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Helianthus annuus 'Holiday'

Family Name: Asteraceae (Compositae)
Full Sun Moderate Water Ornamental Flowers Annual Herbaceous Plant

Name

Family Name
Genus Epithet
Species Epithet
Infraspecific Epithet
Comments

Classifications and Characteristics

Plant Division Angiosperms (Flowering Seed Plants) (Dicotyledon)
Plant Growth Form Herbaceous Plant
Lifespan (in Singapore) Annual
Mode of Nutrition Autotrophic
Maximum Height 1.2 m

Description and Ethnobotany

Growth Form Large herbaceous annual up to 1.2 m tall.
Foliage Large leaves are egg-shaped to heart-shaped.
Stems The main stem produces many flowering, non-branching side shoots.
Flowers Head inflorescence with golden yellow petal-like ray florets and dark brown to black center (disk florets).
Fruits The dry, indehiscent fruit contains a single seed and is known as an achene.
Cultivation It grows best in full sun, but tolerates semi-shade. Seeds germinate within 5 days and flowers bloom at 10-12 weeks. One plant will produce multiple flowers if the central bud is removed.
Ethnobotanical Uses Cut - Dried Flower ( This cultivar is an excellent choice for cut flowers, because a single stem produces several flowering shoots.)

Landscaping Features

Desirable Plant Features Ornamental Flowers

Plant Care and Propagation

Light Preference Full Sun
Water Preference Moderate Water
Propagation Method Seed
Seed or Spore Germination Duration To 5
Seed or Spore Germination Duration Unit Days

Image Repository

Images

Others

Master ID 32749
Species ID 7161
Flora Disclaimer The information in this website has been compiled from reliable sources, such as reference works on medicinal plants. It is not a substitute for medical advice or treatment and NParks does not purport to provide any medical advice. Readers should always consult his/her physician before using or consuming a plant for medicinal purposes.
Species record last updated on: 20 August 2021.
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