Western Native Seed - Native Plant Seed for the Rocky Mountains and Western Great Plains

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P.O. Box 188, Coaldale, CO 81022 Phone: (719) 942-3935 FAX: (719) 942-3605 Email: info@westernnativeseed.com

 

Species Common Name Germination Information
Abronia fragrans Snowball Sand Verbena 30-60 day cool moist stratification or plant outside fall to very early spring. plant to 1/8 inch deep
Achillea millefolium White Yarrow no pretreatment. plant outside fall, spring or summer. plant on soil surface or to 1/16 inch deep. Needs warm soil for germination.
Aconitum columbianum Monkshood 30-90 day cool moist stratification or plant outside in the fall in moist soil. plant on soil surface and cover with a thin layer of sand
Actaea rubra Baneberry 21 days 70 F day 64 F night then 90 days moist @ 34 F or plant outside at end of summer
Agastache pallidiflora Pale Hyssop no pretreatment necessary. Sometimes needs up to 30 days of cool moist stratification.
Agastache urticifolia Horse Nettle 45 day cool moist stratification germination or plant outside in the fall. plant on or just below soil surface
Allium acuminatum Taper-tip Onion some germintaion with no pretreatment or 30 day cool moist stratification or plant outside fall to early spring. plant to 1/16-1/8 inch deep
Allium cernuum Pink Nodding Onion some germintaion with no pretreatment or 30 day cool moist stratification or plant outside fall to early spring. plant to 1/16-1/8 inch deep
Amorpha canescens Leadplant hot water soak for 6-8 hrs, then 30 day cool moist stratification or plant outside in the fall. plant to 1/16 inch deep
Anemone cylindrica Thimbleweed no pretreatment or 80 day cool moist stratification. plant outside fall to spring. plant on soil surface, may take up to 21 days to germinate.
Aquilegia coerulea Colorado Columbine 21 day cool moist stratification, some germination without pretreatment or plant outside fall to early spring. plant to 1/32 inch deep
Argemone polyanthemos Prickly Poppy plant outside in the fall. plant on soil surface and cover with 1/8 inch of sand.
Arnica parryi Rayless Arnica No pretreatment. plant outside spring or summer. plant on soil surface or to 1/32 inch deep
Artemisia frigida Fringed Sage no pretreatment. plant outside fall or spring. plant on soil surface.
Artemisia ludoviciana Prairie Sage no pretreatment necessary. plant outside spring or summer. plant on soil surface
Asclepias asperula Antelope Horns No pretreatment. Plant outside fall to spring. plant to 1/8 inch deep
Asclepias incarnata Swamp Milkweed No pretreatment. Plant outside spring or summer. plant on soil surface or to 1/8 inch deep
Asclepias speciosa Showy Milkweed No pretreatment. Plant outside spring or summer. plant to 1/8 inch deep
Aster engelmannii Engelmanns Aster Plant outside fall or spring. plant to 1/32 inch deep
Aster glaucodes Blueleaf Aster no pretreatment necessary. plant outside after last frost
Aster laevis Smooth Aster No pretreatment. plant outside spring or summer. plant on soil surface or to 1/32 inch deep
Aster novae-angliae New England Aster no pretreatment necessary. plant outside spring or summer. plant on soil surface or to 1/16 inch deep
Astragalus ceramicus Painted Milkvetch Scarify or hot water soak or plant outside in the fall. plant on soil surface and cover with a thin layer of sand
Astragalus convallarius Whisk Broom Milkvetch Scarify with sandpaper and plant outside in fall or winter
Astragalus drummondii Woolly Milkvetch Scarify or 30-60 day cool moist or plant outside in the fall. plant to 1/16 inch deep
Astragalus utahensis Utah Milkvetch 30-90 day cool moist stratification or plant outside fall to late winter. Plant to 1/8 inch deep
Bahia dissecta Mountain Bahia no pretreatment. plant outside spring or summer. plant on soil surface or to 1/32 inch
Baileya multiradiata Desert Marigold 30 day cool moist stratification or plant outside fall, or early spring. plant on soil surface or to 1/16 inch deep
Balsamorhiza sagittata Arrowleaf Balsamroot 45 day cool moist stratification or plant outside in the fall to early spring. plant on soil surface or to 1/8 inch deep
Calochortus gunnisonii Mariposa Lilly 45 day cool moist stratification or plant outside fall to early spring. plant on soil surface or to 1/8 inch deep
Calylophus hartwegii Lavander Leaf Primrose no pretreatment. plant outside spring or summer. plant on soil surface or to 1/16 inch deep
Campanula rotundifolia Harebells no pretreatment. plant outside spring or summer. plant on soil surface
Castilleja applegatei Wavy-leaf Indian Paintbrush 60-90 day cool moist stratification or plant outside in the fall plant on soil surface and cover with thin layer of sand.
