Twin Oaks Valley Greenhouses
$2.25–$9.25Distance unavailable · 2245 North Twin Oaks Valley Road, San Marcos, CA 92069
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trefle.io · Taken Jul 29, 2021 by Jardin Des Cocagnous (cc-by-sa)
Lamiaceae
Pennyroyal
Mentha pulegium
Also known as Mentha pulegium subsp. vulgaris, Pulegium aromaticum var. album, Mentha pulegium var. hirtiflora, Mentha pulegium f. communis
Zones 4–10Sun Full SunWater ModerateCare Low
Indoor Plants · Edibles & Herbs · Native Plants · Herb · Mint · Aromatic · Medicinal · Ground Cover · Bee Friendly · Butterfly · Edible Herb · Repellent · Perennial
Pet-safeBeginner-friendlyAir-purifyingIndoorMedicinalAttracts pollinators
In stock at 1 nurseryStock updated 9/6/2026
Pennyroyal is a hardy, low-maintenance mint-family herb that grows well in moist, well-drained soil in full sun to partial shade. It spreads vigorously via runners, so growing it in containers or bordered beds is recommended to control its spread. The strongly aromatic foliage has traditional medicinal and insect-repellent uses, but note that pennyroyal oil is toxic in large quantities and should be used with caution.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water thoroughly until moisture drains from the bottom; allow the top inch of soil to dry between waterings · Every 5-7 days in growing season, reduce to every 10-14 days in winter
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 7–7.5
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed, Cutting, Division
Hardiness
USDA 4b-10b
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Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 12 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Albania, Algeria, Amsterdam-St.Paul Is, Argentina Northeast, Argentina Northwest, Argentina South, Austria, Azores, Baleares, Belarus, Belgium, Bulgaria, California, Canary Is., Cape Verde, Chile Central, Corse, Cyprus, Czechoslovakia, East Aegean Is.
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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