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Beginner Gardening Questions: Celosia annual or perennial?

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Forum: Beginner Gardening QuestionsReplies: 4, Views: 28
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June 8, 2014
8:41 AM

Post #9862484

I just bought some celosia and I really love them. I was told they are annuals. I live in uk. Is there any way I can get them to survive and flower another year or are they doomed to die soon?
Contra Costa County, CA
(Zone 9b)

June 8, 2014
11:48 AM

Post #9862566

Well, you can try.
Here is how I would go about it.
1) As soon as the flowers start to fade, trim them off. Do not give the plant ANY chance to set seed.
2) Cut them back pretty hard in the fall.
3) Bring them in the house to protect them from the cold. Keep them in a sunny window, and be careful not to over water.
4) When the weather has moderated in the spring start taking them outside for a few hours a day, not in the hottest sun. Bring them back inside in case the nights are still too cold. After a week or so of this they can probably stay outdoors if the nights are milder, and in more sun.

Good luck.

If you have several plants, then I would let at least one (the best color) go to seed and collect the seed. Start the seed a month or more before the weather will allow them to go outdoors so the seedlings will have some growth before you set them out.
Opp, AL
(Zone 8b)

June 9, 2014
9:38 AM

Post #9863413

Not a true annual, surviving winter is the only trick. I usually do that by bringing plants inside. I don't try to prevent tender perennials I'm going to bring inside from making flowers, like Impatiens, polka dot plant (Hypoestes,) Begonias, Coleus, various Plectranthus, Kalanchoe blossfeldiana.

Outside, you'd want to use/create a spot that's more warm and dry (or well-drained) than usual, the most common 2 elements of successful microclimates/zone-pushing. If frozen ground is not why they are not usually hardy where you are, it's likely a moisture issue, more tricky to control. Going after the drainage angle would help in that case, keep adding organic matter to the soil surface.

Other measures like putting some dark colored bricks or pavers around plants, cold frame, turning a dark nursery pot over them, black plastic jugs of water, pile of leaves, can make a difference if you're battling the ground freezing.
Contra Costa County, CA
(Zone 9b)

June 9, 2014
7:41 PM

Post #9863932

I think that in the UK it gets cold enough that you will have to bring them in, though if you have a protected spot then try some with all the ideas purpleinopp suggests to keep them warm and not over watered.

June 12, 2014
4:59 AM

Post #9865991

Thanks. I think I will bring them indoors. Can you take cuttings from celosia or can you only get a new plant from seeds? What do the seeds look like and do they come from the dead flower head?

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