Ceratostigma plumbaginoides, commonly known as leadwort or plumbago, is a versatile groundcover known for its vivid cobalt blue flowers and striking red foliage in fall.
Height & Spread: 6 - 10 in x 12 - 18 in
Bloom Time: Late summer to early fall
Light Requirements: Full sun to part shade
Soil Preference: Well drained, moderately fertile soil
Watering Needs: Moderate; drought tolerant once established
Deer Resistance: Moderate to high
NATIVE STATUS
Not native to North America but its adaptability, low maintenance, and late season pollinator support make it a strong addition to pollinator friendly and native adjacent gardens.
WILDLIFE & INSECTS
Bees
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Attracts native and honeybees seeking nectar during the late season bloom window when fewer options are available.
Butterflies
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Provides a valuable nectar source for butterflies such as monarchs and sulfurs during fall migration and feeding periods.
Ground Beetles & Beneficial Insects
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Its dense foliage cover creates cool, protected ground level habitats for predatory beetles and soil aiding insects.
SPACING & LANDSCAPE USE
Spacing Recommendations
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Plant 12 - 18 in apart for quick groundcover establishment and dense coverage.
Landscape Placement
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Ideal for edging, underplanting shrubs, rock gardens, slopes, or between stepping stones where a low colorful carpet is desired in late summer and fall.
COMPANION PLANTS
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Amsonia hubrichtii (Threadleaf Bluestar) - Adds fine texture and golden fall color that complements leadwort’s red foliage.
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Echinacea pallida (Pale Purple Coneflower) - Offers height and earlier blooms to extend the pollinator season.
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Schizachyrium scoparium (Little Bluestem) - Its upright habit contrasts beautifully with the low spreading leadwort and shares drought tolerance.
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Geranium maculatum (Wild Geranium) - Fills early season bloom gaps and thrives in similar part shade conditions.
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Heuchera villosa (Hairy Alumroot) - Adds foliage variety and thrives in well drained soil with partial shade.