Alcea, Common Hollyhock, Garden Hollyhock 'Summer Carnival Mix'

Alcearosea

Family
Malvaceae (mal-VAY-see-ee)
Genus
Alcea (al-KEE-uh)
Species
rosea (RO-zee-uh)
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
Succulent
Height
24-36 in. (60-90 cm)
Spacing
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)
Danger
Handling plant may cause skin irritation or allergic reaction
Bloom Color
Pink
Rose/Mauve
Red
Coral/Apricot
Pale Yellow
Medium Purple
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
Grow outdoors year-round in hardiness zone
Can be grown as an annual
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
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:

Anchorage, Alaska

Hereford, Arizona

Saint David, Arizona

Knights Landing, California

Lawndale, California

Loveland, Colorado

Chillicothe, Illinois

Shepherdsville, Kentucky

Livonia, Michigan

Pinconning, Michigan

Marshall, North Carolina

Bucyrus, Ohio

Warren, Ohio

Hulbert, Oklahoma

Spencer, Oklahoma

Johnsonburg, Pennsylvania

Knoxville, Tennessee

La Vergne, Tennessee

San Antonio, Texas

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Gardener's Notes:

2
positives
2
neutrals
0
negative
Sort By:
Sort By:
O
(Mary) Anchorage, AK (Zone 4b) | August 2012 | positive

I planted some this spring and have plants with some buds but fairly short. I didn't know they were biennial so I assume I will have blo...Read More

S
Los Angeles County, CA (Zone 10a) | August 2010 | neutral

The blooms came out really frilly just as described. They really needed staking support not to flop over. My disappointment with them was...Read More

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

HOLLYHOCK - Alcea SUMMER CARNIVAL Shortest at 30" Plant 18" apart. Zone 3-9. Blooms first year with double flowers in red ,white, yellow,...Read More

O
Joseph, OR (Zone 5a) | December 2005 | positive

From a February sowing in my basement in 2005, I had 6, 5-6' plants full of flowers by August 2005! Great color and no disease whatsoeve...Read More

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