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Rose-of-Sharon Hibiscus syriacus

Rose of Sharon - Hibiscus syriacus
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The Rose of Sharon is a deciduous, upright, occasionally spreading shrub or small tree with multiple trunks. The branches grow upright and will not droop except when in flower. The dark green leaves emerge late in the spring. The trumpet shaped flowers are 2-4" across in colors of white, pink, red, violet or purple. The Rose of Sharon requires ample moisture and some protection from midday to afternoon sun to flower at its best. Plant about 2'-3' apart for a single row hedge.

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Zones 5 - 9 Zones 5 - 9
Hardiness Zones 5 - 9
The Rose-of-Sharon can be expected to grow in the zones shown in color in the arborday.org zone map. View Map
Shrub Shrub
Type of tree
Shrubs
8' - 12' High 8' - 12' High
Mature Height
The Rose-of-Sharon grows to be 8' - 12' feet in height.
6' - 10' Spread 6' - 10' Spread
Mature Spread
The Rose-of-Sharon has a spread of about 6' - 10' at full maturity.
Medium Growth Medium Growth
Growth Rate
This tree grows at a medium growth rate. More about this.
Full Sun Full Sun
Sun
This Rose-of-Sharon does well in full sun, partial shade.
Various Soils Various Soils
Soil
The Rose-of-Sharon grows in acidic, moist, well drained, wide range soils.
Vase Shape Vase Shape
Shape
This Rose-of-Sharon has vase shape.
Attributes

The Rose of Sharon is valued for its large summer flowers produced at a time when few other plants bloom. It's tolerance of aerosol salt and occasional wet or drought periods make this a fine shrub for many landscapes. It is suited to formal or informal plantings, groupings, shrub borders, hedges and screens. The Rose of Sharon keeps its tight upright form as it grows and requires little pruning. It is a hardy hibiscus and an easy shrub to grow. Our Rose of Sharon seedlings are grown from seed or cuttings.

Description

The Rose of Sharon is an deciduous, upright, occasionally spreading shrub or small tree with multiple trunks. The branches grow upright and wlll not droop except when in flower. The leaves emerge late in the spring.Leaves are medium to dark green in summer with no or poor yellow fall color. The bark is light brown and thin, and the wood itself is weak.The trumpet shaped flowers are 2-4" across in colors of white, pink, red, violet or purple. They stay open for one day and close at night. Single-flowered varieties are hardier than the double-flowered types. The roots are located just below the soil surface. This shrub is tolerant of many soil textures, moisture conditions, and acid to alkaline pH if it is in full or nearly full sun. However, it requires ample moisture and some protection from midday to afteroon sun to flower at it's best. The shrub will keep its upright form as it grows, so little pruning is required. While shaping or pruning can be done at any time, pruning in late winter or early spring will minimize the loss of the emerging flower buds on the new growth. Pruning heavily in early spring or pruning back to 2-3 buds will produce fewer but larger flowers. It can be pruned to to create a single trunk small specimen tree. Transplanting should be done in the spring as the shrub takes some time to get established. Plant about 2'-3' apart for a single row hedge.

Wildlife Value

Butterflies and hummingbirds are attracted to the flowers.

History/Lore/Use

The Rose of Sharon is native to China and India. The name hibiscus is from an ancient Greek name for "mallow" for this plant was thought to resemble the mallow blossom. Many cultivars of this species have been introduced.

Leaves

The leaves are alternate, simple, 3 lobed, ovate to rhomboid, 2-4" long, with an often coarsely tooth margin. Medium to dark green summer color with a poor yellow color in fall.

Flower Color

Five petaled, single or double, white, pink, red, purple or violet showy flowers on new year's growth.

Bloom Time

time late spring through early fall.