Hardy Blue Plumbago
Ceratostigma plumbaginoides
Plant DetailsÂ
USDA Plant Hardiness Zones: 5a-9b  Find Your ZoneÂ
Plant Type:Â Flowering Groundcover
Height at Maturity:Â 6-8″
Width at Maturity:Â 18″+
Spacing:Â 12-18″ for mass planting
Spacing:Â 12-18″ for mass planting
Growth Habit / Form:Â Spreading/Trailing
Growth Rate:Â Moderate to Fast
Flower Color:Â Bright Blue
Flower Type:Â Single
Flower Size:Â .5″
Flowering Period:Â Summer / Early Fall
Flowering Period:Â Summer / Early Fall
Fragrant Flowers:Â No
Foliage Color:Â Green
Fragrant Foliage:Â No
Evergreen Foliage:Â Â No
Berries:Â No
Sun Needs:Â Full Sun or Part Shade
Water Needs:Â Â Average to Low
Soil Type:Â Clay, Loam, Sand, Silt
Soil Drainage:Â Well Drained Moist or Well Drained Dry
Soil pH:Â 6.0 – 8.0
Maintenance / Care:Â Low
Attracts:Â Visual Attention
Resistances:Â Deer, Disease, Drought, Foot Traffic, Heat, Wet Soil
Foot Traffic Tolerance:Â Â Low
Description
Not to be confused with tropical plumbago, Hardy Blue Plumbago, Ceratostigma plumbaginoides, is a cold tolerant flowering perennial which spreads by rhizomes to form an attractive groundcover in the landscape or gardens. Stunning, 5-petaled, electric blue flowers are produced above the foliage during the the summer and all the way to frost! Flowers resemble those of woodland phlox and couldn’t be prettier against the burgundy-red fall foliage.
Landscape & Garden Uses
Growing 6-8 inches tall and spreading to form a patch 18 inches or more wide, Hardy Blue Plumbago is ideal for use as a groundcover in sunny or shady spots. It works especially nice as a border along a path or walkway or as an underplanting for trees such as Japanese maples. Perfect for interplanting with spring bulbs because foliage emerges late as the bulb foliage is dying back
Growing Preferences
Hardy Plumbago is very easy to grow. It is adaptable to most any average to even poor soil. It prefers a moist but well-drained soil however is exceptionally tolerant of dry soil conditions. It tolerates shade, but produces more of it’s pretty flowers with more sun. A good choice for poor soils and difficult sites. Looks beautiful in a container or spilling over a wall! Â
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