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Hibiscus

Hibiscus

Hibiscus rosa-sinensis · H. syriacus · H. moscheutos-Hybr.

Garden Balcony Indoor Sun Partial shade ShrubMedium

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Profile

Plant group
Flowering woody plants and perennials
Growth & habit
Tropical hibiscus is a woody container shrub; rose of Sharon forms a deciduous garden shrub. Hardy herbaceous hibiscus renews its above-ground shoots from the rootstock each year.
Foliage
Leaf shape helps distinguish types: tropical hibiscus usually has glossy, entire leaves, while rose of Sharon often has three lobes. Herbaceous types vary considerably in size and lobing.
Family
Mallow family · Malvaceae
Origin
Tropical Asia, East Asia and North America, depending on species
Height
Often 0.8–2 m in pots; rose of Sharon usually 2–4 m; herbaceous types vary
Bloom
Usually May to October; exact timing depends on species, cultivar and cultivation
Toxicity
Do not identify ornamental plants as food; culinary use requires a reliably identified edible species

Care calendar

Leaf emergence

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

Garden and herbaceous types may leaf out late; tropical hibiscus grows with warmth and light.

Flowering / flower development

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

Broad group window: tropical, woody and herbaceous types flower at different times.

Leaf fall

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

Rose of Sharon loses leaves; herbaceous types die back. Tropical hibiscus remains evergreen in suitable conditions.

Pruning & growth habit

  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

Prune by growing type before new growth; on herbaceous types remove only dead previous-year stems.

Guidance for Germany and Central Europe. Position, weather, species and cultivar shift these windows; indoor and container plants also depend on their winter conditions.

Your seasonal care plan

  • Prepare for the right type of growth

    Mar · Apr · May

    Distinguish tropical hibiscus, rose of Sharon and herbaceous hibiscus. Shape woody types selectively before new growth; remove only dead previous-year stems from herbaceous plants, preserving fresh basal shoots. Allow for late growth in garden types.

  • Care for roots and buds

    Jun · Jul · Aug

    Keep the root ball appropriately moist and let excess water drain. Acclimatise containers gradually to stronger outdoor light. If buds fall, first check dryness, cold and changes of position; feed only to suit active growth and the product label.

    View product dosage and application →

  • Choose winter care by hibiscus type

    Sep · Oct · Nov

    Move tropical hibiscus to a bright, frost-free place before frost. Rose of Sharon and hardy herbaceous types remain outdoors as appropriate for their species and cultivar. Do not treat leaf fall in garden shrubs or herbaceous dormancy as the winter pattern for tropical hibiscus.

  • Check winter quarters and roots

    Dec · Jan · Feb

    Check light, root-ball moisture and leaf undersides regularly on tropical hibiscus; water less when growth slows. Protect container-grown garden types from damaging wet conditions and severe root-zone freezing. Retain the distinction between their winter requirements.

Highlighted months are guidance, not fixed dates. Observe the plant, root ball and weather; water, feed and repot according to actual need.

Seasonal care intensity

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal guidance for Germany. Needs depend on location, weather and species. Check moisture in winter too; these markers are not a feeding schedule.

Peak care Active Reduced care

Care tips

  • Identify the growing type before buying.
  • Check root-ball moisture and keep drainage open.
  • Choose winter care and pruning by species.

Fruit & harvest

Fruit and seed formation

Garden hibiscus can form dry, multi-part seed capsules. Fruit set varies among species and cultivars, especially double-flowered or sterile selections. Profuse flowering therefore does not guarantee seed.

Harvest and use

The ornamental hibiscus covered here does not carry a general harvesting recommendation. Tea hibiscus and other culinary species require separate identification; their uses cannot automatically be transferred to H. rosa-sinensis or garden hybrids.

Plant knowledge at a glance

Position, benefits & character

Position & soil

Choose bright, warm positions with free-draining roots and appropriate moisture. Acclimatise tropical container plants to outdoor light; hardy herbaceous types should not automatically be kept as dry as Mediterranean subshrubs.

