Botanical profile

Hibiscus syriacus 'Red Heart'

Latin name
Hibiscus syriacus 'Red Heart'
Common name
Rose of Sharon ‘Red Heart’
Type
Shrub
Family
Malvaceae

Hibiscus syriacus ‘Red Heart’ is a vigorous and highly contrasting ornamental shrub, renowned for its large, brilliant white flowers adorned with a distinct dark red heart. This classic variety offers abundant and long-lasting summer blooms, bringing brightness and structure to the garden. Its upright and robust habit makes it an excellent choice for tall flowering hedges, privacy screens, or specimen planting. The deciduous dark green foliage perfectly highlights the blooms and supports regular and sustained growth. Highly attractive to pollinators, ‘Red Heart’ is also appreciated for its reliability and longevity. Well-suited to Quebec’s climatic conditions, it prefers a sunny exposure and well-drained soil to fully express its vigor and strong visual impact.

Care guide

Growing conditions

Light, soil, water and hardiness

Hardiness zone
Zone 5
Exposure
Sun
Watering
Regular watering
Fertilization
Slow-release fertilizer 14-7-14 or 4-2-8. Fertilize monthly or as directed on the bag. Add Myke at planting.
Soil type
Neutral to slightly alkaline, well drained
Minimum temperature
'-28°C
Plant appearance

Blooming, foliage and shape

Blooming period
Summer
Flower color
White
Fruiting
Decorative dry seed pods
Foliage color
Green
Foliage type
Obsolete
Shape
Shrubby
Garden structure

Size and growth

Height
2 to 3 m (6 to 10 feet)
Width
2.5 m (8 feet)
Growth rate
average
Pet friendly
Safe for pets

Pets

Pollinators
Attracts or supports pollinating insects

Pollinators

Butterflies
Plants that attract butterflies

Butterflies

Hummingbirds
Flowers that attract hummingbirds

Hummingbirds

The availability of our plants varies depending on arrivals, seasons, nursery production and supplier availability. Some varieties may be offered for a limited time only, depending on their natural cycle or current stock. These plant profiles are designed to guide and inspire you when choosing plants for the garden, landscaping projects, containers or long-lasting outdoor arrangements.