Trees and shrubs

Hibiscus

Rose of Sharon

Title

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Exposure
Sun
Hardiness
Zone 5

Discover the plant

Common nameHibiscus
FamilyMalvaceae
GenusHibiscus
SpeciesSyriac
CultivarHélène
TypeShrub
Botanical nameRose of Sharon

Hibiscus 'Helene' (Hibiscus syriacus 'Helene'). Hibiscus syriacus 'Helene' is a sterile, free-flowering variety that produces large, pure white single flowers with a raspberry-red center. Thanks to the absence of seeds, its flowering is continuous and clean from mid-summer until the first frosts. Its upright and well-branched habit makes it an excellent shrub for mixed hedges, standalone plantings, or flowering backdrops. Very hardy, it resists diseases and climatic stress. 'Helene' is an elegant and easy option for bright gardens.

To plant hibiscus 'Helene', choose a suitable exposure: full sun. The recommended soil is neutral to slightly alkaline, well-drained. Water the root ball before planting and ensure that water can drain after planting. During establishment, check the moisture by hand before watering again. Spread mulch around the base, leaving the collar clear. Avoid systematic fertilizer applications without considering soil richness. In Quebec, choose a period when the ground is thawed and easy to work. In hot weather, monitor newly planted plants more frequently.

Allow a width of 2.5 m (8 feet) to plan for this plant in the garden. The indicated height of 2 to 3 m (6 to 10 feet) helps choose its position relative to neighboring plants. Keep access to the base for weeding, checking moisture, and removing damaged parts. Associate this variety with plants whose light and water needs are compatible. If you are considering a container, first check that its volume and drainage are suitable for root development. Roots in pots are more exposed to cold than those planted directly in the ground.

Hibiscus ‘Helene’ (Hibiscus syriacus)

Soil and care

The right care,at the right time.

Minimum temperature

'-28°C

Watering

Regular watering

Soil type

Neutral to slightly alkaline, well drained

Fertilization

Slow-release fertilizer 14-7-14 or 4-2-8. Fertilize monthly or as directed on the bag. Add Myke at planting.

Bloom and dimensions

Its place,in your garden.

Mature height

2 to 3 m (6 to 10 feet)

Width / spread

2.5 m (8 feet)

Flower color

White

Foliage color

Green

Foliage type

Obsolete

Growth rate

average

Growth habit

Shrubby

Bloom period

Summer

Fruiting

Very discreet brown fruits.

Wildlife and pets

Life,around your plants.