Castilleja integra Indian Paintbrush 30 day cool moist stratification or plant outisde fall to early spring. plant 1/32 to 1/16 inch deep. Host plants not necessary for first year, but may be needed for long term survival. Takes up to 4 weeks to germinate.
Castilleja linariifolia Narrow Leaf Paintbrush 30-60 day cool moist stratification or plant outside in the fall. plant on soil surface or to 1/16 inch deep
Castilleja miniata Aspen Paintbrush 30-60 day cool moist stratification or plant outside in the fall. plant on soil surface or to 1/16 inch deep
Castilleja rhexiifolia Split Leaf Paintbrush 30-60 day cool moist strat. or plant outside in the fall in moist soil. plant on soil surface and cover with a thin layer of sand
Castilleja sessiliflora Downy Paintbrush 30-60 day cool moist stratification or plant outside in the fall. plant on soil surface or to 1/16 inch deep
Castilleja sulphurea Sulfur Paintbrush 30-60 day cool moist stratification or plant outside fall to late winter. plant on soil surface or to 1/32 inch deep
Clementsia rhodantha Queens Crown no pretreatment plant outside spring or summer, plant on soil surface in moist or wet soilRefund if no gremination
Cleome lutea Golden Beeplant dormant seed 30-60 day cool moist stratification
Cleome serrulata Rocky Mountain Bee Plant 30-60 day cool moist stratification or plant outside fall to early spring. plant to 1/8 inch deep
Coreopsis lanceolata Lanceleaf Coreopsis no pretreatment necessary. plant outside spring or summer. plant to 1/16 inch deep
Coreopsis tinctoria Plains Coreopsis No pretreatment necessary. plant outside spring or summer. plant on soil surface or to 1/16 inch deep
Cosmos parviflorus Small Flowered Cosmos no pretreatment or 30 day cool moist stratification, or plant outside fall to early spring. plant to 1/8 inch deep
Dalea candida White Prairie Clover no pretreatment necessary. plant outside spring or summer. plant to 1/8 inch deep. Germinates at 15-30 C.
Dalea cylindriceps Rabbitfoot Dalea 30 day cool moist stratification
Dalea jamesii James Dalea no pretreatment necessary for dehulled seed
Dalea purpurea Purple Prairie Clover no pretreatment necessary. plant outside spring or summer. plant to 1/8 in deep
Delphinium occidentale Western Larkspur no pretreatment or up to 30 day cool moist stratification or plant outside in early spring. plant 1/8 to 1/16 inch deep
Delphinium virescens Prairie Larkspur dormant seed. 30-60 day cool moist stratification or plant outside in the fall. plant to 1/16 inch deep
Desmanthus illinoensis Illinois Bundleflower Scarification will improve germination. Rub with sandpaper to roughen seed cost. Plant outside spring or summer. plant 1/8 to 1/4 inch deep.
Dichelostemma pulchellum Bluedicks Plant outside fall or spring. plant 1/16-1/8 inch deep. Seed planted in the spring may take one year to germinate. Germination rate may be improved by soaking for 12-24 hours followed by 14-28 day cool moist stratification.
