|
| L | Exposure to light beneficial |
| SL | Sow on surface, seed exposed to light |
| JC | Just cover seed lightly |
| PH | Plant with host plant, such as Blue Gramma grass |
| OS | Oscillating temperatures helpful, esp. cool nights & warm days |
| LG | Potential long germination period, keep pot for two years |
| D | Sow seed deep enough to be covered and in dark |
| GA3 | Gibberellic Acid 3, soaking in a weak solution helpful, see Deno's book |
| CS | Cold stratify - place sown seed in refrigerator, 40 degrees F |
| CF | Cold stratify - place sown seed in freezer, 5 degrees F |
| OT | Outdoor treatment - variations in temperature, below and above freezing, help remove germination inhibitors |
| wk | Weeks |
| SC | Abrade the seed on sandpaper or poke with a needle on the side of the seed. Penetrate seed coat but don't harm the working parts. |
| SO | Soak in water overnight |
| Bag | SL, place in plastic bag, keep moist |
| WCW | Warm, cold, warm -Plant at 70°F for 2 to 4 weeks, if no germination, either move OT, or move to 40°F for 6 weeks, then 70°F |
For more detailed procedures on germinating seed, we highly recommend Seed Germination Theory and Practice, by Norman C. Deno. It is available from the author for $20US postpaid surface anywhere. Contact:
139 Lenor Drive
State College, PA 16801 USA
Germination Data for this years seed offering is listed below. For other germination on seed we may have offered in the past, please see our Plant Description Reference Pages.
| Name | Germination Information |
| Acantholimon avenaceum | JC, 70°F |
| Acantholimon litvinovii | OT |
| Acantholimon venustum | JC, 70°F |
| Aethionema sp. | JC, 40°F |
| Aethionema subulatum | JC, 40°F |
| Agoseris glauca var. dasycephala | JC, 70°F |
| Amsonia jonesii | L 70°F or OT |
| Androsace chamaejasme ssp. carinata | JC, 70°F, L |
| Androsace septentrionalis | SL, 70°F |
| Anemone multifida var. globosa | OT or CS 3wk |
| Anemone multifida var. multifida | CS 3wks, 70°F or OT |
| Anthyllis vulneraria | OT |
| Aquilegia caerulea | SL, 70°F |
| Aquilegia jonesii | SL, 70°F, GA3, or OT |
| Aquilegia longissima | SL, 70°F |
| Aquilegia saximontana | SL, OT, LG |
| Armeria scabra ssp. sibirica | JC 70°F |
| Arnica latifolia | JC, 70°F |
| Arnica rydbergii | JC 70°F |
| Asclepias cordifolia | OT |
| Asclepias fascicularis | OT |
| Aster coloradoensis | D, 70°F |
| Astragalus crassicarpus | SC, JC, 70°F |
| Astragalus simplicifolius | SC, JC, 70°F |
| Astragalus spatulatus | SC, JC, 70°F |
| Astragalus tephrodes var. brachylobus | SC, JC, 70°F |
| Besseya alpina | SL, 70°F |
| Besseya wyomingensis | SL, 70°F |
| Calceolaria biflora | SL,70°F |
| Calochortus leichtlinii | WCW |
| Calochortus monophyllus | OT |
| Calochortus tolmiei | WCW |
| Caltha leptosepala | JC, OT |
| Calylophus lavandulifolius | CS 3wk, SC,70°F or OT |
| Campanula barbata | SL, 70°F |
| Campanula betulifolia | SL, 70°F |
| Campanula choruhensis | SL, 70°F |
| Campanula ramosissima | SL, 70°F |
| Campanula tridentata | SL, 70°F |
| Campanula trogerae | SL, 70°F |
| Campanula waldsteiniana | SL, 70°F |
| Castilleja exserta ssp. exserta | OT |
| Castilleja integra | OT |
| Cerastium candidissimum | D, 70°F |
| Clematis columbiana var. tenuiloba | L 70°F |
| Clematis hirsutissima var. hirsutissima | JC OT or CS 3wk, 70°F |
| Clematis scottii | JC OT or CS 3wk, 70°F |
| Clematis scottii | JC OT or CS 3wk, 70°F |
| Corydalis caseana ssp. caseana | WCW |
| Corydalis solida | JC, OT |
| Cryptantha caespitosa | OT, L |
| Daphne oleioides | JC, 70°F |
| Degenia velebitica | JC 70°F |
| Delphinium barbeyi | D, 70°F |
