|I live in the Dallas/Fort Worth area and have planted 8 Monrovia Dwarf Burning bushes approximately 4 years ago. The plants are near a stockade fence, in a well drained area. While I admit that North Texas summers can be very hot, all of these bushes are watered 2-3 times a week in the summer via a sprinkler system. The problem is, these bushes have hardly grown at all since we planted them. The tallest one being no higher than 30 inches at this time. Is there a fertilizer or plant food, or other suggestion you can make which might get these plants stimulated to further growth? With the exception of 2 plants, they are all located on the north side of our property, which gets more than 8 hours of full sunshine during the day. Thank you.
Watering too often can promote disease problems and if the soil stays soggy wet roots will die back from lack of oxygen. It is better to give a good soaking once a week or even less often. Mulch on the soil surface also helps. You are on the plant's southern limit but I would try making the change in the watering schedule. Starting next March fertilize it with a turf fertilizer such as 15-5-10 or similar product sprinkling a half cup around each plant throughout a 5 foot circular area around each bush. Repeat every 4 weeks for three more applications.
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