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Herbaceous Perennial

Lamium galeobdolon 'Florentinum' (v)

yellow archangel 'Florentinum'

A deciduous perennial to about 60cm tall, with creeping stems that forms mats of green leaves strongly marked with silver variegation, the leaves purple-tinged in cold weather. In early summer, flowering stems bear whorls of hooded, yellow flowers in the leaf axils

Synonyms

Lamium galeobdolon subsp. montanum 'Florentinum'
Galeobdolon luteum 'Variegatum'
see moreLamium galeobdolon 'Variegatum'
Galeobdolon argentatum
Lamiastrum galeobdolon subsp. argentatum

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Ultimate height

0.5–1 metres

Time to ultimate height

2–5 years

Ultimate spread

0.5–1 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained, Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full shade
Partial shade

Aspect

East–facing or North–facing or West–facing

Exposure

Exposed or Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Lamiaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Matforming
Genus: Lamium can be annuals or, more usually, perennials, with coarsely toothed ovate leaves and 2-lipped, tubular flowers borne in whorls forming a short spike
Name status: Accepted

How to grow

Cultivation

This plant is listed on Schedule 9 of the UK Wildlife & Countryside Act as an invasive non-native species. Although not banned from sale, it is an offence to plant or cause these to grow in the wild IN ENGLAND AND WALES. Gardeners possessing them should undertake measures to control them. See RHS advice on invasive non-native species for further information

Propagation

Please see cultivation notes

Suggested planting locations and garden types

Pests

Generally pest-free

Diseases

Generally disease-free

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