Deadnettle Care Must-Knows
These easy-to-grow plants require very little care once established and create stunning mats of color in a shade garden. Deadnettles are most at home in well-drained soil with even moisture. Once established, they are quite tolerant of dry soil; they may just be a bit less vigorous. The biggest concern is overly moist soil. Most species and varieties will not tolerate too much moisture, so be sure to avoid soggy soil, especially standing water. Deadnettles prefer shade where they take on a green hue and their attractive variegations fade a bit over time. Since deadnettles are fairly vigorous growers, be sure to weed out any seedlings that develop. Shear the plants back after blossoming in their peak season to encourage well-branched plants and a hearty second bloom.