Ask a Question forum: how does a zinnia self sow itself

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Name: david sevitt
jerusalem israel
Oct 4, 2015 5:52 AM CST
i understand that self sowing means that a plant drops its seeds for example in autumn.then the seeds lay on the ground.....but how do they go through the winter before they sprout in spring?i thought there needed to be some human interferance?i am talking about a lot in an external garden
Name: Dee Moore
Arroyo Grande, CA (Zone 9a)
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Oct 4, 2015 9:28 PM CST
Most plants will "self sow" in the area that they grow in naturally. So when we grow plants that are not "wild" in our area it is best to research what they need to germinate. Zinnias (Zinnia elegans) germinate at a temperature of 70 degrees in 5-7 days. And they need it to be dark (seed covered with dirt).
I collect my Zinnia seeds and plant them in spring, this way the birds and bugs don't eat them over winter. Some plants need the cold period in order germinate, but Zinnias don't need this so you will get more plants if you put them in, in spring.
Good luck!
Name: david sevitt
jerusalem israel
Oct 4, 2015 11:10 PM CST
Thank you for your reply I will collect the seeds for winter protection
Name: greene
Savannah, GA (Sunset 28) (Zone 8b)
My dogs love me; some people don't.
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Oct 5, 2015 6:12 AM CST
Each type of seed has a different requirement. Just as an example, here is a list that was compiled to show the stratification needs of many perennial plants.

Annual plants are less fussy, but I have not yet found a list showing the stratification needs of annuals.
Here is the list for annuals/biennials:
Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~"Leaf of Faith"
[Last edited by greene - Oct 5, 2015 6:14 AM (+)]
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Name: david sevitt
jerusalem israel
Oct 5, 2015 10:42 AM CST
thanks the list is very informative and useful
(Zone 8b)
Oct 18, 2015 4:00 PM CST
My mom always waited til the end of the season, scratched the soil a little, and crumbled the dried flower heads where she wanted flowers to come up the next year. She was always tremendously successful with doing it this way.
Name: david sevitt
jerusalem israel
Oct 18, 2015 9:19 PM CST
sally since the weather here in winter is cold iwill try your mums idea at the end of winter

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