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Marrubium rotundifolium

Silver Edged Horehound

Silver Edged Horehound is one our very best xeric groundcovers for poor soil areas with hot, sunny growing conditions. The soft felted leaves are green with a bright silver underside that curls up to give the leaves a silver edge. Drought resistant/drought tolerant plant (xeric).
Zones4 - 9
Advantages
Deer Resistant
Bee Friendly
Rabbit Resistant
Fragrant
Groundcover
Evergreen
Rock Gardens
Adds Texture
Light Requirements
Full Sun
Annual Rainfall
10 to 20"
20 to 30"
30 to 40" (with care)
Mature Plant Size10" tall 18" wide
ShippingNow shipping to zones 8-10.
Other zones shipping soon.
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SizeNo
SKUHC016166

USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

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SKU
HC016166
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Details
2009 Plant Select Winner 10" tall x 18" wide (cutting propagated). Native to high, dry areas of Turkey, this is sure to become a very popular addition to the Western xeric garden. The soft felted leaves are green on top and edged in white with the backs of the leaves also wooly white. The flowers are insignificant and should be sheared off to expose the evergreen, ornamental foliage. A vigorous grower, this plant does well in lean, well-drained soils, requiring little water once established. NOT RECOMMENDED for planting in regions with HOT, HUMID summer weather; the wooly foliage will "melt" from the humidity. A fine groundcover for underplanting Caryopteris 'First Choice' (where it will accentuate the gray-green foliage) and blue or gray leafed grasses and perennials, to add contrasting texture and color. Can tolerate occasional foot traffic.

Flat of 32 plants will cover 48 square feet when planted together

More Information
SKU
HC016166
Common Name
Silver Edged Horehound
Botanical Name
Marrubium rotundifolium
Zones
4, 5, 6, 7, 8, 9
Light Requirements
Full Sun
Height
12 inches
Mature Height
10" tall
Mature Spread
18" wide
Ships As
Potted Plant
Soil Type
Sandy Soil, Average Soil, Low Fertility Soil, Well-Drained Soil
Soil Moisture
Drought Resistant / Waterwise
Amount Of Rain
10 to 20", 20 to 30", 30 to 40" (with care)
Advantages
Deer Resistant, Bee Friendly, Rabbit Resistant, Fragrant, Groundcover, Evergreen, Rock Gardens, Adds Texture
Awards
Plant Select
Ideal Region
West, Western Only, Southwest, Hot Desert
Planting Time
Spring / Summer, Fall
Neonicotinoid Free
Yes - Learn More
Ships To Canada
No
Planting Guides
Marrubium (Horehound) - a large group of flowering plants native to the Old World (North Africa, Europe and Asia). Some have showy flowers while others are grown for ornamental foliage. Resistant to browsing deer and rabbits.

Preferred growing conditions
  • Plant in a fast draining, infertile soil with full sun. In arid climates, it can be grown in dry clay. Mulch with gravel, pine needles or not at all.
  • Water regularly the first growing season to establish the plant. Thereafter, infrequent but deep watering is all this plant needs.
  • Deadheading recommended to prevent re-seeding and keep the ornamental foliage fresh and tidy looking after flowering is done.
  • Fertilize lightly in the fall with Yum Yum Mix.

    • Special comments
  • Cut back to green stems in early to mid-spring.
  • These are low care perennials that don't like rich soil or a lot of water; this makes the plants leggy, prone to flopping and can shorten their lifespan; grow hard and on the dry side.
    • View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.
Shipping
ZoneShipping Status
Zone 2Shipping begins the week of May 20th, 2019
Zone 3Shipping begins the week of May 20th, 2019
Zone 4Shipping begins the week of May 20th, 2019
Zone 5Shipping begins the week of April 29th, 2019
Zone 6Shipping begins the week of April 15th, 2019
Zone 7Shipping begins the week of April 1st, 2019
Zone 8Now Shipping
Zone 9Now Shipping
Zone 10Now Shipping
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