How to Grow Agastache Plants

growing agastache in the garden

Wondering how to grow agastache? Read on friends! Agastache (also known as Hyssop, Mosquito Plant and Mexican Bee Balm)is a gorgeous perennial plant. It’s known for its striking flowers and fragrant foliage. Not only is it a stunning addition to any garden, but it also attracts bees, butterflies, and hummingbirds. So if you want to add a burst of color to your landscape while supporting local pollinators, here’s everything you need to know about growing and caring for Agastache.

How to grow agastache: Location and Soil Preparation

Agastache thrives in full sun, so choose a spot in your garden where it will receive at least six hours of direct sunlight daily (most types are heat and drought-tolerant). This member of the mint family prefers well-draining soil with a slightly acidic to neutral pH level (between 6.0 and 7.0). Before planting, amend your soil with organic matter, such as compost or well-aged manure, to improve its fertility and drainage.

Planting Time and Technique

The best time to plant Agastache is in early spring after the last frost has passed. Or you can opt to plant in early fall, which gives the roots time to set up. Dig a hole that is deeper and wider than the root ball, place the plant in the hole, and backfill with soil. Gently press the soil around the base of the plant to eliminate air pockets, and water well.

How to Grow Agastache: Watering and Mulching

Agastache is drought-tolerant and requires moderate watering. Water the plant deeply once a week, or when the top inch of soil feels dry to the touch. It’s important not to overwater, as this can lead to root rot. To help conserve moisture, apply a 2-inch layer of organic mulch, such as shredded bark or straw, around the base of the plant, keeping it a few inches away from the stem.

Caring for Your Agastache

agastache garden


Agastache benefits from a balanced, slow-release fertilizer applied once in the spring and again in mid-summer. Follow the manufacturer’s instructions for application rates and methods. Avoid over-fertilizing, as this can lead to excessive growth and fewer blooms.


To encourage bushier growth and more blooms, pinch back the tips of the plants when they are about 6 inches tall. Remove spent flowers throughout the blooming season to encourage continuous flowering. In late fall or early winter, after the plant has gone dormant, cut back the stems to about 4 inches above the ground.

How to Grow Agastache: Pest and Disease Control

agastache garden

Agastache is relatively pest and disease resistant. However, it’s essential to maintain proper watering practices and well-draining soil to prevent fungal issues like root rot. If you notice any pests, such as aphids or whiteflies, use insecticidal soap or horticultural oil to control them.

Learning how to grow Agastache is a rewarding experience that adds vibrant color and valuable pollinator support to your garden. With the right location, soil preparation, and care, this stunning perennial will thrive in your landscape for years to come. By following these tips, you’ll be well on your way to creating a beautiful and pollinator-friendly garden.

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