Hibiscus syriacus 'Lady Stanley' - garden hibiscus, double pink flower

Hibiscus syriacus 'Lady Stanley', also known as “Rose of Sharon Lady Stanley” or “double hibiscus Lady Stanley,” is a cultivar of the species Hibiscus syriacus from the mallow family. This deciduous shrub, native to East Asia (China, Japan, Korea), is valued for its double flowers, cream-pink with deep pink streaks and a red center, and for its long blooming period from summer to autumn. 'Lady Stanley' stands out for its refined floral appearance and compact stature, making it ideal for borders, hedges, containers, or as a solitary plant in gardens.

Appearance of leaves, flowers, and fruits

• Leaves: The leaves are deciduous, dark green, ovate or three-lobed, with toothed edges, 5-10 cm long. They appear late, in May, and have a palmate-veined texture. In autumn, the leaves may turn yellowish before falling but do not offer a significant color display.
• Flowers: The flowers are double, 6-8 cm in diameter, with multiple petals creating a full, rose-like look. The base color is cream-pink, with pink streaks and a red-purple center that adds contrast. They bloom from July to September, sometimes until October, each flower lasting one day but constantly replaced by new buds. The flowers have a faint scent and attract pollinators such as bees and butterflies, although double flowers are less accessible than single ones.
• Fruits: It produces dehiscent capsules, green or brown, 1-2 cm in size, which persist through winter. These are not ornamental and contain seeds that can easily germinate, giving the plant a somewhat invasive character in some regions.

Growth characteristics

• Height and width: It grows as a compact shrub, reaching 1.5-2.5 meters tall and 1-1.5 meters wide in 10-20 years. It has a vase-shaped form, with slender branches that arch slightly under the weight of the flowers.
• Vigor: Growth is moderate, with dense branching if pruned regularly. Flowers appear on new wood, making annual pruning beneficial.
• Type: It is a hardy deciduous shrub with a branched structure that can be shaped into various forms, including hedges, small trees, or standard shapes.

Growing conditions

• Exposure: Prefers full sun for abundant flowering but also tolerates partial shade, with a reduction in flower number. A sunny spot sheltered from strong winds enhances the appearance of the double flowers.
• Soil: Grows well in fertile, well-drained soils with consistent moisture, from slightly acidic to alkaline (pH 5.5-8). It tolerates poor soils but prefers a mix with compost or well-rotted manure. For pots, soil-based compost is recommended.
• Watering: Requires regular watering, especially in the first year, to keep the soil moist but not soaked. Once established, it tolerates moderate drought.
• Pollination: Double flowers are less attractive to pollinators than single ones but can attract bees and butterflies depending on the accessibility of the flower center.

Care and resistance

• Hardiness: It is frost-hardy, withstanding temperatures down to -15°C to -20°C (zones 5-9), suitable for temperate climates, including Romania. Young leaves may be affected by late frosts, and in harsh winters, mulching the base is recommended.
• Fertilizing: Apply a balanced fertilizer (e.g., 10-10-10) in spring and summer to stimulate flowering. Benefits from regular feeding during the growing season.
• Pruning: Prune in February-March to encourage flowering on new wood, keeping 2-3 buds on last year’s branches. Pruning helps maintain a compact and dense shape. Remove dead or damaged branches in spring.
• Pests and diseases: May be affected by aphids, spider mites, whiteflies, or Japanese beetles. Diseases include leaf spots, rust, or molds, especially in damp conditions. Good ventilation and avoiding wetting the leaves reduce risks.
• Propagation: Propagated by softwood cuttings taken in summer, layering, or seeds, although seeds may produce variable plants. Cuttings are the most reliable method to preserve cultivar traits.
• Toxicity: It is non-toxic to humans and animals, and the flowers are edible, used in some cultures for teas or decoration.

Uses

Hibiscus syriacus 'Lady Stanley' is ideal for mixed borders, hedges, privacy screens, or as a solitary plant in gardens. Its double, cream-white flowers with pink streaks and a red center add a refined touch, perfect for cottage gardens, romantic landscapes, or urban gardens due to its pollution tolerance. It can be grown in containers on terraces, suitable for small yards because of its compact stature. It is excellent for creating an elegant focal point in the garden.

Origin

Hibiscus syriacus is native to East Asia (China, India, Korea) but has been cultivated in Europe since the 16th century. The 'Lady Stanley' cultivar was selected for its double flowers, with their distinctive cream-pink look with intense pink and red accents, becoming a favorite in ornamental gardening due to its elegance. Hibiscus syriacus is the national symbol of South Korea, known as “Mugunghwa” (eternal flower), and is mentioned in the country’s anthem.

Pot diameter: 13 cm
Height including pot: approx. 30 cm