View Full Version : Corn lily from seed? (Veratrum californicum)

09-24-2003, 03:28 PM
Anyone know the proper scarification/stratification/?? for germinating corn lily seeds? The info might be in Seed Propagation of CA Native Plants, which i could not find at the library

09-24-2003, 05:39 PM
Found the info.
From http://www.nativeplantnetwork.org/network/search.asp
Seeds are placed in cold moist stratification for 91 days. Germination occurs at 1C.
References: Williams, M. C. and Cronin, E. H. 1968. Dormancy, longevity, and germination of seed of three larkspurs and western false hellebore. Weeds 16, 381-384.
Baskin, C.J. and Baskin, J.M. Seeds: Ecology, Biogeography and Evolution in Dormancy and Germination, Academic Press, 1998. Chapter 10: A Geographical Perspective on Germination Ecology: Temperate and Arctic Zones, pages 331 to 458.

Baskin, Carol C.; Baskin, Jerry M. 2002. Propagation protocol for production of container Veratrum californicum Durand plants; University of Kentucky, Lexington, Kentucky. In: Native Plant Network.

From http://tomclothier.hort.net
Veratrum album, californicum, nigrum, and viride, Sow at 18-22?C 64-71?F for 2-4 wks, move to -6 to -7?C 19-21?F for 4-6 wks, move to 5-12?C 41-53?F for germination.


09-24-2003, 05:48 PM
According to Deno, Seed Germination Theory and Practice, most Veratrum will germinate after 3 months at 70F, followed by 3 months at 40F, followed by 70F for a few weeks. My experience is that this type of seed needs to be buried in moist soil or potting mix in early fall now, kept at normal outdoor temperatures in a shaded place for a couple of months, and then kept cold for 3 or 4 months, either outdoors or in a refrigerator. If you plant your seeds in a pot and use a refrigerator, you must place the pot in a sealed plastic bag, to keep the mix from drying out. It is crucial that you take the pot out of the fridge before outdoor temps get hot above 65F. If the seeds germinate in warm or hot soil, they will probably all die. Do not expose the seedlings to any sun at all. Keep them in full shade, but in good light. Don`t let the potting mix get hot at any time. The best plan is to plant them in the garden as soon as they are large enough, but you will have to be merciless with slugs and snails. It will take several years to get them up to good size, and it won`t be easy. These plants love to grow in cool, wet mountain meadows where the soil never gets hot.</p>