Photo by Melody

PlantFiles: Double thin-leaved Sunflower
Helianthus x multiflorus 'Loddon Gold'

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Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Helianthus (hee-lee-AN-thus) (Info)
Species: x multiflorus
Cultivar: Loddon Gold

2 members have or want this plant for trade.

Category:
Perennials

Height:
4-6 ft. (1.2-1.8 m)

Spacing:
18-24 in. (45-60 cm)

Hardiness:
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
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)

Sun Exposure:
Full Sun

Danger:
Handling plant may cause skin irritation or allergic reaction

Bloom Color:
Bright Yellow

Bloom Time:
Mid Summer
Late Summer/Early Fall

Foliage:
Herbaceous
Blue-Green
Veined

Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Flowers are good for cutting

Soil pH requirements:
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
From seed; direct sow after last frost

Seed Collecting:
Collect seedhead/pod when flowers fade; allow to dry

Click thumbnail
to view:

By lmelling
Thumbnail #1 of Helianthus x multiflorus by lmelling

By micheflowers
Thumbnail #2 of Helianthus x multiflorus by micheflowers

Profile:

2 positives
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive micheflowers On May 15, 2011, micheflowers from Peoria, IL (Zone 5b) wrote:

This is a lovely plant. The stems are strong and sturdy and
the flowers are a double deep gold. Spreads but slowly.

Positive lmelling On Jan 18, 2005, lmelling from Ithaca, NY (Zone 5b) wrote:

Clump forming, fast growing with lance-shaped to ovate, slightly hairy, dark green leaves that can get up to 8" long. Flowerheads are double, bright yellow and bloom from midsummer to early autumn. Can get up to 5' tall.

I was given a 6" clump of these to plant by a neighbor in 2001, the picture shows this same clump in fall 2004. It is approximately 2-1/2' wide by 2' deep. In a normal year the flowers top 5', but 2004 was a poor growing year with too much rain and too many cloudy days.

Regional...

This plant has been said to grow in the following regions:

Peoria, Illinois



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