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PlantFiles: Yellow Archangel
Lamium galeobdolon 'Silver Spangled'

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Family: Lamiaceae (lay-mee-AY-see-ee) (Info)
Genus: Lamium (LAY-mee-um) (Info)
Species: galeobdolon (gay-lee-OB-doh-lon) (Info)
Cultivar: Silver Spangled
Additional cultivar information: (aka Silver Spangles, Silver Spangle)

Synonym:Lamiastrum galeobdolon
Synonym:Galeobdolon luteum

2 members have or want this plant for trade.

Category:
Perennials

Height:
6-12 in. (15-30 cm)

Spacing:
18-24 in. (45-60 cm)

Hardiness:
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
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)

Sun Exposure:
Light Shade

Danger:
Unknown - Tell us

Bloom Color:
Bright Yellow

Bloom Time:
Late Spring/Early Summer
Mid Summer

Foliage:
Grown for foliage
Herbaceous
Variegated

Other details:
Average Water Needs; Water regularly; do not overwater
May be a noxious weed or invasive

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:
Unknown - Tell us

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From herbaceous stem cuttings
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds

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By Gabrielle
Thumbnail #1 of Lamium galeobdolon by Gabrielle

By Gabrielle
Thumbnail #2 of Lamium galeobdolon by Gabrielle

By Gabrielle
Thumbnail #3 of Lamium galeobdolon by Gabrielle

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Thumbnail #4 of Lamium galeobdolon by WaterCan2

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Thumbnail #5 of Lamium galeobdolon by WaterCan2

Profile:

3 positives
No neutrals
1 negative

Gardeners' Notes:

RatingAuthorContent
Positive DonnaMack On May 4, 2012, DonnaMack from Elgin, IL (Zone 5a) wrote:

I moved into a house in which other invasives ran wild, but I only have a handful of these plants. I must have a type that is not invasive.

Negative jimothewoods On Mar 14, 2012, jimothewoods from Sedro Woolley, WA wrote:

This plant in our area of Western Washington is insidiously invasive and should not be used or sold. Many populations now spreading through our woods came from hanging baskets that were dumped after everything else in the basket had died. It crowds out other low growing native vegetation.
Round-up kills it but it probably will require two applications because small bits may survive.

Positive djehmli On Aug 3, 2008, djehmli from Saginaw, MI wrote:

Planted as seedling on side of house facing east.

Watering is limited purely from rain water. Three years later plant is 2x2 in size. It is not invasive at this time.

Positive Gabrielle On Feb 6, 2006, Gabrielle from (Zone 5a) wrote:

A good shade plant with interesting foliage for dry areas. Not as invasive as some forms of Lamium. In fact, in my experience, it stays in a nice clump. Blooms in May-June in my garden.

Regional...

This plant has been said to grow in the following regions:

,
Elgin, Illinois
Washington, Illinois
Saginaw, Michigan
Delano, Minnesota
Selden, New York
Columbus, Ohio
Williamsburg, Ohio
Green Bay, Wisconsin



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