General Culture:
Grow in moderately fertile, medium moisture, well-drained soil in full sun to part shade. Best in full sun. Prefers rich, moist, organic soils. Needs good air circulation (space well and thin out stems as needed) to help combat potential powdery mildew problems. Intolerant of drought and needs to be watered in dry spells. Avoid overhead watering however. Appreciates a summer mulch which helps keep the root zone cool. Space 24-30” apart in the garden.
Noteworthy Characteristics:
‘David’s Lavender’ is a lavender-flowered sport of the popular disease-resistant white-flowered cultivar known as Phlox paniculata ‘David’ (see L610 herein). ‘David’s Lavender’ is an upright, conical perennial that typically grows in a clump to 3-4’ tall on stiff stems clad with narrow, opposite, pointed, elliptic, deep green leaves (to 5” long). Stems of this cultivar seldom need staking. Fragrant tubular lavender flowers (each to 1/2” diameter) appear in densely packed large terminal clusters (each to 8-10’ long) over a long July to September bloom period. Each individual flower has a long corolla tube and five flat petal-like lobes. The name phlox is derived from the Greek word for flame.
Problems: Click for detailed list of pests and problems.
Phlox is not always an easy plant to grow well. Powdery mildew and root rot can be serious problems. Spider mites can also be a problem, particularly in hot, dry conditions. ‘David’s Lavender’ is noted for having good resistance to powdery mildew problems.
Uses:
Garden phlox is a staple of the perennial border. Mixes well with other perennials and provides long summer bloom.
© Missouri Botanical
Garden, 2001-2010
More photos: