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Click for previous Image Image 1 of 2 Hibiscus syriacus Greba BLUE ANGEL™ ALTHEA
Image Courtesy of Greenleaf Nursery

Image Courtesy of Greenleaf Nursery

Plant Characteristics

Bark Color*
  • Gray
Bark Type*
  • Smooth
  • Garden Debut
Cultural Information*
  • Powdery Mildew - High Resistance
  • Leaf Spot - High Resistance
  • Root Rot - High Resistance
  • Leaf Scorch - High Resistance
Flower Color*
  • Multi-Colored
  • Blue
  • Lavender
  • Red
Flower Type*
  • Single Blooming
Growth Rate*
  • Fast
Leaf Color Fall*
  • Dark Yellow/Gold
  • Light Yellow/Brilliant Yellow
Leaf Color Spring*
  • Green
Leaf Color Summer*
  • Green
Leaf Type*
  • Deciduous/Herbaceous
Nature Assets*
  • Deer Resistant
  • Attracts Butterflies
  • Attracts Bees
Plant Type*
  • Shrub
Preferred Planting Season*
  • Summer Planting
  • Spring Planting
  • Fall Planting
Preferred Soil Conditions*
  • Average
  • Salt Tolerant
  • Adapts Well to Most Soil Types
  • Moist
  • Well-Drained
Propagation Methods*
  • Cuttings or Divisions
Season of Interest*
  • Summer
  • Summer Flowering
  • Fall
  • Late Spring/Early Summer
  • Spring
  • Late Summer/Early Autumn
Sun Exposure*
  • Prefers Full Sun in Northern States
  • Tolerates Morning Sun Only in Southern States
  • Tolerates Full Sun in Northern States
  • Tolerates Full Sun in Southern States
  • Tolerates Morning Sun Only in Northern States
  • Prefers Full Sun in Southern States
  • Mass Planting
  • Wildlife Habitat
  • Border Plant
  • Under Power Lines
  • Accent Plant
  • Landscape Specimen

Homeowner Growing & Maintenance

Very easy to grow, adapts to most conditions. Feed once a year with a slow release fertilizer. To give your tree the best start possible, we include a free fertilizer packet.

Interesting Notes

Feedback from growers is Blue Angel™ is a superior grower to Blue Satin™

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Hibiscus syriacus 'Greba'
AKA: Blue Angel™ Rose of Sharon

Buy Blue Angel™ Althea online. : A medium sized, upright and vigorous growing, well-branched shrub. Large, single, rich blue flowers adorn the plant in late summer. Tolerates a wide variety of soil types and moisture conditions.

For more information on Althea Hibiscus click here.

Mature Height:

6-8 Feet

Mature Spread:

4-6 Feet

Hardiness Zone:


What's My Hardiness Zone?

Family: Malvaceae · Common Name: Althea / Rose of Sharon / Hardy Hibiscus

FREE with every plant purchased:

  • The Sooner Guarantee: For details, click here!
  • A pre-measured amount of Polyon® Best-Paks time release fertilizer that keeps your plant well nourished for one year.
  • Pre-hydrated Hydro-Gels are included in the top of each container to use when planting as they help retain soil moisture, and plants will establish more quickly with less transplant shock. Plants will also survive drought-like conditions and accidental missed waterings better.
  • Planting and Care Instruction brochure.
  • Catalogs of new and exciting plant brands, such as Garden Debut® and Proven Winners®.

DIY Irrigation SuppliesWe use and recommend for our irrigation needs, from simple to install micro and drip systems, to commercial grade irrigation parts and supplies.

Purchase BLUE ANGEL™ ALTHEA Online

Eco gallon Potted

SKU: 5153

(2.64 qrts / 2.51 liters)
(0 units available now)

Standard Package


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Jumbo gallon Potted

SKU: 5726

(4.04 qrts / 3.82 liters)
(0 units available now)

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2 gallon Potted

SKU: 7060

(1.87 gallons / 7.09 liters)
(6 units available now - G)

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3 gallon Potted

SKU: 4255

(2.90 gallons / 11.0 liters)
(288 units available now - SG)

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5 gallon Potted

SKU: 4873

(4.10 gallons / 15.55 liters)
(1 units available now - S)

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Customer Testimonials

I received excellent and caring service from your company and would definitely purchase from you again.

Cambridge, MA
November 2016

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