How do I collect seeds from my Cosmos plants?
By Jan65
North East England, United Kingdom
I've deadheaded my Cosmos this afternoon, and some of the flowers were "deader" than they usually are when I snip them off! Due entirely to this site, I'm now inspired to collect the seeds and have a go at growing my own!
Trouble is, I can't decide just what ARE the seeds! Attached photo of a deadheaded flower, and the things that may or may not be the seeds. Are the seeds the little things on the left, or the more substantial things on the right?
Once I've got that established, I then need to know, (please!) what to do with them, how to dry(?) them, store them and when to sow them!
Can you tell I've never done this before? However, I'm very excited at the thought of growing my own, so please be gentle with me!
- 23 Aug, 2009
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Answers
So glad that I gave you a laugh - now can someone please answer my question?!! I AM serious! I really DON'T know which are the seeds! Help!
23 Aug, 2009
Have you tried cutting open one of each to see if there are any seeds ?
23 Aug, 2009
Hmmm, well I'm game for a laugh! Can't cut the smaller ones as they're too insubstantial. Tried cutting one of the larger ones - it's a bit like an outer shell, like a husk, with a pale moist kernel inside. I suspect then that this is the seed. Unless anyone else knows different?! Please feel free to put me right!
23 Aug, 2009
What you have there are seed heads that have not had time to ripen. Sorry but you will not be able to save viable seed from them, you need to wait until the seed pod is ripe (i.e. the seed is just ready to scatter naturally) before collecting if you want to sow and grow.
23 Aug, 2009
Thanks Moongrower. There are still lots more flowers left on the plants which I can leave to go to seed; however, I'm unsure how to tell that the seed pod is ripe and the seeds are about to scatter naturally. Please could you give me some pointers?
23 Aug, 2009
the seed pod will go brown and begin to open up to drop seeds and they will probably swell up too, collect them just before they drop off ( the full pod) and place them into a paper bag and hang up somewhere till they dry out.
23 Aug, 2009
Thank you Usernut! Much appreciated.
23 Aug, 2009
what do cosmos seeds look like
25 Oct, 2009
The Cosmos seeds are in that head. They are small, thin & oblong and will turn dark brown to black. There are many seeds on each pod and they can be hard to catch as they dry before they fall off. The rest of the pod is chaff and don't worry to much about seperation all the seeds from all the chaff. My cosmost has been reseed in itself quite easily.
31 Oct, 2017
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Sorry jan Idon't know the answer but you gave me a much needed laugh thank-you x
23 Aug, 2009