Winter Care for a Hibiscus Bush
- Dig the hibiscus up, if it isn't in a pot already, and place it in a container large enough for its root ball. Hibiscus plants do not like cold weather, and will die if left out through the winter in cold-climate areas. If you live in a warmer area such as Florida, you won't need to move the plant, but you will need to wrap the plant up if a sudden cold snap develops. Hardy hibiscus plants are more likely to survive the cold weather than the tropical varieties.
- Cut the hibiscus back in the winter. These plants can grow quite big by the end of summer, but there's no need to care for the larger plant in the winter. Snip back as much as 1/2 of the hibiscus without damaging the plant as long as you leave some older leaves on the stems and a few stems of newer growth. Use pruning snips and make cuts at an angle near a notch in the limb.
- Hibiscus, like any other plant, needs light, and the closer you get them to a window, the better off they will be. Place them to receive southern sun, for the best results. When it's cold outside, the southern sun gives them extra warmth. If this isn't an option, any sunlight is better than none at all, even indirect light.
- Maintain an almost-dry soil when you first bring the hibiscus plant inside for the winter. When the soil becomes dry down to a depth of 1 to 2 inches, soak the plant. Place a plant saucer under the pot until it fully drains. Remove the saucer after the plant has drained; don't let the hibiscus sit in water. Start watering more frequently and maintain a mildly damp soil after the plant starts new growth closer to spring. If you brought the plant indoors, do not place them in front of or directly below vents, since this dries them out quickly. Cover the ground with mulch if you leave the plant outdoors to insulate the roots and ground from freezing weather.
Indoors
Pruning
Light
Water
Source...