Dryas octosepala Mountain Dryad no pretreatment necessary. plant outside in spring. plant on soil surface
Drymocallis fissa Big-flower Cinquefoil 30-60 cool moist stratification or plant outside in the fall. Sow on soil surface and cover with thin layer of sand or soil
Echinacea angustifolia Black Samson 30-60 day cool moist stratification or plant outside in the fall. plant to 1/8 inch deep
Epilobium angustifolium Fireweed no pretreatment or 30 day cool moist stratification. or plant outside fall to early spring. plant on soil surface and cover with very thin layer of sand or soil. May take 2-4 weeks to germinate
Eremogone congesta Round-headed Sandwort no pretreatment necessary. sometimes may need up to 60 days cool moist stratification. plant outside before last frost in spring
Eremogone fendleri Fendlers Sandwort No pretreatment necessary or 30 day cool moist stratification, or plant outside fall or spring. plant on soil surface
Erigeron elatior Tall Fleabane Daisy no pretreatment. plant outside spring or summer. plant on soil surface or to 1/32 inchRefund if no germination
Erigeron engelmannii Dwarf Fleabane Daisy plant outside fall to early spring. plant on soil surface or to 1/32 inch deep
Erigeron peregrinus Subalpine Fleabane plant outside fall to early spring. plant on soil surface or to 1/32 inch deep
Erigeron speciosus Showy Fleabane Daisy no pretreatment. plant outside spring or summer. plant on soil surface or to 1/16 inch deep
Eriogonum jamesii v. jamesii James Wild Buckwheat no pretreatment necessary.. plant outside spring or summer. plant on soil surface or to 1/8 inch deep
Eriogonum racemosum Racemose Wild Buckwheat no pretreatment necessary.. plant outside spring or summer. plant on soil surface or to 1/8 inch deep
Eriogonum subalpinum White Sulfur Flower no pretreatment necessary.. plant outside spring or summer. plant on soil surface or to 1/8 inch deepRefund if no gremination.
Eriogonum umbellatum v. majus Cream Buckwheat 14-30 day cool moist stratification or plant outside fall to early spring. sow on soil surface or to 1/8 inch deep
Eriogonum umbellatum v. umbellatum Sulfur Flower 14-30 day cool moist stratification or plant outside fall to early spring. sow on soil surface or to 1/8 inch deep
Erysimum capitatum Wallflower 21-30 day cool moist stratification or plant outside late fall or early spring. plant on soil surface or to 1/16 inch deep
Erythronium grandiflorum Dogtooth Violet 60-120 day cool moist stratification or plant outside in the fall. Plant to 1/4 in deep
Eschscholzia californica California Poppy No pretreatment. Plant outside fall to spring. Plant to 1/16 inch deep
Frasera speciosa Monument Plant 90-120 day cold moist stratification or plant outside in the fall. plant on soil surface or to 1/16 inch deep
Gaillardia aristata Perennial Blanketflower no pretreatment. plant outside spring or summer. plant 1/8 to 1/16 inch deep
Gaillardia pinnatifida Adobe Blanketflower no pretreatment necessary, plant outside spring or summer. plant on soil surface or to 1/8 inch deep
Gaillardia pulchella Indian Blanketflower no pretreatment, plant outside spring or summer. plant on soil surface or to 1/8 inch deep
Gentiana algida Snow Gentian 30 day cool moist stratification or plant outside fall or early spring. plant to 1/32 inch deep.
Gentiana thermalis Fringed Gentian 30-60 day cool moist strat. or plant outside in the fall in moist soil. plant to 1/32 inch deep.
Geum macrophyllum Large-leaved Avens no pretreatment necessary. plant outside spring or summer. plant on soil surface
Geum triflorum Prairie Smoke no pretreatment surface plant, 30 day cool moist may improve germination
Gilia pinnatifida Sticky Gilia 30 day cool moist stratification or plant outside fall to early spring. Sow on soil surface and cover with a thin layer of sand
Glycyrhiza lepidota Wild Licorice Scarify or 30-60 day cool moist or plant outside in the fall. plant to 1/16 inch deep
Haplopappus croceus Saffron Goldenweed no pretreatment necessary. plant outside in spring. sometimes needs up to 30 days cool moist stratification
Hedysarum boreale Chainpod scarify and 30-60 day cool moist stratification or plant outside in the fall without pretreatment. plant 1/8 to 1/4 inch deep
Helenium autumnale Sneezeweed no pretreatment necessary. Plant outside fall to early spring. Plant to 1/16 inch deep
Helenium hoopesii Orange Mountain Daisy no pretreatment necessary. plant outside fall to spring. plant on soil surface or to 1/16 inch deep
Helianthella parryi Little Sunflower no pretreatment necessary
Helianthella quinquenervis Aspen Sunflower no pretreatment necessary. plant outside spring or summer plant on soil surface or to 1/16 inch
Helianthus annuus Annual Sunflower no pretreatment necessary plant outside fall to early summer. Plant to 1/8-1/4 inch deep. Best germination if soil is above 45 F.
