How to Grow Peppermint
Mentha × piperita
Peppermint is a fragrant herb prized for its refreshing flavor in teas, candies, and culinary dishes. Gardeners cultivate it for its ease of growth and ability to thrive in partial shade or full sun while producing abundant leaves year-round.
📷 Wikipedia: HerbStarting Peppermint: indoors or direct sow?
🌾 Sow directly in the garden — Peppermint is not usually started indoors.
Do not transplant seedlings before the last frost; wait until soil is warm enough outdoors to plant directly or move hardened-off starts.
Soil, care & harvest
Prepare moist, well-draining soil with a pH between 6.0 and 7.5. Unlike cool-season crops, you must wait until after the last spring frost when the soil is warm, as cold temperatures will kill this plant. Sow seeds directly or start indoors; germination takes 10 to 21 days once conditions are right.
Space plants 12 to 18 inches apart to allow airflow and prevent overcrowding. Keep the soil consistently moist with about 1 to 1.5 inches of water weekly, but avoid waterlogged roots. Apply mulch to retain moisture and feed lightly if growth slows during the season.
Watch for aphids, spider mites, flea beetles, and mint root borers; encourage beneficial insects or hand-pick pests early. Prevent rust and powdery mildew by ensuring good air circulation and avoiding overhead watering. Harvest leaves 60 to 90 days after sowing when stems are mature and fragrant.
When to Plant Peppermint
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
| Zone | Start Indoors | Direct Sow | Harvest |
|---|---|---|---|
| Zone 1 | April – May | June – July | August – September |
| Zone 2 | April – May | May – July | July – September |
| Zone 3 | March – April | May – June | July – October |
| Zone 4 | March – April | April – June | June – October |
| Zone 5 | February – March | April – May | June – November |
| Zone 6 | February – March | April – May | June – November |
| Zone 7 | February – March | March – May | May – November |
| Zone 8 | January – February | March – April | May – December |
| Zone 9 | January | February – March | April – December |
| Zone 10 | January | January – March | March – December |
| Zone 11 | January | January – February | February – December |
| Zone 12 | January | January – February | February – December |
| Zone 13 | January | January – February | February – December |
Companion Plants for Peppermint
✓ Good companions
Repels cabbage worms, aphids, and other brassica pests
Deters cabbage moths, aphids, and flea beetles while improving cabbage flavor
Different root depths prevent competition and carrots may improve soil structure
Repels carrot flies and aphids while attracting beneficial predatory insects
Attracts beneficial wasps that prey on cabbage worms and aphids
Deters aphids, cabbage loopers, and other brassica pests with strong scent
Deters slugs, aphids, and flea beetles that commonly damage lettuce leaves
Provides ground cover, conserves moisture, and has similar growing requirements
Both plants repel similar pests and create a strong aromatic barrier against insects
Repels flea beetles and nematodes while attracting beneficial insects
Acts as trap crop for flea beetles and aphids, protecting turnip leaves
Repels root maggots and cabbage worms that commonly attack brassicas
Quick-growing companion that loosens soil and may deter root flies
Mint helps deter flea beetles and root maggots that damage radish crops
Repels aphids, ants, and rodents while attracting beneficial pollinators
Peppermint repels ants, aphids, and flea beetles that commonly attack tomato plants
✗ Keep away from
Mint's vigorous root system and allelopathic compounds can inhibit chamomile growth
Peppermint's rapid spreading can crowd out cilantro and reduce its seed production
Peppermint's aggressive spreading nature can overwhelm and outcompete parsley plants
Both are heavy feeders competing for nutrients, may inhibit turnip root development
Allelopathic compounds can inhibit brassica growth and development
May stunt turnip growth and compete for nutrients, different pH preferences
Nutrition Facts
Per 100g serving (USDA FoodData Central)
