How Much Water Can an Indian Hawthorn Bush Require?

Water Requirements

• Proper watering ensures that any plant does well in heat, cold and other types of adversity. Indian hawthorn prefers moist, well-draining soil. It puts up with sandy soils, which drain well, but may not hold moisture adequately during hot summer months, so be vigilant about watering during hot spells. Once established, the plant tolerates some drought. It even withstands salt spray and is therefore a good choice for gardens along the coast or next to the beach.

Preventing Disease

• Indian hawthorn is susceptible to leaf spot, usually caused by the fungus Entomosporium maculatum. Because this disease can cause massive leaf drop and eventually death if it is bad enough, leaf spot is not just a cosmetic matter. To reduce the chance of your Indian hawthorn developing the disease, do not water overhead unless you do so in the middle of the day; during cooler times, water evaporates more slowly, giving the infection a chance to take hold. Also avoid overhead watering where water can splash onto other plants and during wind, because these factors can spread disease.

Other Considerations

• Developing a deep root system is key to healthy plants. Water your Indian hawthorn deeply, to a depth of about 6 inches, every time the top inch dries out completely. Do not give it more frequent, lighter waterings, because this encourages the development of shallow roots, which cannot hold moisture as well or access deeper water reserves. Refrain from planting the shrub near trees with high water needs, as they may outcompete it. Before possible cold snaps and during heat waves, ensure proper, deep watering to avoid leaf scorch from drying summer heat and winter wind.

Culture

• In addition to consistent moisture and well-draining soil, Indian hawthorn appreciates full sun. It is a tidy shrub that doesn’t usually need pruning, but if you decide to trim it, do so after it has finished its blooming cycle. Toward the lower end of its hardiness range, protect Indian hawthorn from cold weather by mulching its roots with leaves or another insulating substance or covering.