Helianthus maxmilianii Maxmilians Sunflower no pretreatment, 30 day cool moist may improve germination or plant outside fall to early spring. Plant 1/8 to 1/16 inch deep
Helianthus nuttallii Marsh Sunflower 45 day cool moist stratification or plant outside in the fall. plant to 1/16 inch deep.
Helianthus petiolaris Plains Sunflower no pretreatment necessary or 30-90 day cool moist stratification or plant outside in the fall. plant to 1/8 inch deep
Helianthus pumilus Foothills Sunflower 30-60 day cool moist stratification. or plant outside in the fall. plant on soil surface and cover with a thin layer of sand
Heracleum sphondylium Cow Parsnip 60-120 days cool moist stratification, or plant outside in the fall. plant to 1/16 inch deep. Very dormant seed, may take up to 3 years to germinate
Hymenoxys grandiflora Old Man of the Mountain no pretreatment. plant outside spring or summer. plant on soil surface or to 1/16 inch deep
Iliamna rivularis Wild Hollyhock Hot water soak or sandpaper scarification or plant outside in the fall. plant to 1/8 inch deep.
Ipomoea leptophylla Bush Morning Glory 30-60 day cool moist stratification or plant outside fall or winter. Plant to 1/4 inch deep
Ipomopsis aggregata Scarlet Gilia Plant outside fall to spring. plant on soil surface or to 1/8 inch deep
Iris missouriensis Rocky Mountain Iris scarify then 90-180 days cool moist stratification or plant outside in the fall in moist soil for delayed germination. plant to 1/8 inch deep
Liatris punctata Dotted Gayfeather no pretreatment. Plant outside spring or summer. plant on soil surface. Do not cover, needs light to germinate
Ligularia amplectens Subalpine Groundsel 45 cool moist stratification or plant outside in the fall or winter. plant on soil surface.
Ligularia bigelovii Nodding Groundsel 45 cool moist stratification or plant outside in the fall or winter. plant on soil surface or to 1/16 inch deep.
Linum perenne v. lewisii Blue Flax APPAR No pretreatment necessary. plant outside fall or spring. plant to 1/8 inch deep
Linum perenne v. lewisii Blue Flax Maple Grove No pretreatment necessary. plant outside fall or spring. plant to 1/8 inch deep
Linum puberulum Copper Flax No pretreatment or 30-90 day cool moist stratification. Plant outside fall to early spring. Plant to 1/8 inch deep
Lupinus alpestris Mountain Lupine 30-45 day cool moist stratification or plant outside fall to early spring. plant to 1/8 inch deep
Lupinus argenteus Silver Lupine 45 day cool moist or hot water soak (bring water to nearly boiling and then pour over seeds and let soak for 12-24 hrs) or scarify with sandpaper or plant outside in fall. plant to 1/4 inch
Lupinus plattensis Platte Lupine 45 day cool moist or hot water soak (bring water to nearly boiling and then pour over seeds and let soak for 12-24 hrs) or scarify with sandpaper or plant outside in fall. plant to 1/4 inch
Lupinus pusillus Ant Money 45 day cool moist or hot water soak or sandpaper scarify or plant outside in the fall. plant up to 1/8 inch deep
Lupinus sericeus Silky Lupine 45 day cool moist or hot water soak or scarify with sandpaper or plant outside in fall. plant to 1/4 inch
Machaeranthera tanacetifolia Tansy Aster no pretreatment. plant outside spring or summer. plant on soil surface or to 1/16 inch deep
Melampodium leucanthum Black Footed Daisy no pretreatment. plant outside spring or summer. plant on soil surface or to 1/16 inch. May take 3-4 weeks to germinate
Mentzelia decapetala Ten Petaled Blazingstar 30 day cool moist stratification or plant outside fall to spring. plant on soil surface or to 1/16 inch deep.
Mertensia lanceolata Lance-leaf Bluebells 60-90 days cool moist stratification or plant outside in the fall. Plant to 1/16 inch deep
Mimulus guttatus Yellow Monkey Flower no pretreatment. plant outside spring or summer. plant on soil surface.
Mirabilis multiflora Wild Four O Clock no pretreatment. plant outside fall or spring. plant 1/8 to 1/4 inch deep. May take 2-3 weeks to germinate.
