Corylopsis, Winter Hazel 'Winterthur'

Corylopsis

Genus
Corylopsis (kor-uh-LOP-sis)
Synonym
Sun Exposure
Sun to Partial Shade
Foliage
Deciduous
Smooth
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)
Bloom Color
Bright Yellow
Bloom Time
Late Winter/Early Spring
Other Details
Category
Shrubs
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Flowers are fragrant
Bloom Size
Other details
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 is said to grow outdoors in the following regions:

Millbrook, New York

Cincinnati, Ohio

Hood, Virginia

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Gardener's Notes:

1
positive
0
neutral
0
negative
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Hood, VA (Zone 7a) | April 2013 | positive

This is a gorgeous shrub in the early spring, covered with lovely, lemon-yellow blossoms dangling from otherwise naked stems. After almo...Read More

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