Members of the Lamium plant genus that are grown in the garden are usually done so for their beautiful foliage.
Lamium plants are hardy perennials.
In addition to some specifically grown garden plants, the genus contains many members that are considered weeds by many. However, these can make great plants for wild-life gardens as Lamium plants are known to readily attract bees to the garden.
The leaves of garden grown Lamium species are often silver.
Plants carry flowers that look similar to those of Snapdragon.
These typically bloom from the end of spring until the start of summer.
Lamium purpureum by Blumenbiene.
Lamium maculatum (Spotted Dead-nettle / Spotted Henbit / Purple Dragon), photograph by Manuel m. v.; CC.
Lamium purpureum (Red dead-nettle / Purple Dead Nettle / Purple Archangel), photograph by Andreas Rockstein; CC.
Lamium amplexicaule (Common Henbit / Greater Henbit), photograph by Andreas Rockstein; CC.
Common Names: Dead Nettle, Cobbler’s Bench, Greater Henbit, Yellow Archangel.
Scientific names: Lamium maculatum; Lamium purpureum; Lamium amplexicaule; Lamium galeobdolon.
Life Cycle: Hardy perennial. Hardy Annual.
Height: 2 to 36 inches (5 to 90 cm).
Native: Europe, Asia, North Africa.
Growing Region: Zones 3 to 8.
The time that you sow the seeds of Lamium is dependent upon the species that you are growing: Yellow ones should be sown in autumn; purple or white species should be sown in the spring.
Once sown, lightly cover seeds with topsoil.
They can be grown in either a sunny or partially shaded part of the garden. It is important that the soil has good drainage. Dead Nettle and other Lamium members prefer to grow in a poor soil.
When starting off Lamium indoors, they should be started off about 10 weeks before due to be out out in the garden.
They take from one to two months to germinate at 17 to 21 degrees centigrade (63 to 70°F).
The young Lamium plants should be put out in either the spring or autumn.
Members of the Lamium genus are weedy in nature. So if you are growing them in the garden you should be prepared to keep an eye on them to stop them taking over the garden.
They should be fertilized in the spring. Once the flowering season is over they should be cut back.
If you require more Dead nettle plants, then either take root cuttings or divide them in the spring.