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Property of Sooner Plant Farm.

Property of Sooner Plant Farm.



Plant Characteristics

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

Homeowner Growing & Maintenance

Altheas are easy to grow, and adapt to most conditions. Feed once a year with a slow release fertilizer. To give your plant the best start possible, we include a free fertilizer packet.

Interesting Notes

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AMPLISSIMUS RED DOUBLE ALTHEA

Hibiscus syriacus 'Amplissimus'
AKA: Amplissimus Red Double Rose of Sharon

Buy Amplissimus Red Double Althea online. Amplissimus is a medium sized, upright growing, slender, well-branched shrub to 10 feet with bright green serrated leaves. It is easily grown, tolerating a widerange of soil and moisture conditions. It produces an abundance of red blossoms in late summer.. Note Althea Hibiscus is considered a shrub or tree and will not die back to the ground in winter, like Hardy Hibiscus.

Mature Height:

8-10 Feet

Mature Spread:

6-8 Feet

Hardiness Zone:

5-9

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 www.dripdepot.com for our irrigation needs, from simple to install micro and drip systems, to commercial grade irrigation parts and supplies.

Purchase AMPLISSIMUS RED DOUBLE ALTHEA Online

Eco gallon Potted

SKU: 3922

(2.64 qrts / 2.51 liters)
(377 units available now - G)

Standard Package




$35.00

Add to Cart

2 gallon Potted

SKU: 7127

(1.87 gallons / 7.09 liters)
(0 units available now)

Standard Package




$45.00

Get Notified SOLD OUT  

3 gallon Potted

SKU: 3923

(2.90 gallons / 11.0 liters)
(0 units available now)

Standard Package




$75.00

Get Notified SOLD OUT  

5 gallon Potted

SKU: 3681

(4.10 gallons / 15.55 liters)
(423 units available now - G)

Standard Package




$95.00

Add to Cart

3 gallon Potted

SKU: 6595

(2.90 gallons / 11.0 liters)
(3-4 ft tall)
(0 units available now)

Standard Package Tree Form



$100.00

Get Notified SOLD OUT  

5 gallon Potted

SKU: 4348

(4.10 gallons / 15.55 liters)
(4-5 ft tall)
(0 units available now)

Standard Package Tree Form



$115.00

Get Notified SOLD OUT  

7 gallon Potted

SKU: 4329

(6.08 gallons / 23.03 liters)
(5-6 ft tall)
(0 units available now)

pick up only Tree Form



$250.00

Get Notified SOLD OUT  
   
 

Sooner Help Zone

Quote of the Day

“At the end, God will not ask what you have saved, but what you have given. - Flora Larson”

Customer Testimonials

Excellent packaging, delivery, and plants!


Carol
Rices Landing, PA
November 2016

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