Hardy Plumbago
Ceratostigma plumbaginoides
Monrovia® varieties
Traits
Varieties We Carry
PlumbaginoidesCeratostigma plumbaginoidesMonrovia
Sizes & Pricing
#1MonroviaFrom$19.95
Fresh this week. Last restocked Jun 15.
LightFull Sun, Part Shade
WaterModerate
Mature size6-12 inches × 12-18 inches
About Hardy Plumbago
Hardy Plumbago (Ceratostigma plumbaginoides) is a low, spreading deciduous groundcover that carries true cobalt-blue flowers from late summer into fall, when its foliage turns bronze-red. Unlike the tender, shrubby Cape plumbago, this is a tough, cold-hardy perennial that dies back in winter and returns to knit together as a weed-smothering carpet. Starting at $19.95.
Plant details
- Bloom Season
- Late Summer to Fall
- Flower Color
- Cobalt Blue
- Growth Rate
- Moderate
- Foliage
- Deciduous
- Soil
- Loam, Sandy, Well-drained
Care essentials
Light
Best flowering and fall color come in full sun, though it takes part shade. It spreads by rhizomes to form a dense mat.
Water
Water regularly to establish, then it is moderately drought tolerant. It prefers soil that is not waterlogged, especially in winter dormancy.
Soil & Fertilizer
Adapts to most well-drained soils. Cut back the dead stems in late winter before new growth, which emerges late in spring.
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Common questions
Is Hardy Plumbago a good plant for St. Augustine?
Hardy Plumbago is a plant for Zone 9b coastal Florida gardens, reaching 6-12 inches × 12-18 inches.
Care information verified from
Last reviewed June 2026. Our care guidance comes from trusted horticulture sources and decades of helping St. Augustine gardeners. Conditions here can vary dramatically from one area to the next, so come ask us and we'll tailor it to your yard.