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Pollinate Happiness
Native to the Northeast, the Mid-Atlantic, the Southeast, and beyond

Clustered mountain mint

Pycnanthemum muticum

Consistently rated the top pollinator plant in Northeast trials: wasps, bees, flies, and butterflies by the hundreds.

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Scale and context

One plant, several views

Plant 2–3 ft. Flowers ⅛ in in ½-in heads; the silvery leaves around them are 1 in. These photos are all one individual, photographed in County Road 4777, Warren, TX, US in July 2021, so you can see how a close-up relates to the whole plant.

Who it feeds

In the Mt. Cuba Center pollinator trials, clustered mountain mint attracted more insect species and individuals than any other plant tested: bees, wasps, flies, beetles, and butterflies by the hundreds. The predatory wasps it draws control garden caterpillars.

What it does for the place

A pollinator hub that also repels deer and rabbits, tolerates drought once established, and spreads into a manageable clump.

The story

A mint-family native of eastern meadows with silvery bracts that make the whole plant look frosted in July. Indigenous peoples used it as a seasoning and a fever tea; the leaves smell strongly of spearmint.

Worth knowing

  • Rub a leaf on your skin; it is a traditional mosquito repellent.
  • The bracts are silver because of a waxy coating that reflects light.
  • It grows in mountains and meadows alike; the name is misleading.

Saving its seed

Ripe: Oct, Nov. Dry flat heads shed tiny seed when tapped.

Collect: Shake heads into a bag; sift.

Sow: Winter-sow outdoors (jugs or flats) any time after the first hard freeze. Needs about 30 days of cold-moist stratification. Surface sow; needs light.

Seed saving calendar for your zip code →

Plant it instead of

  • Mugwort: The gray-green weed that takes over every disturbed lot, roadside, and garden bed on Long Island, spreading by rhizomes and suppressing neighbors chemically.

Sources and further reading