I have read used coffee ground, Diluted black coffee and fish emulsion are good fertilizer. Can I combine diluted coffee and used coffee grounds? Also, can I use either with fish emulsion? What about baking soda, epsom salt. Hibiscus needs nitrate, some phosphorus, magnesium and potassium. Mine is dropping leaves and turning yellow. Plus dropping buds. No sign of any insects
You can. Iy can get, pretty, expensive feeding these plants in an organic way. They are very heavy feeders.
Make sure to feed them frequently to avoid any deficiencies. These articles will help:
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-fertilizing.htm
When I bought the plant it had many buds and now the buds dry out without blooming and the leaves are also turning yellow
Many things can trigger yellowing of leaves and most are environmental changes: lack of sunlight (needs 6+ hours of direct sun), pruning, too much fertilizer, sudden change of soil moisture content (dry or soggy soil), high temperatures and-or use of chemicals on the plant or nearby.
Buds drop can also happen for similar conditions: lack of water or inconsistent watering, not enough sunlight, transplanting, very hot temperatures (above 35C) or an infestation by thrips or aphids. The most common reasons are transplanting, lack of water and insects. However, I noticed that your plant was in shade when the picture was taken so make sure it gets at least 6+ hours of direct sunlight.
One plant is in full sun outdoors, and the other is in east window indoors.
Yellowing leaves are common with hibiscus. The plant inside probably isn't getting enough sun. This article will help pinpoint the issue outside:
The flowers wilt as soon as they open. We live in Phoenix AZ. It gets early morning sun
I suspect not enough water and fertilizer. Hibiscus needs daily watering when flowering.
Here is more:
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/how-to-care-for-hibiscus-plants.htm
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-fertilizing.htm
Braiding branches on a hibiscus. Is that a simple task
If you start them when they are young, yes. This article will help:
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/braided-hibiscus-trees.htm
It’s flowering just fine and I have been fertilizing weekly. Also watering daily same as usual.
Look for insects like spider mites with a magnifying lens on both sides of the leaves and branches.
THE PLANTS ARE OUTSIDE SUMMER AND FALL AND INSIDE WINTER THRU EARLY SPRING
Prune off no more than 1/3 of the plant in Spring, once you take it outside for the year. Do not prune in Autumn.
Here is an article that will help you to care for it:
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/how-to-care-for-hibiscus-plants.htm