Alcea, Common Hollyhock, Garden Hollyhock 'Mixed Hybrids, Noids'

Alcearosea

Family
Malvaceae (mal-VAY-see-ee)
Genus
Alcea (al-KEE-uh)
Species
rosea (RO-zee-uh)
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
6-8 ft. (1.8-2.4 m)
Spacing
24-36 in. (60-90 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
Pink
Red
Pale Yellow
White/Near White
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Biennials
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
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
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:

Arley, Alabama

Mesa, Arizona

Phoenix, Arizona

Scottsdale, Arizona

Fayetteville, Arkansas

Fremont, California

Glen Avon, California

Merced, California

Pedley, California

Richmond, California

Rubidoux, California

Sacramento, California

Sunnyslope, California

Aurora, Colorado

Colorado Springs, Colorado

Denver, Colorado

Fort Lauderdale, Florida

Miami, Florida

Brunswick, Georgia

Hawkinsville, Georgia

Tennille, Georgia

Kalona, Iowa

Lacona, Iowa

Carlisle, Kentucky

Smiths Grove, Kentucky

West Friendship, Maryland

Swansea, Massachusetts

Saint Cloud, Minnesota

Ridgeland, Mississippi

Savannah, Missouri

Sunburst, Montana

Las Vegas, Nevada

Auburn, New Hampshire

Jersey City, New Jersey

Morristown, New Jersey

Socorro, New Mexico

East Aurora, New York

Elba, New York

Fairport, New York

Pulaski, New York

Havelock, North Carolina

Lake Toxaway, North Carolina

Winston Salem, North Carolina

Mount Orab, Ohio

Painesville, Ohio

Warren, Ohio

Williamsburg, Ohio

Guthrie, Oklahoma

Hulbert, Oklahoma

Oklahoma City, Oklahoma

Bend, Oregon

Klamath Falls, Oregon

Florence, South Carolina

Spartanburg, South Carolina

Hendersonville, Tennessee

Austin, Texas

El Paso, Texas

Fort Worth, Texas

Midland, Texas

Camas, Washington

East Port Orchard, Washington

Parkwood, Washington

Port Orchard, Washington

Spokane, Washington

Delavan, Wisconsin

show all

Featured Videos

Gardener's Notes:

5
positives
4
neutrals
1
negative
Sort By:
Sort By:
S
Mesa, AZ | March 2011 | neutral

I'm giving this plant a neutral rating for now because it's taking it's own sweet time when it comes to flowering. I planted hollyhocks ...Read More

C
West Friendship, MD (Zone 6b) | February 2006 | negative

Enjoy these in moderation and do not allow this plant to escape your control. When we moved into this house, the garden lining the drive...Read More

G
(Zone 5a) | January 2006 | positive

I have Hollyhocks planted to "hide" my compost pile. When they are through blooming, I cut them back, and when they grow back, they rebl...Read More

G
Fairport, NY | August 2005 | positive

Hollyhocks are just a natural in historic and traditional landscapes. I sowed this biennial near some of the historic structures in our c...Read More

W
W
El Paso, TX (Zone 8a) | March 2005 | neutral

These flowers will grow like a weed in the W. Texas/E. New Mexico area. These flowers will thrive with no effort at all, in fact you may...Read More

B
Riverside, CA | January 2004 | positive

Had problems with gophers killing my hollyhocks by eating the roots and under parts of the plants until I planted garlic and onions ...Read More

C
(Zone 10b) | December 2003 | neutral

Although I thought my Hollyhocks were beautiful, I had to take them out. They grow very large and take up a lot of room in the garden, b...Read More

S
Socorro, NM | July 2003 | positive

This plant does extremely well in a hot, dry climate. It grows naturally without any attention so enthusiastically that many people in c...Read More

M
Moorestown, NJ (Zone 7b) | June 2002 | positive

Once established, these plants grow prolifically.
The seeds need LIGHT in order to germinate so do not cover them with soil, but...Read More

G
Ladysmith, BC (Zone 8a) | August 2001 | neutral

Biennial hollyhocks can be deadheaded to prompt them to act more like perennials.

Even if you don't want to keep up with r...Read More

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