Drought-tolerant perennials are popular these days, especially with those of you in the midst of a heatwave as we are here in Ontario.
Irrigation Systems
Even if you have an irrigation system, these hardy perennials should be a staple in your garden to avoid wasting your money on plants and water. Just be sure to place the hoses or plants (whichever you install last) strategically. For example, ornamental grasses do not appreciate wet feet. In fact, the quickest way to kill them off is to overwater them.
Read the Labels or Research to Find Drought-Tolerant Plants
One way to determine if plants (annuals or perennials) are drought resistant is to read the labels at the nurseries or stores where you purchase your plants. Some (larger) nurseries even have separate drought-tolerant sections to make your search easier. I have discovered asking nursery staff which plants are suitable is hit and miss.
Another more proactive plan is to research drought-resistant plants hardy to your garden zone before you head out the door to shop for plants.
Popular Drought-Tolerant Perennials in Ottawa (zone 4/5)
Here are a few of my favourite outstanding perennials that I rely on in my gardens for hot summer color:
- lavender
- Russian sage
- ornamental grasses
- tickseed
- stonecrop and sedum, available in multiple colors, great for hot borders
- daisies
If you haven’t already, consider adding some to your gardens. Just be sure to wait until the heatwave is over to do so!