Winter Hazel
Corylopsis 'Winterthur'

Family: Hamamelidaceae
Genus: Corylopsis (kor-uh-LOP-sis) (Info)
Cultivar: Winterthur

Category:

Shrubs

Height:

6-8 ft. (1.8-2.4 m)

8-10 ft. (2.4-3 m)

10-12 ft. (3-3.6 m)

Spacing:

8-10 ft. (2.4-3 m)

Hardiness:

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)

Sun Exposure:

Sun to Partial Shade

Danger:

Unknown - Tell us

Bloom Color:

Bright Yellow

Bloom Time:

Late Winter/Early Spring

Foliage:

Deciduous

Smooth-Textured

Other details:

Flowers are fragrant

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Non-patented

Propagation Methods:

From softwood cuttings

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; stratify if sowing indoors

Seed Collecting:

Bag seedheads to capture ripening seed

Allow seedheads to dry on plants; remove and collect seeds

Regional

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

Millbrook, New York

Cincinnati, Ohio

Hood, Virginia

Gardeners' Notes:

1
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RatingContent
Positive

On Apr 6, 2013, VA_GARDEN from Hood, VA (Zone 7a) wrote:

This is a gorgeous shrub in the early spring, covered with lovely, lemon-yellow blossoms dangling from otherwise naked stems. After almost 10 years in my garden it is 6 feet tall and 10 feet wide with the stems growing in a graceful vase shape from a central crown. Although it is quite large, the feeling is open and airy even after it leafs out. It grows in all-day filtered shade under the high canopy of mature tulip trees. It took about a year to establish and since then I have not needed to fuss with it at all - no watering, no fertilizing, not even a need to prune it. I just leave the fall leaves in place as a mulch. The only disappointment has been that it is not fragrant, but that is far out weighed by its other virtues.