General Culture
Grow in
average, medium moisture, well-drained soil in full sun to part shade. Prefers a
rich, humusy soil and light, dappled sun. Intolerant of the hot and humid
summers of the deep South.
Noteworthy Characteristics
This
species of meadow rue (sometimes commonly called lavender mist meadow rue) is a
slender, clump-forming perennial which features lacy, fine-textured,
bluish-green, pinnately compound, columbine-like foliage (3-4 ternate). Tiny,
pendulous, lavender-purple flowers with contrasting yellow stamens appear in
late summer (July-September in St. Louis) in loose, airy clusters atop sturdy,
purple flower stems which rise well above the foliage to 4-6' tall (infrequently
to 8'). When massed, the overall effect of the bloom can be spectacular.
Problems
No
serious insect or disease problems. Powdery mildew and rust are only occasional
problems. Unlike many of the meadow rues, this species has sturdy flower stems
which usually do not require staking or support.
Uses
A tall,
airy plant which provides excellent foliage and late summer bloom to the
perennial border, wildflower garden, meadow or naturalized area. Good background
plant. Perhaps best when grouped.