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please help. zinnia, cosmos and cockscomb celosia dying

7 years ago

last modified: 7 years ago

Hi, guys. I am new here. I posted because I don't know what is happening. I started mini zinnia, cosmos bipinnatus and celosia from seed and after deadheading them, their leaves begin to wilt and they are all dead now. I've researched about this but I cannot find an answer. Please help. :(
Thank you in advance.

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Comments (9)

PRO
Down to Earth Landscaping, Inc.
7 years ago
Kenny,

Sorry to hear about your garden. I have to ask where you are located (which Zone) and where the plants are planted (especially whether they are indoors or out). I do know that where we are in New Jersey, zone 7a, all of those plants are annuals meaning that they only grow for one year, and die off with the first frost.

More likely than not you'll have to replant each of those plants each spring!
Kenny
Original Author
7 years ago
Hi Down to Earth Landscaping, Inc.

I am from the Philippines. They were all in big pots. They were only I think 6 months. I put them outside but if it is going to rain, I put them all inside our roofed garage.
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PRO
Down to Earth Landscaping, Inc.
7 years ago
Kenny,

While we are not too well versed in plant hardiness in the Philippines, we would say that more than likely each of these plants still act as annuals in your area, meaning that they die off completely after their life cycle which lasts only one year.

Not to worry! Your local nurseries and garden centers will be selling them again come spring time!

When purchasing flowers, make sure to look to see if they are annuals or perennials. Anything you purchase as an annual will have to be repurchased every year whereas perennials will come back each spring!
Kenny
Original Author
7 years ago
Thank you for your reply. One last question. Do annuals die even if they are not one year old even if they are healthy or they will really die after one year?
Kenny
Original Author
7 years ago
Because it is really strange that they died after deadheading and they are not one year old.
PRO
Down to Earth Landscaping, Inc.
7 years ago
Kenny,

Any plant that is considered an annual is a plant whose whole life cycle (from germination to production of seeds) is completed in one year. Once the plant has produced seeds (after it flowers), then yes it will die. Remember, even if you have not owned the plant for one year (say you planted in the summer) the plant still has been alive in the nursery since germination in the spring. As such, the plant has lived for it's one year (or a few months less, likely early spring to late fall).

Hope this helps!
Kenny
Original Author
7 years ago
Oh okay. So maybe that was the reason why they died. Now I understand. So I think I should deadhead them right away if I see the flowers starting to fade because I only removed them after like two weeks even if the flowers were already spent. Thank you so much for you help. =)
steiconi
7 years ago
I don't know about these plants specifically, but many plants sold as annuals in temperate climates are perennials (or even weeds) in tropical places like the Philippines.

Instead of deadheading all of them, you might let some go to seed, and plant the seeds for your next crop.
Kenny
Original Author
7 years ago
Okay. That is good too. Thank you steiconi. :)

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