Lamium 

(laa' mee-um)

Common name: Spotted Deadnettle

Family: Lamiaceae, Mint

Height x width: 8-12" x 24-36"

Growth rate: moderate to fast

Foliage: stoloniferous square stems, opposite ovate and bristly hairy leaves, wavy to toothed margin, usually variegated white, or with white midrib

Flowers: mauve-pink to white, hooded, ½-1" long, in whorls on short spikes above foliage, late spring to early summer

Hardiness: zones 3-8

Soil: moist, well-drained

Light: shade

Pests and Problems: leaf scorch from full sun and insufficient moisture, purplish fungal leaf spots, stem rots from excessive wetness

Landscape habit, uses: groundcover for shade

Other interest: native to Europe and N. America; genus name from the Latin name used by Pliny

Other culture: may become straggly in zones 7-9 or in dry shade, in which case cut back; in ideal situations may be quite vigorous

Propagation: cuttings, division

Species:

album (al' bum)--White Dead Nettle, zones 4-8, more upright than maculatum with pointed and sharply toothed leaves similar to galeobdolon but white bell-shaped flowers

galeobdolon (gal-ee-ob' do-lon)--Yellow Archangel, formerly known as Lamiastrum galeobdolon or Galeobdolon luteum, zones 4-8, 9-15" tall, native to Europe and W. Asia, yellow flowers, leaves slender pointed and serrate

maculatum (ma-cue-laa' tum)--Spotted Nettle, flowers and leaves as described for genus, main species of cultivars

orvala (or' va-lah)--upright clump to 18" tall similar to 'Herman's Pride', red to purple axillary flowers
 
 

Cultivars:

Those marked * are the most popular in U.S. commerce.
 
Cultivar species foliage, habit, other
'Album' maculatum silver mid stripe, white flowers
'Album' orvala white mid stripe, white flowers
'Ann Greenaway' maculatum chartreuse/green/silver, pink flowers
'Aureum' maculatum soft yellow with white mid stripe, light pink flowers
*'Beacon Silver' maculatum silver with green margins, pink-purple flowers
*'Beedham's White' maculatum chartreuse foliage, white flowers
'Chequers' maculatum silver with wide green margins, deep pink flowers
'Compactum' galeobdolon compact, less vigorous than species
'Elisabeth de Haas' maculatum silvery centers, pink
'Florentinum' galeobdolon white variegated, green midrib and margins
'Friday' album two shades of green with gold centers, white flowers
Golden Anniversary ('Dellam') PP11,783 maculatum golden with green and silver centers, pink flowers
*'Herman's Pride' galeobdolon silver between green veins, upright, less spreading
'Pale Peril' album gold fading lime green, white flowers
*'Pink Chablis' maculatum silvery, pink flowers
*'Pink Pewter' maculatum silver with narrow green margins, pink flowers
'Red Nancy' maculatum silvery, rose red flowers
'Roseum' maculatum same as Chequers but wider, paler pink flowers
'Shell Pink':'Roseum'    
'Silbergroshen':'Beacon Silver'    
'Variegatum':'Florentinum'    
*'White Nancy' maculatum silver with green margins, white flowers, not for heat

(cultivar photos courtesy Missouri botanical gardens plantfinder)


©Authored by Dr. Leonard Perry, Professor, University of Vermont as part of PSS123 course.

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