Ask a Question forum: Hibiscus Flower Edges are Turning Black

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Jun 10, 2016 12:12 PM CST
The flowers on my hibiscus plants are turning black at the edges. Right now it's only the edges. The leaves are unaffected. What is causing this?
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Name: Elaine
Sarasota, Fl
The one constant in life is change
Cat Lover Master Gardener: Florida Tropicals Multi-Region Gardener Vegetable Grower Region: Florida
Herbs Orchids Birds Garden Ideas: Level 2 Garden Sages Celebrating Gardening: 2015
Jun 10, 2016 2:29 PM CST
Has the weather been pretty hot where you are? (please complete your profile to tell us where you live?)

Hibiscus flowers only last one day at the best of times, but if it's really hot and dry, you should be watering thoroughly in the morning so that the plant will have lots of water through the day. The flower edges are the first things to show stress.

If this plant is in a pot, you might try moving it to a spot where it only gets morning sun for the hottest part of the summer. Or at least give it some shade through the middle of the day.

"Success is stumbling from failure to failure with no loss of enthusiasm." –Winston Churchill
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
Jun 10, 2016 6:43 PM CST
Hibiscus need 6+ hours of sun a day to bloom (that is considered full sun). But they also require copious amounts of water. When I grew them in California, they got all day sun but were sitting in saucers. I watered everyday and made sure that the saucers were always full.

Knowing where you live would be a great help.

Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost


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