Scientific Name:
Dahlia
x
hybrida
Pronunciation:
DAH-lee-ah OR DAL-yuh
Common Name:
dahlia
Family Name:
Asteraceae
Plant Type:
Annual, Flowering cut plant
Key ID Features:
Flower heads often very large, zinnia-like, round with many petals, solitary on tall stems; leaves are opposite, most pinnately compound (unlike zinnia), with toothed ovate leaflets.
Habit:
Dense, Spreading, Stiffly upright
Form:
Oval - vertical, Round
Texture:
Coarse
Mature Height:
0.7 - 1.3m
Mature Spread:
0.3 - 0.6m
Growth Rate:
Fast
Origin:
Garden origin (unknown parentage involving species originally from Middle America)
Hardiness Rating:
Zone 8b: (-9.4 to -7 °C)
Exposure:
Full sun
Soil/Growing Medium:
Well-drained
Water Use:
Moderate
Landscape Uses:
Accent plant, Bedding plant, Container planting, Cut flower or foliage, Fall interest, Group or mass planting, Summer interest
Additional Info:
Leaf Morphology:
Form:
Simple, Compound
Arrangement:
Opposite
Texture/Venation:
Soft flexible
Surfaces:
Lustrous
Compound Leaf:
Odd-pinnate
Colour in Fall:
Green
Shapes:
Ovate
Apices:
Rounded
Margins:
Dentate
Inflorescence Type:
Head (capitulum), Floriferous
Flower Morphology:
Flowers perfect
Corolla Shape:
Ligulate
Ovary Position:
Inferior
Colour (petals):
Showy, White, Orange, Yellow, Violet, Pink, Red, Dark-red
Flower Scent:
None
Flower Time at Peak:
Jul, Aug, Sep, Oct
Additional Info:
Right image is of Dahlia 'Bishop of Llandaff'
Fruit Type:
Achene
Fruit Colour:
Brown
Fruiting Time:
Additional Info:
Fruit insignificant,
Bark or Stem Colour:
Organ Modifications:
Succulent stems, Tuberous roots
Propagation:
Seed, Division - below ground parts
Pest Susceptibility:
Blight or needle cast, Earwigs, Fungal leaf spot, Leafhopper or spittlebug, Mildew, Mites, Mold, Slugs or snails, Virus, Wilt (Pest resistant, Disease resistant, Rabbit resistant)
Specific Pests:
Deer
Course(s):
- HORT 1155
- Level 1 Apprenticeship
Location(s):
- (BED) BEDding, container, or basket
- (HPZ) Horticulture PlaZa : cv. Nights (2016)