How should an outdoor hibiscus be cared for in winter during freeze conditions?
Hardy hibiscus typically does not need any additional care in the winter. If the plantings are new, you can mulch around the base of the plant to ensure that the new planting establishes properly.
Trying for the first time to keep my tropical hibiscus through the winter. Should the plant be cut back? And does it need direct sun?
This article will help you: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/wintering-hibiscus-indoors-winter-care-for-hibiscus.htm
You can trim it back, but save any major pruning for spring. This article wil help with that: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/tips-for-pruning-hibiscus-plants-when-to-prune-hibiscus.htm
Need to keep in the groung and cut all the way down and cover with mulch,if it's to tall the branches freeze right into the root if it gets into teens and 20s,same with mandavilla vines ,angel trumpets etc. Anything tropical!
I have read your instructions on pruning hibiscus, and just want to know if they apply to all areas? I live in southwest Florida. I have one bush with yellowing leaves and buds falling off. It is very out of shape and I did cut it back a little in the spring.
Yes, it pretty much applies to all areas with a few exceptions. First, tropical types, which usually winter over indoors, can be trimmed up prior to bringing them inside in fall--though any hard pruning should wait till spring once returned outdoors. In your area and others like it where winters are generally mild, you can usually get by with pruning your outdoor hibiscus plants a bit and still be ok. However, I would still recommend that you trim a little for shape but hold off on any major pruning until spring, just in case you have an unexpected cold spell. This will offer a little protection to the plant.
It's mid October and my hibiscus are being infected by aphids. I have had a few in the past, but it seems that in the past week the plants are being covered by them. What can I do to stop them? Is there any type of systemic treatment I can do? Or is my only hope to spray and spray them? I prefer to use an organic remedy, but I'm not sure they will work. Please help.
This article will help: https://www.gardeningknowhow.com/plant-problems/pests/homemade-aphid-control-a-natural-way-to-kill-aphids.htm
This time of year, spraying the trees down with a pressured hose to knock the aphids off may be enough to get rid of them.
I live in Concord, NC and want to know if my hibiscus plants should be cut back for the winter and how far back I should cut them. Also, I would like to know when to cut my rose bushes back and how far back I should cut them. I also want to dig up and split my calla lilies and need to know when to do that.
It is better to wait for spring to prune hibiscus, unless you plan on bringing them indoors. Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/tips-for-pruning-hibiscus-plants-when-to-prune-hibiscus.htm
This article will help with your roses: https://www.gardeningknowhow.com/ornamental/flowers/roses/pruning-roses.htm
As for the calla lilies, it is best to wait until spring to dig up and divide the rhizomes. Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/bulbs/calla-lily/growing-calla-lilies-and-care-of-calla-lilies.htm
Do I have to dig my hibiscus up every year? I live in Spokane, Wa. Then, how do I winter over my Hydrangea and do I leave my burning bush in the ground?
Is it a tropical or hardy hibiscus? If it's hardy, then it can remain outdoors to Zone 5. If it's a tropical variety, however, you'll have to bring the plant indoors.
This article will help you with the hydrangea: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-winter-care-how-to-protect-hydrangeas-from-winter-cold-and-wind.htm
You can leave the burning bush in the ground.
My Hibiscus' leaves are curling under, as if they are going to be ball. What is wrong with it?
Generally, this is a sign of an insect infestation. Spider mites, mealy bugs, aphids, and whiteflies are common pests that affect hibiscus plants, sucking sap from them and resulting in anything from poor growth to leaf curl and drop. Thoroughly inspect the plant to see if this is indeed the problem and then treat as necessary. Here are some articles that you may find helpful: https://www.gardeningknowhow.com/plant-problems/pests/spider-mite-detection-and-spider-mite-natural-control.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/whitefly-control.htm
https://www.gardeningknowhow.com/plant-problems/pests/homemade-aphid-control-a-natural-way-to-kill-aphids.htm
https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm