Asteraceae
Helianthus debilis subsp. cucumerifolius
Helianthus debilis subsp. cucumerifolius
Also known as Helianthus debilis var. cucumerifolius, Helianthus cucumerifolius, Helianthus debilis f. cucumerifolius
Flowering Plants · Native Plants · Sunflower · Helianthus · Wildflower · Cottage Garden · Yellow · Daisy · Pollinator · Annual-Like · Border Plant · Cut Flower
The cucumber-leaf sunflower is a cheerful, easy-care annual-like perennial that thrives in full sun to part shade with average moisture. Plant it in well-drained soil and water regularly during dry spells to keep it blooming. Deadhead spent flowers to extend the long summer-to-fall bloom season.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water deeply until soil is moist, then allow top inch to dry before rewatering · Every 7-10 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 5.2–7.2
- Temperature
- -20°F to 90°F
- Cycle
- Perennial
Hardiness
USDA 5a-9b
Form & growth
Mature size and habit
- Mature height
- 18 in – 3 ft
- Spread
- 2 ft
- Spacing
- 18 in apart
- Growth rate
- Slow
- Root depth
- Medium
- Flowers
- Yes
- Foliage
- Coarse
Ecology & origin
Where it belongs and what it brings
- Native to
- Austria, Azores, Connecticut, Cuba, Czechoslovakia, Florida, France, Georgia, India, Jawa, Korea, KwaZulu-Natal, Louisiana, Maryland, Masachusettes, Michigan, Mozambique, New Hampshire, New York, North Carolina
- Attracts
- Bees, Butterflies, Birds
Sources: trefle, usda
More Helianthus
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Helianthus nuttallii subsp. rydbergii
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