The hibiscus flowers about every 10 days. It is on a watering drip system that I keep an eye on so it doesn't get too soaked. It gets at least 6 hours of sun each day.
It may not get enough direct light. Hibiscus grown in these conditions will exhibit nice green growth, but few flowers that make it to opening. Being right on the lower end of the light duration for the day, I would expect it to suffer just a little.
Other than that, you could test your soil for nutrient imbalances. This could be highly likely, as well. Testing your soil will confirm:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/light-requirements-for-hibiscus.htm
Not enough sun? Feeding it once a week..
Unfortunately, your photos did not come through, and you don't mention the results of a soil test or moisture meter.
It could be any combination of issues, unfortunately. These articles will help you to test the soil:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/test-soil-for-pests-and-diseases.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/making-sure-soil-drains-well.htm
This article will help you to know what care these shrubs require:
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-container-care.htm
I have a potted hibiscus plant on my deck . It gets about 5 hours of morning sun. The flower blossoms are beautiful and plentiful. However, lately some of the leaves have begun to partially dry up and turn brown. I\\\'m pretty vigilant about watering it. Is this a sign of over watering or under watering?
Unfortunately, your photos did not come through. It could be either! A soil moisture meter can help you to know when is a proper time to water. This will be when the soil dries, thoroughly, down to about 2 or 3 inches.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus
I live in RI. He didn’t pull it out of the ground but he cut all the stalks back to like 2 inches long!!! I’m so bummed. Do I need to do anything to ensure it grows again next year? Thank you!!
I assume it is a hardy hibiscus. It should put out new growth this year, and if there is time, it could bloom.
In any case, it will come back next spring. You don't need to do anything special.
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/outdoor-hibiscus-care.htm
Wow, is your web site informative! So glad I stumbled on to it. Anyway, I was reading about propagating Hibiscus cuttings and saw you should cover the cuttings with a plastic bag. However, it did not say for how long. So I was wondering how long you keep the cuttings covered for. Thank you.
I'm glad the website has been useful! I would keep the plastic on till roots form. It creates a greenhouse effect that can hasten rooting. You might have to open the bag every few days and let it air out if it seems like it is getting too much humidity. To check for roots, lightly pull on the plant. If it resists, roots have formed.
It doesn't look like a hibiscus, but a vine. Hard to tell what it is; do you still have the tags? It could be a honeysuckle, wisteria, trumpet vine, jasmine. Find out what it is, then you can care for it properly.
https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-6/zone-6-evergreen-vines.htm
https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-7/zone-7-jasmine-plants.htm
https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-7/vines-for-zone-7-landscapes.htm
Are used to miracle grow on my hibiscus and now it’s only producing foliage. I read on here that you can add phosphorus to help it start producing blooms again but I also read that it can be bad for your Hibiscus what do I use to add phosphorus and how much of it should I use please help
You can offset with superphosphoric acid. This will provide phosphorus in a way that will not disrupt anything too heavily. If you purchase one that is marketed as a "bloom booster" then it will have instructions for mixing. I would start with half the strength of those instructions. Work your way up in 2 weeks if necessary. If this is raw superphosphoric acid, then it will depend on the concentration.
Here are some more articles on Hibiscus care:
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus