Should U deadhead mature outdoor hibiscus plants? If so, how?
The flower turns brown and falls off leaving the beginnings of a seed pod behind. If you can clip or snap off the greenish bracts that hold the flower and hide the early seed pod, do so. Sometimes there is another flower on the same stem, occasionally 3. Wait until they are all done and snip the stem where it meets the main plant. Don't remove any leaves.
I was given 2 large bags of hibiscus fertilizer. What other plants can this be used on besides hibiscus? Thank you.
You can use it on just about anything that requires lots of nitrogen and potassium. These are taken up quick by the hibiscus, so they need more of it than usual. When you use it, just be on the lookout for phosphorus deficiencies. This is not likely to happen, but can in plants that have a need for more phosphorus.
Please can you tell me what is wrong with my hibiscus and how I can treat it?
Inadequate soil volume (insert pot is too small for the size of the plant), water issues (too little, or if the outer pot does not have drainage, then the inner pot may be sittinging in water and causing root rot) nutrient deficiencies, pest infestation (possible caterpillars).
Re-pot into larger container with good drainage. Avoid an outer pot that doesn't let you monitor and avoid standing water. Use a nutrient rich organic potting soil and fertilize with a mineralized complete organic fertilizer.
Water appropriately. Pest problems should minimize when you get the soil and water management right. Consider preventive applications with 70% neem oil.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm
When to cut hibiscus plants after winter weather. And how to cut them?
I have just the article for you here: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/tips-for-pruning-hibiscus-plants-when-to-prune-hibiscus.htm
The plant next to it is doing well.
This cultivar may consume nutrients faster than normal. They are already very heavy feeders, requiring consistent fertilization. This article will give you more information on these: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/how-to-care-for-hibiscus-plants.htm
THANK YOU FOR TELLING ME TO CUT BACK MY TREE I FOOT ABOVE GROUND --- I LIVE IN EAST CENTRAL FLORIDA - 32796 - IS NOW END OF MARCH -- IS THIS THE RIGHT TIME TO DO THIS? WHAT SHOULD I EXPECT TO HAPPEN ONCE I DO THIS ? - ALSO -- THE TOP THAT I AM CUTTING OFF IS BEAUTIFUL --- IS THERE A WAY TO ROOT IT SO IT WILL ALSO BECOME A BUSH ? - IF POSSIBLE,WHAT SHOULD I EXPECT ONCE I LIGHTLY SCORE IT -- WET IT -- DIP IT IN ROOT POWDER --- CAN I PUT IT IN THE GROUND ? WILL IT GROW INTO A TREE? --- HOW LONG BEFORE IT FORMS ROOTS? WILL IT HAVE THE SAME FLOWERS ? - THANK YOU VERY MUCH FOR YOUR HELP, DVORABIALO@GMAIL.COM
These articles will help you.
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-propagation.htm
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/tips-for-pruning-hibiscus-plants-when-to-prune-hibiscus.htm
I have a roselle plant fruiting, but it died suddenly. Two similar plants died suddenly in another plot.
Can you include photos? This can have many causes, but it would be hard to know without seeing what happened. Do you know, exactly, which cultivar that it was? Some are not full sun tolerant. Were these in shade or sun? What are the temperatures like in your area right now?