The Botanical Diary
S
Shrubs

Syrian Hibiscus

Hibiscus syriacus
Also known asrose of Sharon, shrub althea

The national flower of South Korea, known as Mugunghwa (hibiscus)

Regions
Centre, South, West
Colour
pink, white, ліловий, двокольоровий
Syrian Hibiscus (rose of Sharon, shrub althea)
🌸
Bloom
July–October
☀️
Light
Full sun
💧
Watering
Moderate
📏
Height
2–3 m
❄️
Hardiness
Zone 5b

Rose of Sharon, or Syrian Hibiscus, is a charming shrub that has graced gardens for centuries. Originating from the warm regions of Asia, it has long captivated gardeners worldwide with its remarkable hardiness and generous flowering. In July, when most spring blossoms have already faded, this hibiscus launches its spectacular display, producing pink, white, lilac, and bicoloured flowers right up until the first frosts arrive.

It is truly the queen of the summer garden — exquisite flowers with silky stamens and extraordinary grace await you each morning. Plant breeders have cultivated dozens of varieties, from simple single blooms to opulent doubles, from solid colours to striking colour combinations. Some varieties can be regarded as genuine sculptures of nature, so refined are their forms. In a sunny location, the shrub transforms into a cloud of flowers, and its natural grace make it indispensable in landscape design.

In the garden, Rose of Sharon will find an honourable place alongside butterfly bush, tree mallow, or roses — these plants beautifully complement one another with their colours and structure. It looks equally striking in graceful compositions of Western European-style gardens and in traditional Ukrainian cottage gardens, where our grandmothers treasured it long ago. The shrub copes with far from ideal conditions, requiring only moderate watering and a sunny location.

Interestingly, in South Korea this hibiscus is revered as the national flower and is called Mugunghwa. For the Ukrainian gardener, this is wonderful news — a plant that connects us with distant cultures, takes up little space, yet gifts us with boundless joy and colour from summer until autumn.

Location & soil

Syrian Hibiscus — planting & location

LightFull sun
Soil typeСуглинок, рН 6–7,5
Planting timeApril або October
Plant spacing1,5–2 m
Planting depthAt root collar level

Flowers from summer until frost

Water needs

How to water Syrian Hibiscus

IntensityModerate
FrequencyEvery 7 days (в)
Volume12–15
MethodAt the base

Avoid waterlogging

Annual care

Fertilizing and pruning: Syrian Hibiscus

Spring fertilizingNitrogen (April)
Summer fertilizingPhosphorus and potassium (August)
Autumn fertilizingNo feeding required
Pruning timeApril (до набухання бруньок)
Pruning typeShaping

Cut back by one-third to stimulate flowering

Cold hardiness

Syrian Hibiscus — winter hardiness & care

Hardiness zoneZone 5b
Winter coverHorticultural fleece plus peat mulch 15 cm deep
Cover timingNovember
Plant protection

Diseases and pests of Syrian Hibiscus

Diseases
Chlorosisвертіцільоз
Pests
AphidWhitefly
Garden design

What grows well with Syrian Hibiscus?

Буддлея, лаватера, рожа