Monarda fistulosa Wild Bergamot germinates readily, plant outside late spring to early summer. plant on soil surface or to 1/16 -1/8 inch deep
Monardella odoratissima Horsemint 45 day cool moist stratification or plant outside in the fall. plant on or just below soil surface
Oenothera caespitosa Stemless Evening Primrose 45 day cool moist stratification or plant outside fall to early spring. plant 1/32 to 1/16 inch deep
Oenothera coronopifolia Creeping Evening Primrose may need up to 60 days cool moist stratification. plant outside in the fall. plant to 1/16 inch deep
Oenothera missouriensis Missouri Evening Primrose no pretreatment. plant outside fall to early spring. plant on soil surface or to 1/16 inch.
Oenothera pallida Pale Evening Primrose no pretreatment or 14 day cool moist strat. plant outside spring . Plant on soil surface or to 1/16 inch deep
Oenothera villosa Prairie Primrose no pretreatment, plant outside fall to spring. plant to 1/16 inch deep. Takes 3-4 weeks to germinate
Onosmodium molle Marbleseed 30-60 day cool moist stratification or plant outside in the fall. Plant on soil surface and cover with a thin layer of sand
Orthocarpus luteus Yellow Owls Clover dormant seed, 30-60 day cool moist stratification or plant outside fall to early spring. plant on soil surface
Oxytropis lambertii Showy Locoweed scarify and plant outside spring or summer. plant on soil surface or to 1/8 in deep
Oxytropis sericea Silky Locoweed scarify and plant outside spring or summer. plant on soil surface or to 1/8 in deep
Palafoxia sphacelata Showy Palafoxia no pretreatment necessary. plant outside fall or spring
Pedicularis crenulata Purple Lousewort No pretreatment or 30 day cool moist stratification. Plant outside spring or summer. plant on or just below soil surface
Pedicularis groenlandica Elephant Head 14-30 days cold moist stratification, or plant outside fall to early spring. plant to 1/16 inch deep, cover with a thin layer of mulch and water once or twice a month if no snow during the winter and keep moist in the spring
Pedicularis parryi Parrys Lousewort No pretreatment or 30 day cool moist stratification. Plant outside spring or summer. plant on or just below soil surface
Penstemon angustifolius Pagoda Penstemon 30 days moist stratification at 34-41 deg F or plant outside in the fall. plant on soil surface and cover with a thin layer of sand
Penstemon auriberbis Golden Beardtongue 30 days moist stratification at 34-41 deg F or plant outside in the fall. plant on soil surface and cover with a thin layer of sand
Penstemon barbatus Scarlet Bugler 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand
Penstemon comarrhenus Canyon Beardtongue 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand
Penstemon cyananthus Wasatch Penstemon 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand
Penstemon eatonii Firecracker Penstemon 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand
Penstemon fendleri Fendlers Beardtongue 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand
Penstemon fruticosus Bush Penstemon 30-45 day cool moist stratification or plant outside in the fall or winter. Plant on soil surface and cover with a thin layer of sand
Penstemon glaber v. alpinus Sawsepal Penstemon 30-60 days moist stratification at 34-41 deg F or plant outside in the fall. plant on soil surface and cover with a thin layer of sand
Penstemon grandiflorus Shell Leaf Penstemon 30-60 days moist stratification at 34-41 deg F or plant outside in the fall. plant on soil surface and cover with a thin layer of sand
Penstemon griffinii Griffins Penstemon 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand
Penstemon linarioides Toadflax Beardtongue needs up to 60 days cool moist stratification. plant outside in the fall
Penstemon pachyphyllus Utah Bluebells 30 days cold moist stratification or plant outside fall to late winter. plant on soil surface and cover with a thin layer of sand
Penstemon palmeri Palmers Penstemon 30-45 day cool moist stratification or plant outside fall to late winter. plant on soil surface and cover with a thin layer of sand
Penstemon procerus Small Flowered Penstemon 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand
Penstemon rydbergii Rydbergs Penstemon 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand
Penstemon secundiflorus Orchid Beardtongue 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand
Penstemon spectabilis Mohave Bugler no pretreatment 30 days moist stratification at 34-41 deg F or plant outside in the fall. plant on soil surface and cover with a thin layer of sand
Penstemon strictus Rocky Mountain Penstemon 14-45 day cool moist stratification or plant outside fall to early spring. plant on soil surface and cover with a thin layer of sand. May take 3 weeks to germinate
Penstemon superbus Superb Beardtongue no pretreatment or 30-60 day cool moist or plant outside in the fall in moist soil. plant on soil surface and cover with a thin layer of sand
Penstemon utahensis Utah Beardtongue needs up to 60 days cool moist stratification. plant outside in the fall
Penstemon venustus Blue Mountain Penstemon 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand
Penstemon virens Blue Mist Penstemon 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand
Penstemon virgatus Wand Beardtongue 30-60 days moist stratification at 34-41 deg F or plant outside in the fall and water once a month if no snow. plant on soil surface and cover with a thin layer of sand
Penstemon whippleanus Dusky Beardtongue 45 days moist stratification at 34-41 deg F or plant outside in the fall. plant on soil surface and cover with a thin layer of sand
Phacelia heterophylla White Scorpionplant 30 day cool moist stratification or plant outside in the fall. plant to 1/16 inch deep
Polanisia dodecandra Clammyweed 30 day cool moist stratification or plant outside fall to spring. plant on soil surface or to 1/16 inch deep.
