Drought Tolerant Gardening

Many folks wonder why we need to think about drought tolerant gardening in the “rainy” northwest. Interestingly, we receive only about 7 inches of our 40 inches total in the summer. In addition, more folks are moving here, straining our water resources for living while it is getting warmer (average temperature is up 1.5 degrees from 1920 to 2003) and while the snowpack that we rely on for summer water is decreasing. That lovely lawn needs 1 – 1 ½ inches per week while roses need about 2 inches per week. It doesn’t add up!
There are many watering systems and approaches that can make each gallon go farther. Drip watering and soaker hoses provide water just to the plants and reduce evaporation. Weather reading irrigation controllers, including some that adjust for plant and soil types as well as exposure, are more affordable and manage watering for effectiveness and efficiency while automating your watering. Watering deeply and less often is better for your plants, keeping them healthier and using less water. Besides reducing evaporation, mulch keeps plant roots cool and keeps weeds down. A double win! Rain gardens* are also effective in reducing overall watering needs and rain barrels harvest rainwater.

Improving your soil with compost provides nutrition and helps soil to retain moisture. Another double win! If you have areas where water runs off, using strategically placed rocks or boulders can slow it down and allow more of the water to be absorbed while providing a landscape feature. We have all heard that we need to plant the “right plant in the right place” and doing so will go a long way toward minimizing watering needs. Plants that need similar amounts of water can be grouped together, reducing your watering chores
and keeping your plants happy.
In the Northwest, we are fortunate that we have outstanding lovely natives that do well with rainy winters and dry summers since this is their native climate. There are so many options in addition to fir trees and rhododendrons. Once you start looking into our natives and the many drought tolerant plants that thrive in our nearly Mediterranean climate, you may decide that high maintenance lawn does not need to be quite so large!
Please visit these resources for more information:
- http://nativeplantspnw.com/
- *https://extension.wsu.edu/raingarden/






