Mentha Species, Brook Mint, Horsemint

Menthalongifolia

Family
Lamiaceae (lay-mee-AY-see-ee)
Genus
Mentha (MEN-thuh)
Species
longifolia (lon-jee-FOH-lee-uh)
Synonym
Mentha spicata subsp. longifolia
Mentha spicata var. longifolia
Sun Exposure
Full Sun
Foliage
Grown for foliage
Herbaceous
Shiny/Glossy
Succulent
Height
36-48 in. (90-120 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Danger
Handling plant may cause skin irritation or allergic reaction
Bloom Color
Lavender
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Herbs
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
By dividing the rootball
From herbaceous stem cuttings
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Newport, New Hampshire

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Gardener's Notes:

3
positives
1
neutral
0
negative
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T
Newport, NH (Zone 5a) | September 2020 | positive

I have found Horsemint (Mentha longifolia) growing in Croydon, NH. in a small wet area around an old abandoned farm house. The patch of H...Read More

S
(Zone 6b) | January 2013 | positive

this is the most common mint in europe, west asia, north and south africa. also it presents a deep domain of segregation. i know some fla...Read More

P
Milton, DE | February 2010 | positive

Also known as "silver mint"

B
B
Baa
| January 2002 | neutral

Vigorous perennial mint from Europe through to Western Iran.

Has oblong, pointed, toothed,green grey, hairy leaves with a ...Read More

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