Here's everything you need to know about watering container garden plants to ensure they grow to their best potential.
Every garden needs water to grow, but with a container’s small amount of soil, watering is vital for plants to look their best. But don’t overdo it, either. “Proper drainage is just as important as the amount of water added to the container,” says Andrew Holsinger, University of Illinois Extension horticulture educator. Follow these tips for watering your container plants.
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Soil Type Matters
Avoid using garden soil in containers because it won’t drain properly. Look for potting mixes that include vermiculite or perlite to help with drainage. And a good balance of organic matter, such as compost, will provide the nutrients that plants need.
Pick the Right Size Container
Choose your container based on what plants you want to grow. A variety of containers will work for growing vegetables and herbs, but size does matter. Some plants such as tomatoes need more soil to accommodate the root system, so go big. If you’re reusing a container from last year, disinfect it before planting. Always select a container with drainage holes on the bottom so the plants don’t become waterlogged.
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Container Materials Matter
Pay attention to the material your container is made out of. Non-porous and porous containers will affect the soil’s moisture level. Potting mix in clay, fabric, and unglazed ceramic containers will dry out sooner than in plastic or glazed pots, so you will need to water plants frequently.
How Often to Water Containers?
Make sure you check containers daily. Most plants need to be watered when half of the moisture is gone. Don’t wait until the soil is completely dry. Use a soil moisture probe or estimate by the feel of the soil. The container will also become noticeably lighter as it dries out. Water thoroughly until you see water drain out of the bottom. Here’s how to conserve water in your garden.
Try Automatic Watering Options
For busy gardeners, there are solutions available. Self-watering containers include a reservoir of water to lessen the frequency of watering. Drip irrigation provides just the right amount of water to container plants when it’s needed.
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Prevent Water Loss With Mulch
Limit how much and how often you need to water by mulching the top of a container. “I prepare my spring gardens with a good layer of mulch to help keep the ground moist after watering,” says field editor Jennifer Broadstreet Hess.
Psst—this is why organic mulch is best.
Keep a Watering Schedule
Water indoor plants on a schedule. “I water most plants every Monday, and succulents and cactuses are watered every two weeks,” says Birds & Blooms reader Megan Long.
Every Plant Is Different
“Follow watering instructions for each plant faithfully. Consult trusted resources if you’re unsure,” says reader Joanne Thomas.
For Precise Watering, Use a Kitchen Tool
“My favorite tool to water small pots or add water to flower arrangements is a turkey baster. It’s easy to control, see the volume and keep foliage dry,” says reader Nancy Hook.
Water Indoor Plants in the Shower
“I keep some of my houseplants in the bathroom. They love the humidity, and when it’s time to water them, I put them in the shower. The leaves get cleaned, and the pots can drain without making a mess,” says field editor Kathy Eppers.
