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Herbs, Flowers & Specialty CropsMint Planting Calendar
Mint will grow almost anywhere, which is both its charm and its problem. A good calendar covers when to plant, how to contain it and when to renew a tired patch.
Key points
- Plant mint from divisions or plants in spring, or early fall in milder areas.
- Contain runners with a pot or buried barrier from day one.
- Harvest often, cutting above leaf pairs, to keep plants dense.
- Divide and renew beds every few years in spring or early fall.
When should you plant mint?
Mint is a hardy perennial that grows from divisions, cuttings or purchased plants far more reliably than from seed. Spring, once the soil can be worked and hard frost has passed, is the usual time to set out plants. Early fall also works in many areas if roots have time to settle before the ground freezes.
Check your average last spring frost and first fall frost through the National Weather Service or your county extension office. The USDA Plant Hardiness Zone Map tells you how cold winters get, but it does not give frost dates or planting dates, so use both pieces of information together.
If you start from seed, sow in a warm, bright spot indoors and expect variable plants, because many named mints do not come true from seed. Divisions and cuttings keep the flavor you chose.
Why is containing mint so important?
Mint spreads by underground and surface runners and can crowd out neighbors within a season or two. Most extension sources recommend growing it in a container, or in a bottomless pot or barrier sunk into the ground with the rim above the soil surface.
Even a pot can escape if runners reach the ground through drainage holes or over the rim. Set containers on a hard surface or lift and check them each season.
What kind of site and soil does mint like?
Mint grows in sun or part shade and prefers evenly moist, fertile soil. Afternoon shade helps in hot regions, and plants in full sun in dry soil tend to stress and decline. Use a soil test and your extension office's recommendations before adding fertilizer or lime, since needs vary and some states have nutrient management rules.
Good drainage still matters. Mint likes moisture but not standing water, which invites root diseases.
Mulching lightly keeps soil moist and leaves clean. Container mint needs more frequent watering than mint in the ground, and a bit of diluted feed during the growing season is common, guided by your soil test and local recommendations.
How do you harvest mint for the best flavor?
Begin cutting once stems are several inches tall, and take them just above a pair of leaves to prompt branching. Frequent harvest keeps plants compact and tender. Flavor is often strongest just before flowering, and flowers also attract many pollinators.
Cut back flowering stems if leaf quality drops. If you plan to dry or freeze mint, follow tested guidance from the National Center for Home Food Preservation or your extension office.
Young shoots are tender, but older stems stay useful for tea and cooking. Rinse and use mint soon after cutting for the best aroma.
When should you divide or renew a mint bed?
Mint beds often become woody and weak in the center after a few years. Dig the patch in spring or early fall, discard old woody sections and replant healthy pieces with roots into refreshed soil. This also lets you reduce a patch that has spread too far.
Do not compost runners in a pile that will go back on your garden unless you are sure the pile is hot enough to kill them. Bag or discard unwanted pieces.
Rotating the container contents or replacing potting mix every couple of years refreshes the roots and cuts down on pest and disease carryover.
What pests and diseases affect mint?
Rust and other leaf diseases can appear in humid weather, and several insects feed on mint. Good airflow, regular cutting and clean-up of old debris in fall reduce problems. Ask your extension office to identify an issue before you treat it.
If a pesticide is ever warranted, the label is the law, pre-harvest intervals apply and applicator licensing varies by state. Mint is a favorite of pollinators, so avoid applying products to flowers.
How do you overwinter mint?
Hardy mint dies back to the ground in winter and returns in spring. A light mulch over the crowns protects against freeze and thaw cycles in colder areas. In containers above ground, roots are more exposed, so move pots to a sheltered spot, sink them in the ground, or insulate them.
Cut dead stems back in late winter or early spring to make room for new growth, and check the plants for signs of disease before they leaf out.
Sources and further reading
Last reviewed: November 2026. Educational information, ranges only. Confirm timing with your county extension office.