Keep it watered and fertilize once a month. Astilbes can withstand sun as long as they're well mulched and watered. Propagate by division every three or four years. Zones 4 to 8. 5. This plant is a mecca for bees, butterflies and hummingbirds, who feed on the nectar of its pompom flowers from summer to fall.
Bee balm can do equally well in full sun or light shade.
It's also deer-resistant. You can propagate from cuttings, from seed or by division in the spring. Zones 4 to 9. An excellent candidate for a shady garden, the bleeding heart. Typically it blooms in the spring, but if you get the fern-leaf variety, you can get blooms all summer long.