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Longwood Blue Caryopteris

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Product Number: 905
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Longwood Blue Caryopteris
Caryopteris × clandonensis 'Longwood Blue' 

USDA Plant Hardiness Zones: 5a-9b  Find Your Zone

Note:  For our customers who live and garden north of USDA Plant Hardiness Zone 5a, where this Caryopteris variety is not reliably winter hardy, you'll be happy to know it can be grown in containers that can be brought indoors during winter and placed back outside when temperatures warm up in spring.



Special Attributes

Longwood Blue Caryopteris is a fast growing perennial shrub featuring aromatic foliage and unique, pretty clusters of soothing, lavender-blue flowers in summer atop plants with beautiful, soft-textured, silver green foliage. The flowers appear early to mid-summer and continue through mid-fall attracting butterflies and hummingbirds.




Landscape & Garden Uses

Growing up to 3' tall and 4 feet wide, Longwood Blue Caryopteris is ideal for use as an accent, in groupings, or mass plantings to add soothing color and texture in landscape borders and perennial gardens. It is also useful as a centerpiece in containers. A fine addition to butterfly and hummingbird gardens, cottage gardens, fragrance gardens, blue color theme gardens, and the Xeriscape (low water needs).

Suggested Spacing:  24-30" for solid hedges or mass plantings; 5' for space between




Cultural Preferences

Longwood Blue Caryopteris is easy to grow when planted right, and in the right spot. It adapts to most soil types and performs well in full sun, morning sun with afternoon shade, or morning shade with afternoon sun. It prefers a moist but well-drained soil though is tolerant of dry soil conditions when established. Constantly soggy or wet soils can be problematic. Longwood Blue flowers on new growth so it's best to prune in spring. This will create more new growth resulting in more flowers.

Note:  Find helpful advice under the Planting & Care tab above on desktop computer monitors or below on mobile devices.




Plant Details

USDA Plant Hardiness Zones: 5a-9b  Find Your Zone
Plant Type:  Deciduous Shrub 
Height at Maturity: 3' in ground, 18-24" in containers
Width at Maturity:  4'
Spacing:  24-30" for solid hedges or mass plantings; 5' for space between
Growth Habit / Form:  Bushy, Rounded
Growth Rate:  Fast
Flower Color:  Bright Lavender-Blue
Flower Size: Small in Showy Clusters
Flowering Period:  Summer, Fall
Flower Type:  Single in Clusters
Fragrant Flowers:  No
Foliage Color:  Green
Fragrant Foliage:  Yes
Berries:  No
Berry Color:  No
Sun Needs:  Full Sun or Part Shade
Water Needs:  Average, low when established
Soil Type:  Clay (amended), Loam, Sand (amended), Silt (amended) 
Soil Moisture / Drainage:  Well-drained moist to dry
Soil pH:  6.5 - 7.5 (Neutral)
Maintenance / Care:  Low
Attracts:  Butterflies, Visual Attention
Resistances:  Deer, Disease, Drought, Dry Soil, Heat, Humidity, Insect, Rabbit



Plant Long & Prosper!

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