Distinctive features

A prominent staminal column stands at the flower centre. Individual flowers are short-lived while the plant may produce new buds over a longer period. Species identity and winter care matter more than flower colour.

Benefits

Individual flowers create strong colour accents; open, single flowers are more accessible to flower visitors than densely double cultivars. Garden types can form informal flowering hedges.

Partners & symbioses

Flower visitors and pollination vary with species and flower form. No fixed companion plant is required for cultivation; light, space and healthy soil determine suitable combinations.

Pruning & growth habit

Tropical hibiscus is a woody container shrub; rose of Sharon forms a deciduous garden shrub. Hardy herbaceous hibiscus renews its above-ground shoots from the rootstock each year.

  1. 1. Identify the growing type

    First distinguish woody tropical hibiscus, rose of Sharon and dormant herbaceous plants.

  2. 2. Shape woody types selectively

    In late winter remove dead and badly positioned branches; shorten live shoots above a suitable bud.

  3. 3. Protect the perennial crown

    Remove dead previous-year stems near ground level before new growth. Do not cut emerging basal shoots.

Nursery forms

This overview explains nursery supply forms. It does not indicate current availability in the GREEN24 shop.

Bare-root

Not typical for this profile

Not a typical nursery form for this plant.

Root-balled

Not typical for this profile

Not a typical nursery form for this plant.

Container-grown

Common form

Common potted and container-grown stock of all three types.

Young plant

Common form

Rooted young plants; check the growing type on the label.

Shrub

Common form

Rose of Sharon and tropical hibiscus as branched shrubs.

Feathered tree

Not typical for this profile

Not a typical nursery form for this plant.

Half-standard

Ask a specialist nursery

Woody types are available as small standards.

Standard

Ask a specialist nursery

Selected rose-of-Sharon cultivars as standards.

Topiary

Not typical for this profile

Not a typical nursery form for this plant.

Propagation & grafting

Propagation

Propagate tropical hibiscus from suitable stem cuttings. Depending on cultivar, rose of Sharon can be raised from cuttings or seed; seedlings do not reliably come true. Herbaceous hybrids can also be divided.

Grafting

Possible for selected woody cultivars and standards. A straight stem alone does not prove grafting; check the visible union and nursery information.

Species & cultivars

Hibiscus rosa-sinensis

Tropical hibiscus; frost-free cultivation.

Hibiscus syriacus 'Diana'

White-flowering rose of Sharon; woody and deciduous.

Hibiscus moscheutos-Hybriden

Large-flowered herbaceous types with renewed shoots each year.

Pests & diseases

These signs support an initial assessment. Different causes may look alike; choose a treatment only after identifying the problem.

Aphids and spider mites

Inspect young shoots and leaf undersides, especially in winter accommodation.

Roots in persistently wet compost

Sour compost, weak shoots and soft roots call for checking drainage and the root ball.

Buds dropping

Check changes of position, dryness and cold; bud drop does not identify a nutrient deficiency.

Hardiness · USDA

Three growing types, different winter care

Keep tropical hibiscus frost-free and bright, typically around 7–10°C or warmer in container cultivation. Rose of Sharon is hardy; check cultivar and root protection for herbaceous hybrids. USDA ratings do not replace container winter care.

Hibiscus rosa-sinensis
USDA 9a–11bGuidance for this species; also consider cultivation, cultivar and root protection.
Hibiscus syriacus
USDA 5a–9bGuidance for this species; also consider cultivation, cultivar and root protection.

USDA zones describe long-term average winter extremes. Containers, young plants, wet soil, wind and late frost need separate consideration.

Understand USDA zones and maps →

A closer look

Rose of Sharon flower
Flower

Rose of Sharon flower

Hibiscus syriacus with a pale violet, partly double flower and dark basal markings. An example from the diverse hibiscus group, not a cultivar identification.

Didier Descouens · CC BY-SA 4.0 · Image source

Botanical features vary with age, species and cultivar.

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