Photo by Melody

PlantFiles: Winter Hazel
Corylopsis 'Winterthur'

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


6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)
10-12 ft. (3-3.6 m)

8-10 ft. (2.4-3 m)

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

Unknown - Tell us

Bloom Color:
Bright Yellow

Bloom Time:
Late Winter/Early Spring


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:

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


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive VA_GARDEN 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.


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

Millbrook, New York
Cincinnati, Ohio
Hood, Virginia

We recommend Firefox
Overwhelmed? There's a lot to see here. Try starting at our homepage.

[ Home | About | Advertise | Media Kit | Mission | Featured Companies | Submit an Article | Terms of Use | Tour | Rules | Privacy Policy | Contact Us ]

Back to the top

Copyright © 2000-2015 Dave's Garden, an Internet Brands company. All Rights Reserved.

Hope for America