Garden Yellow Archangel - Lamiastrum galeobdolon subsp. argentatum

Description

Often patch forming it is similar to the native Yellow Archangel (Lamiastrum galeobdolon subsp. montanum) but the naturalised plants of Garden Yellow Archangel (subsp. argentatum) have silvery markings on the leaves.  Flowers bright yellow with brownish markings, 17 to 21 mm long and borne in whorls on the upper half of the stem. Upper lip hooded the lower lip 3-lobed. The garden variety is rampant invader and can out-compete native flora, but is a useful garden nectar plant, particularly for long-tongued bees.

Similar Species

Lamiastrum galeobdolon subsp. galeobdolon

Identification difficulty
Recording advice

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Habitat

Usually found as an escape from cultivation, but not always close to habitation as it has proved capable of thriving in the wild. It may be seen in ditches and hedge banks.

When to see it

Flowering April to July.

Life History

A stoloniferous herbaceous perennial herb.

UK Status

Widespread in Britain, particularly in the north and west.

VC55 Status

Fairly frequent in Leicestershire and Rutland and probably increasing.

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Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map