Plant ID

Rose of Sharon

Also known as

Shrub Althea, Korean Rose

Fast grower

Keep this plant’s care guide close at hand.

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About Rose of Sharon

Hibiscus syriacus, commonly known as Rose of Sharon, is a flowering shrub native to East Asia and the national flower of South Korea. It is a hardy deciduous member of the Malvaceae family that can grow up to 2-4 meters in height. The plant sports broad, flat leaves and blooms with large, conspicuous flowers from summer to fall. The flowers are available in a variety of shades, including pink, red, purple, and white, often with a contrasting eye in the center. This plant is highly tolerant of air pollution, making it a popular choice for urban and suburban landscapes.

Taxonomy

Scientific name
Hibiscus syriacus
Genus
Hibiscus
Family
Malvaceae
Order
Malvales

Properties & Requirements

Difficulty: Easy
Humidity: 20% - 90%
Soil pH: 5.5
Repot Every: 52 weeks

How to care for Rose of Sharon

Water

Water Hibiscus syriacus regularly, keeping the soil evenly moist but not soggy. Increase watering frequency during dry spells, especially when the plant is establishing. Overwatering or allowing standing water can lead to root rot.

Light

Hibiscus syriacus prefers full sun to partial shade. While it tolerates partial shade, sunlight is crucial for optimal blooming. Locations with at least six hours of direct sunlight are ideal.

Nutrients

Fertilize Hibiscus syriacus in the early spring with a balanced, slow-release fertilizer to promote healthy growth and abundant flowering. During the growing season, additional feeding with a high potassium fertilizer can enhance bloom quality.

Temperature

This plant thrives in temperatures ranging from 6°C to 27°C. It is winter-hardy in USDA zones 5 through 9, tolerating some freezing temperatures once fully established.

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