Bigleaf Hydrangea, French Hydrangea, Mophead
Hydrangea macrophylla 'Heinrich Seidel'

Family: Hydrangeaceae (hy-drain-jee-AY-see-ee) (Info)
Genus: Hydrangea (hy-DRAIN-juh) (Info)
Species: macrophylla (mak-roh-FIL-uh) (Info)
Cultivar: Heinrich Seidel
» View all varieties of Hydrangeas

Height:

4-6 ft. (1.2-1.8 m)

Spacing:

Unknown - Tell us

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)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Sun to Partial Shade

Danger:

Parts of plant are poisonous if ingested

Bloom Color:

Magenta (Pink-Purple)

Blue-Violet

Bloom Time:

Mid Summer

Late Summer/Early Fall

Mid Fall

Foliage:

Deciduous

Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us

Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

On Dec 2, 2004, lmelling from Ithaca, NY (Zone 5b) wrote:

According to the authors of "Encyclopedia of Hydrangeas" (2004 - Timber Press)," A large shrub up to 6.5'. The corymbs are flattened and the sepals are large. In its pink or cherry red form, it is a very nice cultivar. In acid soil, it becomes mauve, or brick red. Synonyms: 'Glory of Aalsmeer' (bred by D. Baardse, Netherlands, in 1930), 'Aalsmeer's Glory'. Very similar to 'Hobergine', which was introduced by Hofstede. Introduced by F. Matthes, Germany, in 1929 and probably renamed by Baardse in 1930."

No zone hardiness given.

Other notes: fringed, free-flowering; mid-season. Has a "frilly" look. Cold sensitive.