Tip of the Week

When to Water

It can be tempting to water plants at the times they seem to need it most, when the sun is directly overhead in mid-morning or early afternoon. But because water evaporates during the day before it has been fully absorbed by plant roots, it's better to water in the evening just as the day cools down for the night. Long stretches of cooler temperatures give the water a chance to permeate the soil and make its way to the roots. Consequently, less water is wasted in evaporation. On the other hand, in very cool climates plants can develop fungal growth if they're damp overnight. Under these conditions, water early in the morning. The more water makes it to plant roots, the less you need to give them.

Find this, and 99 other simple tips for greener living, at National Geographic's True Green: 100 Everyday Ways You Can Contribute to a Healthier Planet. Pick up your own copy at National Geographic's online store.

© The Green Guide, 2008

| Email this post

Discuss this blog