Guide to Sustainable Growing

• Get step-by-step guidance: Build a Rain Garden

Traditional sprinklers waste a lot of water, much of it through evaporation or runoff. Columbia’s efficient irrigation rebates offer smart solutions with qualifying tools:

• Smart Irrigation Controllers: Smart irrigation controllers automatically adjust the watering schedule based on local weather data and soil, grass and plant types to improve water use efficiencies. Replacing a standard clock timer with a WaterSense-labeled irrigation controller can save an average home nearly 7,600 gallons of water annually. Available Rebate: $25 per zone or 75% of the total installation cost, whichever is less, with a maximum rebate of $150.
• Rain Sensors: Irrigation rain sensors are a great device to increase your water efficiency efforts. This device can be installed anywhere in your home where rainwater would be most accessible. Rain sensors can be installed to your existing irrigation controller or enhance your new smart irrigation controller—available Rebate: up to 50% of the cost with a maximum of $50. 
• High-Efficiency Sprinkler Heads: High-efficiency sprinkler heads are an excellent way to conserve water and save money. High-efficiency sprinkler heads have a slow application rate, evenly distributing water throughout the irrigated area. This increased efficiency results in 30% less water use when compared to traditional sprays. These nozzles are affordable and low-maintenance—available Rebate: $5 per sprinkler head (minimum of six). 

Take advantage of these rebates today: Rebate Page

Water conservation isn’t just about what’s happening indoors. Outdoor water use can spike in the warmer months—but there are simple ways to cut back without sacrificing your landscape.

A few quick tips:

• Water early or late in the day to minimize evaporation.
• Group plants with similar water needs to avoid overwatering.
• Use mulch to lock in moisture and keep soil temperatures stable.
• Install water-efficient irrigation systems.

More outdoor water-saving ideas: Outside Water Conservation

Not every resident owns their yard, but that doesn’t mean you’re shut out from sustainable gardening. Here are a few renter-friendly ideas:

• Container gardening: Grow herbs, veggies, or pollinator plants in pots on a porch, patio, or balcony.
• Skip the chemical fertilizers and pesticides: They can harm local waterways and wildlife—and many container plants don’t need them.
• Join a community garden: Columbia has several options for shared growing space.
• Collect rainwater: Even a small barrel or bucket can go a long way for watering your plants naturally.

Sustainability doesn’t have to be complicated or expensive. Whether you’re letting your lawn go a little natural, installing a rain garden, or simply watering more efficiently, every action adds up. Let’s make our landscapes work for us—for our environment and our community.