Hi, MB, If your mandevilla is still growing over winter, I wouldn’t trim it unless it gets too large or unwieldy for the space. I recommend pruning for shape in spring and removing any dead or lackluster stems. Like many plants, pruning will produce a bushier form with dense stems and foliage.
All plants brought indoors need to be watered over winter, but the frequency is far less than when they were active and growing outdoors. Plants brought inside are often accidentally forgotten about. If the soil dries to the point that no water is available to the plant, the plants can die just as they would at other times. Check with your finger and feel the soil moisture as deeply as possible. If it feels slightly moist or damp, the plant is fine. If the soil feels dry, give it a good watering. In spring, as the plant picks up growth, you can increase the watering frequency and begin fertilizing again.
Hi, MB, If your mandevilla is still growing over winter, I wouldn’t trim it unless it gets too large or unwieldy for the space. I recommend pruning for shape in spring and removing any dead or lackluster stems. Like many plants, pruning will produce a bushier form with dense stems and foliage.
All plants brought indoors need to be watered over winter, but the frequency is far less than when they were active and growing outdoors. Plants brought inside are often accidentally forgotten about. If the soil dries to the point that no water is available to the plant, the plants can die just as they would at other times. Check with your finger and feel the soil moisture as deeply as possible. If it feels slightly moist or damp, the plant is fine. If the soil feels dry, give it a good watering. In spring, as the plant picks up growth, you can increase the watering frequency and begin fertilizing again.