Primula parryi Parrys Primrose no pretreatment necessary. plant outside in the spring. plant on soil surface or to 1/16 inch deep.
Psilostrophe cooperi Paperflower 30 day cool moist improves germination or plant outside late spring early summer. plant on soil surface or to 1/16 inch deep.
Psoralea lanceolata Lemon Scurfpea scarify or 45 day cool moist stratification
Pulsatilla patens Pasque Flower no pretreatment necessary. plant outside spring or summer. plant on soil surface
Ratibida columnifera Prairie Coneflower no pretreatment necessary. plant outside spring or summer plant to 1/16 -1/8 inch deep
Ratibida columnifera pulchra Mexican Hat no pretreatment. plant outside spring or summer. plant to 1/16-1/8 inch deep. 7-14 days to germination
Rhinanthus minor ssp. borealis Yellow Rattle no pretreatment or 30-120 day cool moist stratification
Rudbeckia ampla Goldenglow Daisy no pretreatment or 45 days cool moist stratification or plant outside fall to early spring. plant on soil surface or to 1/8 inch deep
Rudbeckia hirta Black-eyed Susan no pretreatment. plant outside spring or summer. plant to 1/16 inch deep
Rudbeckia occidentalis Western Coneflower no pretreatment or 30 day cool moist stratification may increase germination or plant outside fall to early spring. plant to 1/16 inch deep
Schrankia nuttallii Cats Claw Sensitive Briar Scarify with sandpaper then cool moist stratification for 30 days. or plant outside in the fall. plant to 1/8 inch deep
Senecio atratus Golden Butterwort no pretreatment 30 day cool moist may increase germination. plant outside fall or spring. plant on soil surface or to 1/16 inch
Senecio longilobus Silver Groundsel no pretreatment, 30 day cool moist may increase germination. Plant outside in the spring. plant to 1/32 to 1/16 inch deep.
Senecio serra Aspen Groundsel no pretreatment 30 day cool moist may increase germination
Senecio triangularis Arrowhead Groundsel no pretreatment, 30 day cool moist may improve germination or plant outside fall to early spring. plant on soil surface or to 1/16 inch deep
Sidalcea candida White Checkermallow Scarify then 30-90 day cool moist stratification or plant outside in the fall. plant on soil surface or to 1/16 inch deep
Sisyrinchium montanum Blue-eyed Grass Scarify then 30-90 day cool moist stratification
Solidago canadensis Canada Goldenrod 30-60 day cool moist stratification or plant outside fall to early spring. plant on soil surface or to 1/32 inch deep
Solidago missouriensis Goldenrod no pretreatment or 30 days cold moist stratification. Plant outside in spring. plant on soil surface and cover with a thin layer of sand.
Solidago spathulata Short Goldenrod no pretreatment necessary. plant outside fall or spring. plant on soil surface
Sphaeralcea coccinea Scarlet Globemallow scarify or acid soak or hot water soak followed by 60-90 day cool moist stratification or plant outside in the fall. plant to 1/8 inch deep. May take serveral years to germiante.
