Sandy soils require more frequent watering. Heavy soakings at weekly intervals are better than many light soakings as light, frequent waterings promote shallow root systems. Mulching reduces water loss from the soil. Weed Control Weeds compete with pepper plants for sunlight, nutrients and water. In the average home garden, weeds are best controlled with cultivation or mulches.
Mulches help keep weeds down, reduce water loss and stabilize soil temperatures.
Inorganic mulches, such as polyethylene, are available in many garden stores. Organic mulches should be at least 2 inches deep and preferably 3 to 4 inches deep. Mulching the soil too early in the season with organic mulches keeps the soil cool, resulting in slow growth and poor fruit set. It also can cause shallow rooting. Inorganic plastic mulches, however, increase soil temperatures and promote earlier growth and production.