Hardy Hibiscus

I have several Hibiscus plants in my yard. They have been there for years. Being in New Jersey they usually bloom around fourth of July. This year one of them has not bloomed and its August 7th. It looks healthy other them some leaves look curled up on ends. We have had a lot of rain this year, but all my other ones bloomed on schedule. Attached is two photos for you to maybe give me an idea what’s up?

Thank you for your time Bob Garatty

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1 Comment To "Hardy Hibiscus"

#1 Comment By MichiganDot On 08/07/2018 @ 3:27 pm

I noticed that it is only new growth that is affected. To me, this is a sure sign of aphids or thrips. Both damage tender new stems and buds. So get up real close ’cause these are very small insects. Aphids can’t fly and can’t walk very much. A blast from the hose that knocks them off is usually enough of a treatment. The links below talk about aphids, thrips and other hibiscus pests.
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/pests-on-hibiscus-plants.htm ^[1]

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