Photo of Marrubium incanum flower by Karl Gercens III

Photo by Karl Gercens III

Used with permission, all rights reserved

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Marrubium incanum

Also Known As

  • Silver Horehound

Plant type

shrub, herb

size

  • H: 18"-24"
  • W: 15"-18"

planting zones

  • 3a-9b

More Options

Marrubium incanum plant details

Marrubium incanum is a broadleaf evergreen herb or shrub with blue foliage. In summer white flowers emerge. Features fuzzy texture. Attracts bees and beneficial insects making it an excellent addition to pollinator gardens. Grows well with sun and low water. Drought tolerant once established. Does well in average and well-drained soil. A good option if you're seeking something heat tolerant.

CHARACTERISTICS OF Marrubium incanum

Plant type: herb or shrub
Plant family: lamiaceae
Foliage: evergreen blue
Mature size: 15 IN - 18 IN - wide, 18 IN - 24 IN - tall
Flowers: white blooms in summer
Uses: fragrant foliage, long-blooming, medicinal, rock garden, year round interest

GROWING CONDITIONS for Marrubium incanum

USDA Zones: 3a - 9b
Sun exposure: sun
Watering frequency: low
Resistant to: heat
Soil needs: average and well-drained

Nursery contributed plant descriptions

Upright perennial herb with white flowers for 2-3 months in summer..tolerates drought..gray wooly leaves..used in cough lozenges..teas for colds.

Gardening facts about Marrubium incanum plant

How to Grow Marrubium incanum

  • Sun Exposure

    • sun
  • Water Needs

    • low - drought tolerant
  • Soil Needs

    • average
    • well-drained
  • Special Situation

    • heat tolerant

Features

  • Foliage Color

    • blue
  • Flower Color

    • white
  • Wildlife

    • beneficial insects
    • bees
  • Flower Season

    • summer
  • Foliage Season

    • evergreen
  • Texture

    • fuzzy
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