Sphaeralcea munroana Munroe Globemallow scarify or acid soak or plant outside fall to late winter. Plant to 1/8 inch deep
Stanleya albescens Adobe Princes Plume no pretreatment, 30 day cool moist stratification may increase germination rate. plant on soil surface or to 1/16 inch deep. Takes 2-3 weeks to germinate
Stanleya pinnata Princes Plume 45 day cool moist stratification or plant outside late November to early March, water once or twice a month if you receive no rain or snow. plant to 1/16-1/8 inch deep and cover with a thin layer of mulch.
Swertia perennis Bog Gentian 30-90 day cool moist stratification or plant outside in the fall in moist soil. plant on soil surface or to 1/32 inch deep
Talinum parviflorum Sunbright 30 day cool moist stratification or plant outside fall to early spring, sow on soil surface
Thalictrum dasycarpum Purple Meadow Rue 30-60 day cool moist stratification. plant outside fall or winter. plant on soil surface and cover with a thin layer of sand.
Thalictrum fendleri Meadow Rue 30-60 day cool moist stratification or plant outside fall to early spring. Plant to 1/8 inch deep
Thelesperma filifolium Green Threadleaf 14- 45 day cool moist stratification. Plant outside fall to early spring. plant on soil surface or to 1/16 inch deep. Takes 3-4 weeks to germinate
Thermopsis divaricarpa Foothills Golden Banner scarify with sandpaper or hot water soak and plant outside in the spring or plant outside in the fall without treatment. plant to 1/4 inch
Thermopsis montana Golden Banner scarify with sandpaper or hot water soak and plant outside in the spring or plant outside in the fall without treatment. plant to 1/4 inch
Thermopsis rhombifolia Arroyo Golden Banner scarify or hot water soak or plant outside in the fall. plant on soil surface or to 1/8 inch deep
Tradescantia occidentalis Western Spiderwort no pretreatment necessary. plant outside spring or summer. plant on soil surface or to 1/8 inch deep
Verbena bipinnatifida Dakota Vervain 30 day cool moist stratification or plant outside fall to early spring. plant on soil surface or to 1/16 inch deep
Verbena stricta Hoary Vervain probably needs 30 day cool moist stratification
Verbesina encelioides Crownbeard Daisy no pretreatment. plant outside fall spring or summer. plant on soil surface or to 1/16 inch deep. Typically does not germinate until soil is very warm
Viguiera multiflora Showy Goldeneye 30 day cool moist stratification or plant outside in the fall. plant on soil surface or to 1/16 inch deep
Viola nuttallii Yellow Wild Violet 30-60 day cool moist stratification or plant outside fall to late winter. plant to 1/8 inch deep
Wyethia amplexicaulis Mules Ears low germination without pretreatment, 45 days cool moist stratification increases germination or plant outside fall or winter. plant to 1/8 inch deep
Xylorhiza venusta Cisco Woody Aster 45 cool moist stratification or plant outside fall to late winter. plant on soil surface or to 1/16 inch deep
Zinnia grandiflora Prairie Zinnia no pretreatment. plant outside spring or summer. plant on soil surface or to 1/16 inch deep

Western Native Seed Home

For seeds needing stratification: try one of the following methods: 1.) Leave the seed in the bags in which they are shipped and add just enough water so that the seed is covered by a film of water or so that the seed clumps together. For large seeds a medium such as sand should be added to improve moisture absorption. Then place the bags in the refrigerator. Check every few days to make sure the seed has not dried out. If the seed becomes moldy or starts to germinate, remove and sow in flats. After the recommended stratification period remove the seed even if it has not begun to germinate, and sow in flats. Before sowing, let the seed dry just enough that it can be separated. DO NOT let the seed dry out completely because it will die or go into very deep dormancy and may never germinate, 2.) Sow the seed in flats, moisten and place in the refrigerator for the recommended stratification period or until the seed starts to germinate, 3.) Sow the seed in flats and place outside as many days before the last frost as there are recommended for stratification. Try to keep them covered with sand to keep them from drying out, or 4.) Sow the seed in the ground before the last frost in the spring (for species that require less than 60 days stratification, or for species that require a warm stratification then cool stratification) or after the first frost in the fall (for species that require more than 60 days stratification) and let nature do the work. Keep the ground moist from about the time of the last frost until you start to see germination. Continue watering although less frequently until the seedlings have their first true leaves. If the seed does not germinate the year when sown, try not to disturb the area where seeded until next spring. Sometimes it may take a few years for difficult species to germinate, but most should take a year.