Alcea, Double Hollyhock, Garden Hollyhock 'Chater's Double Mix'

Alcearosea

Family
Malvaceae (mal-VAY-see-ee)
Genus
Alcea (al-KEE-uh)
Species
rosea (RO-zee-uh)
Synonym
Althaea rosea
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
4-6 ft. (1.2-1.8 m)
Spacing
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)
Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
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
Pale Pink
Pink
Rose/Mauve
Red
Scarlet (dark red)
Pale Yellow
Bright Yellow
White/Near White
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Biennials
Perennials
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Bloom Characteristics
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
Propagation Methods
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; sow indoors before last frost
From seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Collect seedhead/pod when flowers fade; allow to dry
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored
Regional

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

Baywood-Los Osos, California

Grass Valley, California

Oak View, California

Watertown, Connecticut

Atlanta, Georgia

Braselton, Georgia

Jesup, Georgia

Chicago, Illinois

Indianapolis, Indiana

Boston, Massachusetts

Pinconning, Michigan

Greeley, Nebraska

Bridgewater, New Jersey

Mahopac, New York

Candler, North Carolina

Hillsborough, North Carolina

Cincinnati, Ohio

Norristown, Pennsylvania

Hillsville, Virginia

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Gardener's Notes:

3
positives
1
neutral
0
negative
Sort By:
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E
Los Osos, CA | August 2008 | neutral

I have problems with snails and caterpillars eating my hollyhocks. I don't kill any bugs in my yard so I just try to get things that are...Read More

D
Atlanta, GA | August 2008 | positive

Absolutely beautiful blooms...and easy to grown. Mine didn't bloom the first year but wowed me this year. :-D BTW, the seeds are very h...Read More

L
Bridgewater, NJ | July 2008 | positive

These are beautiful. I had mine in clay soil, 6 hours of sun a day, no additional water and they seemed very happy. I grew them from seed...Read More

O
Oak View, CA | August 2007 | positive

I have grown these hollyhocks for about forty years. I would save the seeds from year to year, and then plant them along my garage in Sh...Read More

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