Deadhead regularly to encourage continued blooming. ... In early spring, they produce spikes of pretty, bright yellow, ¾" flowers. Spotted Deadnettles, Lamium maculatum, are hardy in USDA zones 4-10.

Does Lamium need to be deadheaded?

Deadheading is the process of remove expired flower blossoms in order to make room for new flower development. Although Lamium plants eventually drop the dead flowers, pruning them produces new blooms sooner. You can simply pluck the faded blooms with your fingers or cut the stem with a pair of bypass pruners.

Do you cut back dead nettle?

Dead nettles are hardy perennials in USDA growing zones 4 to 10. Prune or shear lamium back after the first bloom to promote compact growth. Slugs, snails, mildew, and leaf spot are common.