‘Congo’ Robin Hill Azalea
Azalea x ‘Congo’
Plant Details
USDA Plant Hardiness Zones: 6a-9b   Find Your Zone
Plant Type:Â Evergreen Flowering ShrubÂ
Height at Maturity:Â 3-4′
Width at Maturity:Â 4′
Spacing:Â 3′ for solid hedges;Â 7’+ for space between plants
Growth Habit / Form:Â Bushy, Dense, Mounding, RoundedÂ
Growth Rate:Â Moderate
Flower Color:Â Purple
Flower Size:Â Large
Flowering Period:Â Late Spring
Flower Type:Â Single
Fragrant Flowers:Â No
Foliage Color:Â Medium to Dark Green to Burgundy
Fragrant Foliage:Â No
Sun Needs:Â Morning Sun with Dappled or Afternoon Shade, All Day Filtered Sun or Dappled Shade
Water Needs:Â Â Average, lower when established
Soil Type:Â Â Clay (amended), Loam, Sandy (amended), SiltÂ
Soil Moisture / Drainage:Â Well Drained Moist
Soil pH:Â 5.0 – 6.5 (Acid to Slightly Acid)
Maintenance / Care:Â Low, Average
Attracts:Â Butterflies, Visual Attention
Resistances:Â Rabbit
Description
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The Robin Hill Hybrids are a wonderful group of mid to late spring flowering azaleas grown for their large funnel-shaped flowers and Satsuki Azalea-type form. With cold hardiness down -5°F, ‘Congo’ features loads of large and vibrant rich purple flowers with red freckles over an extended period in spring that nearly cover the dark green evergreen foliage on a dwarf spreading mound 2 to 3 feet tall and up to 5 feet wide. being a mid to late spring bloomer, the butterflies and hummingbirds will enjoy the flowers and blooming branches serve very well for cutting to create stunning indoor floral arrangements. Excellent for the landscape or bonsai.
Landscape & Garden Uses
Growing to about 2 to 3 feet tall and 4 to 5 feet wide, Congo Azalea is ideal for use as an accent, border, groupings, mass plantings or low hedge in partially shaded landscape or woodland borders and home foundation plantings.Â
Spacing:Â 3-3.5′ for solid hedges;Â 7’+ for space between plants
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Growing Preferences
The Congo Azalea is easy to grow in most any moist but well-drained soil of average or better fertility. It prefers a moist but well-drained and acidic soil that is rich in organic matter. Morning sun with afternoon shade or filtered sun is ideal. Moderate drought tolerance when established.
Helpful Articles
Click on a link below to find helpful Azalea planting and care advice from our experts.
Planting Evergreen Azaleas In The Ground & In Pots
Planting Evergreen Azaleas
Pruning Evergreen Azalea
Plant Long & Prosper!
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