General Culture:
Best grown in moderately fertile, medium moisture, well-drained soil in full sun to light shade. Prefers rich, moist, organic soils. Plants need good air circulation to combat potential mildew problems. Avoid overhead watering. Intolerant of drought. Appreciates a summer mulch which helps keep roots cool. Remove faded flower clusters to prolong bloom and to prevent unwanted self-seeding (plants do not come true from seed).
Noteworthy Characteristics:
This garden phlox cultivar has been popular for a number of years. It is an upright, clump-forming perennial which typically grows 3-4' tall. Aromatic, white, tubular, 5-lobed, flat, 1 inch diameter flowers with long corolla tubes appear in summer in large, terminal, pyramidal panicles (to 15" long) atop stiff, upright stems which seldom need staking. Thin, opposite, lance-shaped leaves (to 5" long). A good cut flower. Attractive to butterflies, birds and hummingbirds.
Problems: Click for detailed list of pests and problems.
Phlox is not always an easy plant to grow. Powdery mildew and root rot can be serious problems. Newer cultivars, such as 'David' (L610), have better disease resistance and may be better selections in areas where powdery mildew seems to thrive. Spider mites and plant bugs can also be a problem, particularly in hot, dry conditions.
Uses:
A staple of the perennial border. Mixes well with other flowers and provides excellent color and a long mid-summer to fall bloom.
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Garden, 2001-2010