Silver Edged Horehound (Marrubium)

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).

Zones	4 - 9
Advantages	Bee Friendly Deer Resistant Rabbit Resistant Fragrant Flower / Foliage Groundcover Evergreen Good Rockgarden Or Alpine Plant Adds Texture
Light Requirements	Full Sun
Water Tolerance	Low-Water
Mature Height	10" tall
Mature Spread	18" wide
Shipping Details	No longer available this season. Learn More…
SKU	HC016166

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
Associated SKUs	HC016166 HC014142 (Plant - 2.5" Pot) - Out of stock. HC015723 (Tray of 32) - Out of stock. HC017788 (Plant - 5" Deep Pot) - Out of stock.
Common Name	Silver Edged Horehound
Botanical Name	Marrubium rotundifolium
Zones	4, 5, 6, 7, 8, 9
Light Requirements	Full Sun
Flower Color	Silver
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	Waterwise
Advantages	Bee Friendly, Deer Resistant, Rabbit Resistant, Fragrant Flower / Foliage, Groundcover, Evergreen, Good Rockgarden Or Alpine Plant, 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.

Planting Guides

complete Planting Guide

Shipping

No longer available this season.

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat. The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

Perennials and spring-planted bulbs are shipped at the proper planting time for your hardiness zone. Perennial and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment and all items are shipping to the same address, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you have any questions, please call Customer Service toll-free at (800) 925-9387 or contact us by email.

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Over $100	15%

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