Hibiscus syriacus 'Red Heart'

Name: Hibiscus syriacus 'Red Heart'
Brand: Rainbow Plants
SKU: 5055182652351
Price: 19.99 GBP
Availability: InStock

Rose of Sharon

Large, pure white flowers with a bold ruby-red centre from midsummer into autumn make Hibiscus 'Red Heart' an exotic-looking but fully hardy shrub for a sunny border, hedge or pot.

Supplied as an established plant in a 3 litre pot

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Aspect

Full sun to partial shade

Hardiness

Fully hardy in most parts of the UK.

Flowers

Summer

Soil

Loam, clay, sand, chalk

About this plant

Exotic white blooms with a ruby heart, all summer

Description
Hibiscus syriacus 'Red Heart' is a hardy, deciduous shrub grown for its large, single, pure white flowers, each marked with a bold ruby-red centre around a creamy stamen. Borne in succession from mid to late summer into autumn, the trumpet-shaped blooms bring an exotic, almost tropical look to a fully hardy plant. Upright and vase-shaped, it makes a striking specimen, a late-summer flowering hedge, or a container plant for a sunny spot, and its late-season nectar is valuable for bees and butterflies.
Why we like it
“
'Red Heart' delivers a real touch of the tropics on a tough, fully hardy shrub. The crisp white flowers, each with a vivid red eye, open in succession over many weeks from midsummer into autumn, just when the garden can start to fade. It is easy, adaptable and reliable, coping with poor soil, heat, drought and pollution, and its late nectar is a boon for pollinators. Lovely as a specimen, an informal hedge or a patio pot.

Key features

What makes it special

Loved by bees & pollinators

Long flowering, late spring into summer

Fully hardy — comes back every year

Exotic, tropical look

Specs & details

The particulars

Botanical name: Hibiscus syriacus 'Red Heart'
Common name: Rose of Sharon
Supplied as: 3 litre pot
Flower colour: White
Eventual height: 2-2.5m (up to 3m; can be kept smaller by pruning)
Eventual spread: 1.5-2.5m
Flowering period: Summer
Habit: Upright, vase-shaped deciduous shrub
Life cycle: Deciduous shrub
Hardiness: Fully hardy in most parts of the UK.
Aspect: Full sun to partial shade
Soil type: Loam, clay, sand, chalk
Moisture: Moist but well-drained
Position: Back or mid-border, specimen, hedge or large container
Plant spacing: Usually grown as a specimen, allowing around 1.5 to 2m of space. For a hedge, plant about 1m apart.
Growing skill: Easy to grow

Plant calendar

When to plant, when it performs

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Planting

Flowering

Plant in spring or autumn. Flowers from mid to late summer into autumn, on the current season's growth. It leafs out late in spring, so do not assume it has died over winter.

Planting & care

Help it thrive

Planting guide

Plant in spring or autumn into moist but well-drained, fertile soil in full sun to partial shade. It is unfussy about soil and tolerates most types, but dislikes both waterlogging and complete drought, either of which can cause bud drop. Full sun gives the best flowering. Water in well and keep watered through the first season. Give it room to reach its full size, or prune to keep it smaller. In containers, use a loam-based compost.

Care tips

Water regularly while establishing and in dry spells, as the flower buds can drop if the plant dries out completely or sits too wet. It flowers on new growth, so prune in late winter or early spring, shortening the previous year's stems to shape the shrub and encourage larger blooms. Deadheading is not needed. If grafted, remove any shoots arising from below the graft union.

Winter care