Helianthus, Annual Sunflower, Common Sunflower
Helianthusannuus 'Goliath'

Category
Annuals

Water Requirements
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Sun to Partial Shade

Foliage

Foliage Color

Height
8-10 ft. (2.4-3 m)
10-12 ft. (3-3.6 m)

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

Hardiness
Not Applicable

Where to Grow

Danger
N/A

Bloom Color
Bright Yellow

Bloom Characteristics
Flowers are good for cutting
This plant is attractive to bees, butterflies and/or birds

Bloom Size

Bloom Time
Mid Summer
Late Summer/Early Fall

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 seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored