Helianthus Species, Cucumber-leaf Sunflower

Helianthusdebilis subsp. cucumerifolius

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Helianthus (hee-lee-AN-thus)
Synonym
Helianthus cucumerifolius
Sun Exposure
Full Sun
Foliage
Evergreen
Provides Winter Interest
Height
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
Spacing
36-48 in. (90-120 cm)
Hardiness
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Bloom Color
Bright Yellow
Bloom Time
Blooms all year
Blooms repeatedly
Other Details
Category
Groundcovers
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Propagation Methods
From herbaceous stem cuttings
From seed; direct sow outdoors in fall
From seed; direct sow after last frost
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Grayslake, Illinois

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Gardener's Notes:

1
positive
0
neutral
0
negative
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Grayslake, IL (Zone 5a) | September 2009 | positive

Even with the chipmunks digging up and trampling the seedlings, a couple of them made it. Multiple flowers per stem, very pretty cream t...Read More

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