Though bordered by oceans, Florida is estimated to need an additional two billion gallons of water each day by 2025. Rainwater harvesting can help keep gardens green even when rain is scarce.

Rain gardens are used to slow storm runoff, allowing it to seep into the ground. Planted in a depression to collect water flowing from a source such as a driveway or sump pump, rain gardens have deep-rooted plants and grasses hardy enough to withstand extremes in moisture and nutrients. The plants filter excess sediment, nitrogen, and phosphorous making the water easier for surrounding plants to absorb.

Rain barrels are a popular method for collecting rainwater, usually from a building’s downspout. Use food grade materials and select barrels with a lid to discourage mosquito larvae. It is also wise to provide for overflow, directing excess water away from the building’s foundation.

Cisterns can range from large in-ground tanks and a pump for distributing collected water to small decorative above-ground tanks that can be placed beneath a water source such as the eaves of a corrugated porch roof. 

Whatever method you favor, check state and local laws for any regulations pertaining to the collection of rainwater in your area.