Growing guide · Perennials

Pycnanthemum incanum

How to grow Hoary Mountain Mint.

Every pollinator in the county, one plant.

Light
Full sun, part sun
Water
Low
Zones
4–8
Size
2–3 ft tall, 3–4 ft wide
Spacing
3 ft apart. It fills out to 3–4 ft wide.
Pets
Not pet-safe; keep out of reach
Hoary Mountain Mint

Light

Full sun to part shade. More sun means more silver and a tighter plant.

Water

Water weekly the first summer. After that it handles dry spells without help.

Planting and soil

Plant in spring or fall in average to lean, well-drained soil. No amendments needed.

Feeding

None.

Pruning

Cut back by a third in early June if you want a shorter, bushier plant. Leave the stems over winter and cut them down in early spring.

Through the year

New growth in spring. Silver bracts by early summer. Blooms July into September. Seed heads through winter.

If something's off

Few problems. In rich, wet soil it flops and spreads faster; pull runners at the edge in spring to keep it in bounds.

Plays well with

Plant it with friends.

Aromatic Aster 'October Skies'
Symphyotrichum oblongifoliumAromatic Aster 'October Skies' from $21.99
Prairie Blazing Star
Liatris pycnostachyaPrairie Blazing Star from $21.99

Dusted silver, mobbed by bees.

An eastern native mint whose top leaves look brushed with frost, setting off small lavender-tinged white flowers from summer into fall. It draws more kinds of bees and wasps than almost anything else you can plant. The leaves smell strongly of mint, which is why deer leave it alone.

Why we stock it: The silver top leaves look good for months, and the pollinator traffic beats anything else in the bed.

Hoary Mountain Mintfrom $21.99 · Arrives alive, or we replace it