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Purple Rose of Sharon - Hibisucs - Althea

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Purple Rose of Sharon
Hibiscus syriacus 'Purple'

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

Special Attributes

The gorgeous double purple flowers of Purple Rose of Sharon, also known as Althea or Hibsicus, cover the plant from early summer into fall and are a magnet for butterflies and hummingbirds. So make sure to plant yours where you can watch them swarm the flowers! 

For those of you who love Crape Myrtles, just wait til' you have a Rose of Sharon. We consider Rose of Sharon one of the the most under-rated ornamental plants in the plant world. The Rose of Sharon is very easy to grow and requires little to no maintenance. We have a few tree form Rose of Sharon planted in our test gardens and rarely have to touch them. No insect or disease problems. No issues with heat or drought. The deer won't eat them...and best of all, the masses of beautiful flowers keep coming for months. New buds appear behind cycle of blooms giving a constant show of color!

Landscape & Garden Uses

Growing 8-12 feet tall with a spread to about 4-6 feet, the Purple Rose of Sharon is ideal for use in smaller garden spaces where some height is needed. Grow it as a shrub or remove some lower branches to form a very attractive small tree. Pruning is best done before new leaves emerge in late winter or early spring.

Because they are such beautiful flowering trees, we think Rose of Sharon are most useful in the landscape as a focal point specimen, however are also nice grouped or used as attractive, colorful hedges in landscape borders. Limb your Rose of Sharon up and you have a stunning small tree that fits perfectly in smaller garden spaces and in home foundation plantings, around patios and other outdoor living spaces.

Spacing:  4' for solid hedge; 8' for space between plants

Cultural Preferences

Rose of Sharon are very easy to grow and maintain. Simply plant them where the sun shines most of the day. Some light shade is tolerated but too much shade and plants will become leggy and flowering is diminished. They are not too particular about soil type and very drought tolerant once established. Constantly soggy or wet soil or standing water can be problematic. They require little if any pruning, though a stray or broken branch can be removed any time of year. 

Helpful Articles

Click on the link below to get helpful advice from our experts on how to plant, fertilize, prune and water Rose of Sharon shrubs...

Plant Details

USDA Plant Hardiness Zones: 5a-9b  Find Your Zone
Plant Type:  Deciduous Flowering Shrub or Tree
Height at Maturity:  8-12'
Width at Maturity:  4-6'
Growth Habit / Form:  Upright, Vase/Fountain Shape
Growth Rate:  Moderate
Flower Color: Purple
Flower Size:  Large, 4-5"
Flowering Period:  Summer into Fall
Flower Type:  Double
Fragrant Flowers:  No
Foliage Color:  Rich Green
Fragrant Foliage:  No
Berries:  No
Berry Color:  NA
Sun Needs:  Full Sun or Mostly Sun, Morning Sun with Dappled or Afternoon Shade, Morning Shade with Evening Sun
Water Needs:  Average, Low
Soil Type:  Clay, Loam, Sand (Amended)
Soil Moisture / Drainage:  Well Drained Moist, Moderately Drained
Soil pH:  5.5 - 7.5
Maintenance / Care:  Low
Attracts:  Butterflies, Hummingbirds, Visual Attention
Resistances:  Deer, Disease, Drought, Heat, Insect

Plant Long & Prosper!

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