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Hibiscus syriacus Eruption - Rose of Sharon

Hibiscus syriacus Eruption®
Common Hibiscus, Rose of Sharon, Syrian ketmia, St Joseph's rod, Garden Hibiscus

4,4/5
2 reviews
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1 reviews
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This comment applies to this hibiscus and the two following ones. The young plants look in good condition, bushy and well-pruned. Two of them have withstood the journey well, but the third one, packed upside down, was starting to come out of its pot. The main issue is that the pruning indicated in the catalogue was "60-80 cm", while the delivered plants measure 42 cm (17in), 45 cm (18in), 47 cm (19in). The supplier was very understanding and offered a partial refund. However, this does not solve the problem of the size of the bushes, which had been an essential criterion for me when choosing.

Renée P., 24/02/2018

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This plant carries a 24 months recovery warranty

More information

New variety of Althaea offering large and slightly crumpled semi-double violet flowers, measuring 10 cm (3.9 in) in diameter.
Flower size
10 cm
Height at maturity
2 m
Spread at maturity
1.50 m
Exposure
Sun, Partial shade
Hardiness
Hardy down to -23°C
Soil moisture
Dry soil, Moist soil
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Recommended planting time March to May, September to November
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Flowering time July to October
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Description

Hibiscus syriacus Eruption® is a new variety of Althaea that offers large, semi-double purple flowers that are slightly crumpled, with a diameter of 10 cm (3.9 in).

Also known as "Tree Mallow," this Althaea has an upright habit, dense and harmoniously ramified. It is a recent creation (Minier 2009). The deciduous leaves are alternate, simple, crenate, and 10 cm (3.9 in) long, with a dark green colour. The large cup-shaped flowers, semi-double, with a diameter of 10 cm (3.9 in), are purple, slightly crumpled, and last from July to October.

Native to China, Hibiscus syriacus prefers a fresh, rich, well-drained soil, preferably neutral, although it can tolerate limestone in a well-exposed and airy location. Remove faded flowers as they can hinder the plant's growth.

Hardy down to -20 °C (-4 °F), Hibiscus syriacus Eruption® can be used as a standalone plant, in borders, or as a free-standing hedge alongside other shrubs such as buddleia or laurustinus.

Hibiscus syriacus Eruption - Rose of Sharon in pictures

Hibiscus syriacus Eruption - Rose of Sharon (Foliage) Foliage

Plant habit

Height at maturity 2 m
Spread at maturity 1.50 m
Habit spreading
Growth rate slow

Flowering

Flower colour pink
Flowering time July to October
Flower size 10 cm

Foliage

Foliage persistence Deciduous
Foliage colour green

Botanical data

Genus

Hibiscus

Species

syriacus

Cultivar

Eruption®

Family

Malvaceae

Other common names

Common Hibiscus, Rose of Sharon, Syrian ketmia, St Joseph's rod, Garden Hibiscus

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Planting and care

Hibiscus syriacus Eruption® should be planted in autumn in a rich, fresh, well-drained soil in full sun. Water thoroughly in summer and remove faded flowers as they appear as fruiting can harm the plant. Prune heavily every year from February to June. It may be prone to attacks from aphids, scale insects, whiteflies and powdery mildew. Apply necessary fungicides after any risk of frost. Propagation is via cuttings of dried wood in November.

Planting period

Recommended planting time March to May, September to November

Intended location

Type of use Border, Free-standing, Container
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Beginner
Planting density 1 per m2
Exposure Sun, Partial shade
Soil pH Neutral, Calcareous
Soil type Clayey-chalky (heavy and alkaline), Silty-loamy (rich and light)
Soil moisture Dry soil, Moist soil, draining

Care

Soil moisture Dry soil, Moist soil
Overwinter Can be left in the ground
4,4/5
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