Wild Blue Phlox; Wild Sweet William
Family: Polemoniaceae (Phlox
Family)
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Hardiness Zones: 3-8
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Height: 12-15 inches
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Spread: 9-12 inches
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Bloom Time: April to May
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Bloom: loose clusters of fragrant, tubular, rose-lavender or
violet-blue flowers (0.75 to 1.5 inches across), with 5 petal-like lobes
notched at the tips; blooms are occasionally pink or white
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Light: part to full shade
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Soil: best in humusy, well-drained
soil; tolerates clay soil
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Moisture: medium; drought tolerant once
established
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Use: shaded informal borders;
woodland, shade, and native plant gardens; naturalized areas
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Care: cut back stems after flowering to
prevent self-seeding; clean up foliage in spring
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Concerns: few disease or insect pest
problems except powdery mildew under humid conditions (or when air circulation
is poor) and spider mites in hot dry
weather; deer and rabbits browse
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Native to: Eastern North America
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Notes: opposite pairs of lance-shaped,
shiny, dark green leaves (to 2 inches long) on hairy and sticky stems;
shallow-rooted; can form large colonies over time as leaf shoots root at the
ground; self-seeds but not aggressively; flowers must be cross-pollinated by
hummingbirds, butterflies, and long-tongued bees and moths
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Supplier: Donated by Karen Allenstein
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Teaching Garden
Location & Code: Naturalistic Garden H153
Content
produced through:
Dane County
UWEX Master Gardener Volunteer Program
Questions?
Dane County UWEX Horticulture
Program