| Delphinium brunonianum | D, 70°F |
| Delphinium geyeri | D, 70°F |
| Delphinium nelsonii | OT |
| Dianthus alpinus | JC, 70°F |
| Dianthus haematocalyx ssp. pindicola | JC, 70°F |
| Dianthus kuznetzowii | JC, 70°F |
| Dianthus microlepis | JC, 70°F |
| Dianthus pavonius (neglectus) | JC, 70°F |
| Digitalis obscura | JC 70°F |
| Digitalis purpurea ssp. mariana | JC 70°F |
| Dodecatheon conjugens var. conjugens | JC, 70°F |
| Dodecatheon pulchellum | JC, 70°F |
| Douglasia montana | OT |
| Draba oligosperma | L 70°F |
| Draba paysonii | SL, 70°F |
| Draba polytricha | SL, 70°F |
| Dryas octopetala var. hookeriana | JC, 70°F |
| Echinocereus coccineus x dasyocanthis (reddish-orange flowers) | SL 85°F |
| Echinocereus coccineus x dasyocanthus (pink flowers) | SL 85°F |
| Echinocereus stramineus x triglochidiatus var. mojavensis | SL 85°F |
| Echinocereus triglochidiatus var. mojavensis, f. inermis | SL 85°F |
| Erigeron compositus 'Mt. Adams Dwarf' | JC 70°F |
| Erigeron elatior | JC, 70°F |
| Erigeron elegantulus | JC 70°F |
| Erigeron leiomerus | JC 70°F |
| Erigeron peregrinus | JC, 70°F |
| Erigeron simplex | JC, 70°F |
| Erigeron ursinus | JC 70°F |
| Eriogonum acaule | OT |
| Eriogonum arcuatum var. xanthum | JC 70°F |
| Eriogonum caespitosum | JC, 40°F |
| Eriogonum compositum | OT |
| Eriogonum corymbosum 'San Rafael Swell' | OT |
| Eriogonum douglasii | JC, 70°F |
| Eriogonum niveum var. niveum | OT |
| Eriogonum ovalifolium var. purpureum | JC, 40°F or 70°F |
| Eriogonum pulchellum | OT |
| Eriogonum subalpinum | OT |
| Eriogonum umbellatum ex 'Alturas Red' | OT |
| Eritrichum howardii | OT |
| Eritrichum nanum var. elongatum | OT |
| Erodium petraeum | JC, 60°F |
| Eryngium giganteum 'Miss Willmott's Ghost' | WCW or GA3, 70°F |
| Erysimum capitatum (chili red form) | JC, 70°F |
| Erysimum nivale | SL, 70°F |
| Escobaria vivipara | OT or 85°F |
| Gaultheria humifusa | BAG |
| Gentiana acaulis | SL, CF 3wk, 70°F or OT |
| Gentiana angustifolia | OTor GA3, 70°F |
| Gentiana clusii var. violacea | OTor GA3, 70°F |
| Gentiana gelida | OT |
| Gentiana paradoxa | SL, CF 3wk, 70°F or OT |
| Gentiana parryi | JC 70°F |
| Gentiana verna | SL, OT or, GA3 TR for 10 d |
| Gentianopsis barbellata | SL, OT |
| Geranium argenteum | D, 70°F |
| Glaucium cf acutidentatum | D 70°F |
| Helichrysum aureum ssp. scopulosum | SL, 70°F |
| Helichrysum flanaganii | SL, 70°F |
| Heterotheca jonesii | JC 70°F |
| Heuchera hallii | SL, 70°F |
| Heuchera parvifolia | SL, 70°F |
| Heuchera pulchella | SL, 70°F |
| Hieracium villosum | JC, 70°F |
| Hymenoxys acaulis | JC, 70°F |
| Hymenoxys brandegei | JC, 70°F |
| Hypericum olympicum var. uniflorum 'Citrinum' | SL, 70°F |
| Ipomopsis aggregata | JC 70°F |
| Ipomopsis aggregata var. macrosiphon | JC, 70°F |
| Ipomopsis longiflora | JC, 70°F |
| Iris manchurica | L 70°F |
| Kelseya uniflora | OT or, OT,4 wks, D, 70°F |
| Lesquerella alpina var. alpina | L 70°F |
| Lewisia pygmaea | SL, CS 3wk, 70°F |
| Lewisia rediviva | OT |
| Limnanthes douglasii ssp. rosea | JC, 70°F |
| Lotus oblongifolius | JC, 70°F |
| Lupinus argenteus | JC 70°F SC |
| Lupinus argenteus var. depressus | JC 70°F SC |
| Lupinus brewerii | JC 70°F SC |
| Lupinus nanus | JC 70°F SC |
| Macronema discoideum | JC 70°F |
| Matthiola montana | L 70°F |
| Mitella pentandra | SL, 70°F |
| Origanum acutidens | JC, 70°F |
| Origanum sipyleum | JC, 70°F, L |
| Osteospermum barberiae var. compactum | JC, 70°F |
| Oxytropis besseyi var. fallax | JC 70°F SC |
| Oxytropis lagopus var. atropurpurea | SC, JC, 70°F |
| Oxytropis lambertii | D, 70°F, SC |
| Oxytropis oreophila var. juniperina | JC 70°F SC |
