Winter Care for an Agastache Plant


Members of the Agastache family are perennials. They are versatile and mostly quite hardy in USDA Hardiness Zones 5 to 10. In addition to being low-maintenance perennials, Agastaches are coveted by gardeners because they attract hummingbirds and butterflies. Several balms, mints and hyssops are members of the Agastache family. Winter care for these plants in Hardiness Zones 5 through10 is nearly as simple as care during the growing season. Unless your area gets very cold in the winter, the less you do, the better off your plants will be.

Step 1

Avoid clipping or cutting back your Agastaches once they start to turn brown and go into their dormant phase at the beginning of winter. You can safely completely ignore the plants at this point. Also, skip fertilizing and watering once they go dormant. Like many plants, Agastaches do not like to be fertilized or watered at this time.

Step 2

Go about your daily business paying as little attention as possible to your Agastaches. Keep an eye on the weather, however. Mulch your Agastaches only if the weather will be below zero for long periods of time. Mulch to a depth of 2 to 3 inches. Do not water at any point during the mulching process.

Step 3

Remove the mulch as soon as the weather warms up to around freezing. Contrary to how some other plants react, Agastaches thrive on "tough love," such as relatively harsh winters.

Things You'll Need

  • Mulch (optional)


  • Defining Your Home, Garden, and Travel: Accolades for Agastache
  • Carolee's Plants and Gifts: Amazing Agastaches
  • High Country Gardens: Agastache; "Super Stars" of the Perennial World

Who Can Help

  • Dave's Garden: Family: Lamiaceae, Genus: Agastache
  • United States National Arboretum: USDA Plant Hardiness Zone Map
Keywords: agastache winter care, overwintering agastache plants, hummingbird butterfly gardens

About this Author

Amrita Chuasiriporn is a professional cook, baker, and writer. In addition to cooking and baking for a living, Chuasiriporn has written for several online publications. These include Chef's Blade, CraftyCrafty, and others. Additionally, Chuasiriporn is a regular contributor to online automotive enthusiast publication Chuasiriporn holds an A.A.S. in culinary arts, as well as a B.A. in Spanish language and literature.