Photo by Melody

PlantFiles: Yellow Archangel
Lamium galeobdolon subsp. montanum 'Florentinum'

Family: Lamiaceae (lay-mee-AY-see-ee) (Info)
Genus: Lamium (LAY-mee-um) (Info)
Species: galeobdolon subsp. montanum
Cultivar: Florentinum
Additional cultivar information: (aka Variegatum)

Synonym:Lamiastrum galeobdolon

4 vendors have this plant for sale.

11 members have or want this plant for trade.


6-12 in. (15-30 cm)

18-24 in. (45-60 cm)

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:
Sun to Partial Shade
Light Shade

Unknown - Tell us

Bloom Color:
Bright Yellow

Bloom Time:
Late Spring/Early Summer
Mid Summer

Grown for foliage

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

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

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Click thumbnail
to view:

By FlowerManiac
Thumbnail #1 of Lamium galeobdolon subsp. montanum by FlowerManiac

By naturepatch
Thumbnail #2 of Lamium galeobdolon subsp. montanum by naturepatch

By philomel
Thumbnail #3 of Lamium galeobdolon subsp. montanum by philomel

By Happenstance
Thumbnail #4 of Lamium galeobdolon subsp. montanum by Happenstance

By Happenstance
Thumbnail #5 of Lamium galeobdolon subsp. montanum by Happenstance

By Happenstance
Thumbnail #6 of Lamium galeobdolon subsp. montanum by Happenstance

By MsMaati
Thumbnail #7 of Lamium galeobdolon subsp. montanum by MsMaati

There are a total of 8 photos.
Click here to view them all!


4 positives
1 neutral
No negatives

Gardeners' Notes:

Positive outdoorlover On May 4, 2011, outdoorlover from Enid, OK (Zone 7a) wrote:

This plants grows vigorously in our zone in full shade. It is nice to have a ground cover that is so pretty and grows in full shade. It is a very vigorous grower, but it can be pulled up easily once or twice a year when it exceeds it bounds.

Positive joan30157 On Apr 20, 2010, joan30157 from Dallas, GA (Zone 7b) wrote:

I love this plant. Mine is growing in very dry shade and it is thriving. It will tolerate our kids and very active dogs {Boxers} and never seems to have damage. I have it planted at the back of our property on the edge of the woods where the bunnies live and they do not seem to ever eat it. If they do it is not noticeable. Give it room it will spread quickly

Positive giftgas On Mar 15, 2009, giftgas from Everson, WA (Zone 7b) wrote:

One of the most invasive plants I've ever seen in my life...EVER, and I have EVERYTHING.

If something wants to live this badly, then perhaps I should let it...I think it's earned the right.

Positive PedricksCorner On Oct 15, 2008, PedricksCorner from Freedom, CA (Zone 9b) wrote:

This is a great little fast growing vine which can be used as either a hanging houseplant, hanging basket planter outside, or a groundcover. It will recover from being very wilted with very little or no evidence of damage. In a pot, if it gets too big, just pull out your shears and cut it down to about an inch or two and in a few weeks it will be back thicker than ever. Cute little Snapdragon like yellow flowers.

Neutral Baa On Jan 27, 2003, Baa wrote:

A vigorous cultivar that increases rapidly and can become invasive.

Has ovate to diamond shaped, toothed leaves that have a striking silver varigation with clear green margins. Bears bright yellow, two lipped flowers spotted with maroon-brown inside.

Flowers June-September

Loves a well-drained soil in a shady area.


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

Alameda, California
Amesti, California
Clayton, California
Fairfield, California
Knights Landing, California
Magalia, California
Chicago, Illinois (2 reports)
Newburgh, Indiana
Pinconning, Michigan
Lees Summit, Missouri
Staten Island, New York
Enid, Oklahoma
Osceola Mills, Pennsylvania
Emory, Texas
Alexandria, Virginia
Bellingham, Washington
Augusta, Wisconsin

We recommend Firefox
Overwhelmed? There's a lot to see here. Try starting at our homepage.

[ Home | About | Advertise | Media Kit | Mission | Featured Companies | Submit an Article | Terms of Use | Tour | Rules | Privacy Policy | Contact Us ]

Back to the top

Copyright © 2000-2015 Dave's Garden, an Internet Brands company. All Rights Reserved.

Hope for America