Fothergilla Hybrid, Bottlebrush, Dwarf Fothergilla, Dwarf Witch Alder 'Blue Shadow'

Fothergilla× intermedia

Genus
Fothergilla (foth-er-GIL-la)
Synonym
Sun Exposure
Sun to Partial Shade
Light Shade
Partial to Full Shade
Foliage
Deciduous
Height
4-6 ft. (1.2-1.8 m)
Spacing
36-48 in. (90-120 cm)
Hardiness
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
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)
Bloom Color
White/Near White
Bloom Time
Late Winter/Early Spring
Mid Spring
Other Details
Category
Shrubs
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Blue-Green
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)
Patent Information
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
Properly cleaned, seed can be successfully stored
Regional

This plant is said to grow outdoors in the following regions:

Westport, Connecticut

Plainfield, Illinois

Jamaica Plain, Massachusetts

Saint Paul, Minnesota

Cleveland, Mississippi

Morrisville, Pennsylvania

Wilkes Barre, Pennsylvania(2 reports)

Jamestown, Rhode Island

Chandler, Texas

Lexington, Virginia

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Gardener's Notes:

5
positives
1
neutral
0
negative
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V
(Zone 8a) | April 2022 | positive

It is a beautiful plant. Distinct blue foliage which looks great against green foliage plants. The winter color wasn’t spectacular bu...Read More

J
Jamestown, RI | June 2021 | positive

The foliage is a vivid icy blue green, unlike the more subtle coloring of ‘Mount Airy.’ The blue color is equal to and perhaps better...Read More

C
ROSLINDALE, MA | February 2015 | positive

Few plants have such vividly glaucous blue foliage. Unlike F. 'Blue Mist', it colors vividly in the fall. Easy to root like its parent 'M...Read More

R
Horton, MI (Zone 5b) | May 2014 | positive

I have two of these planted on opposite sides of my paperbark maple and it's a great combination. The foliage is beautiful in the summer ...Read More

T
Westport, CT | December 2007 | positive

Leaves are glaucous blue-green, water beads beautifully after a rain. Prefers moist soil. Slow growing to 5ft. in 10 years. White flow...Read More

B
Lakemont, GA (Zone 8a) | March 2007 | neutral

This plant is a branch sport of Mike Dirr's strong growing selection Fothergilla major ‘Mount Airy.’

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