| Oxytropis podocarpa | SC, JC, 70°F |
| Oxytropis sericea | SC, JC, 70°F |
| Oxytropis splendens | SC, JC, 70°F |
| Oxytropis viscida | SC, JC, 70°F |
| Paeonia brownii | WCW |
| Papaver ernesti-mayeri | SL, 70°F |
| Pedicularis densiflora | OT |
| Penstemon angustifolius v. caudatus | JC, OT |
| Penstemon aridus | JC, 70°F |
| Penstemon barbatus | L 70°F |
| Penstemon breviculus | JC, OT |
| Penstemon californicus | JC, OT |
| Penstemon carnosus | JC, OT |
| Penstemon caryi | JC, OT |
| Penstemon eatonii | JC, 40°F or OT |
| Penstemon glaber var. alpinus | JC, 70°F |
| Penstemon glabrescens | OT |
| Penstemon grandiflorus | JC, OT |
| Penstemon hallii | JC, 70°F |
| Penstemon laricifolius var. laricifolius | OT or CS 4w, 70°F |
| Penstemon linarioides ssp. coloradoensis | OT or CS 4w, 70°F |
| Penstemon newberryi | SL, OT |
| Penstemon nitidus var. nitidus | CS 3w, 70°F or OT |
| Penstemon payettensis | OT |
| Penstemon secundiflorus | OT or CS 4w, 70°F |
| Penstemon virens | OT or CS 4w, 70°F |
| Penstemon virgatus ssp. asa-grayi | JC, OT |
| Penstemon whippleanus | OT or JC 70°F |
| Penstemon whippleanus (pale form) | JC 70°F |
| Phacelia sericea | JC, 70°F |
| Phlomis cashmeriana | D, 70°F |
| Phlox aff. bryoides | JC, OT |
| Phlox aff. canescens | JC, OT |
| Phlox aff. grayi | JC, OT |
| Phlox aff. lanata | JC, OT |
| Phlox austromontana ssp. densa | JC, OT |
| Phlox griseola | JC, OT |
| Phlox multiflora var. depressa | OT or JC, CS 4wk, 70°F |
| Physaria acutifolia | JC, 70°F |
| Physaria eburniflora | JC, 70°F |
| Platycodon grandiflorus var. nanus | SL, 70°F |
| Polemonium pauciflorum | JC, 70°F, L |
| Polemonium pulcherrimum | JC, 70°F, L |
| Polemonium viscosum | L 70°F |
| Primula angustifolia | CS 3w, 70°F, L |
| Primula cockburniana | SL, 70°F |
| Primula heucherifolia | JC, 70°F |
| Primula sieboldii | OT |
| Prunus pensylvanica | in a Ziploc bag or OT |
| Pterocephalus pinardii | L 70°F |
| Pulsatilla montana | JC, 70°F |
| Pulsatilla patens | JC, 70°F |
| Pyrrocoma uniflora (Haplopappus) | JC, 70°F |
| Ruschia pulvinaris | SL, 70°F |
| Salvia frigida | L, 70°F |
| Salvia greggii | L, 70°F |
| Salvia jurisicii | L 70°F |
| Salvia pachyphylla | JC 70°F L |
| Saponaria pulvinaris | JC 70°F |
| Saussurea weberi | L 70°F |
| Saxifraga scleropoda | SL, 70°F |
| Sedum rhodanthum (Clementsia rhodantha) | JC, 70°F, L |
| Sedum roseum (Rhodiola rosea) | JC, 70°F, L |
| Sedum tatarinowii | JC, 70°F, L |
| Senecio soldanella | JC, OT |
| Silene acaulis | JC, 70F |
| Silene argaea | L 70°F |
| Silene caryophylloides ssp. echinus | SL, 70°F |
| Sisyrinchium macrocarpum | OT |
| Solidago spathulata var. nana | JC 70°F L |
| Stachys monieri ex 'Sahara Pink' | OT |
| Stachys nivea | OT |
| Stanleya pinnata | JC, 70°F |
| Stenotus acaulis (Haplopappus) | JC, 70°F |
| Talinum brevifolium | JC, OT |
| Tellima grandiflora | SL, 70°F |
| Thlaspi stylosum | JC 70°F |
| Townsendia hookeri | JC, 70°F |
| Townsendia spathulata | JC, 70°F |
| Trifolium dasyphyllum | SC, JC, 70°F |
| Trifolium nanum | SC, JC, 70°F |
| Trifolium parryi | JC, 70°F, L |
| Trollius laxus ssp. albiflorus | JC, OT |
| Verbascum atroviolaceum | JC 70°F L |
| Verbascum dumulosum | JC 70°F L |
| Veronica schmidtiana var. nana | JC, 70°F, OS, L |
| Veronica teucrioides | OT |
| Viola beckwithii var. beckwithii | CS 3w, 70°F GA3 L or OT |
| Viola pinetorum | OT or GA3, 70°F |
| Viola sheltonii | OT or 40°F |
| Zauschneria californica 'Etteri' | JC, 70°F |
| Zauschneria californica ssp. latifolia (Big crimson) | JC, 70°F |
| Zigadenus venenosus | OT |
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