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Propagating vernonia altissima from seed
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Posted by jeanner SW Ohio - Z6 (My Page) on Mon, Mar 14, 05 at 20:15
| I gathered some seeds last fall from the only plant that I have. I wasn't sure if they required stratification of not so I stratified some of them. But none of the seeds have germinated. I have them on heat pads under lights as I do with all my seeds. Anyone know how long they take to germinate or suggestions for success?
Thanks in advance
Jean |
Follow-Up Postings:
RE: Propagating vernonia altissima from seed
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| on heat pads under lights... i am assuming that you do have them on moist soil. after cold stratifying, if they are are warm and moist they should germinate in a week or two. |
RE: Propagating vernonia altissima from seed
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| Yep, they are in moist soil. I brought them in a few weeks ago. They are covered with about 1/8" of soil, although I would suspect some are deeper and some are exposed. They were stratified for about 6 weeks, our weather has been up and down alot this winter so I know they got at least 3 freeze cycles, maybe more. I didn't have room to do alot but there were probably 60 seeds. I was hoping for at least a few. I'm not ready to give up yet. Next year I may try to plant them outside in the fall directly in the dirt with a wire cage over them to keep the deer from trampling them. |
RE: Propagating vernonia altissima from seed
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| The reference that I have says that light improves germination; 30% with light, 5% without light. Uncovering your seeds should improve the germination percentage. Cold-moist stratification is not required. Germination should occur in 2 - 3 weeks. |
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