Photo by Melody

PlantFiles: Hollyhock
Alcea rosea 'Summer Carnival Mix'

Family: Malvaceae (mal-VAY-see-ee) (Info)
Genus: Alcea (al-KEE-uh) (Info)
Species: rosea (RO-zee-uh) (Info)
Cultivar: Summer Carnival Mix

Synonym:Althaea rosea

9 members have or want this plant for trade.


4-6 ft. (1.2-1.8 m)

9-12 in. (22-30 cm)

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)

Sun Exposure:
Full Sun

Handling plant may cause skin irritation or allergic reaction

Bloom Color:
Pale Yellow
White/Near White

Bloom Time:
Mid Summer
Late Summer/Early Fall


Other details:
This plant is attractive to bees, butterflies and/or birds
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season

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:
Unknown - Tell us

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

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored

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By TwinLakesChef
Thumbnail #1 of Alcea rosea by TwinLakesChef

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There are a total of 19 photos.
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2 positives
2 neutrals
No negatives

Gardeners' Notes:

Positive Oberon46 On Aug 29, 2012, Oberon46 from (Mary) Anchorage, AK (Zone 4b) wrote:

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 blooms next year and then no plant the following year. Hope they self seed as others say. The flowers are gorgeous, like crepe paper and 3" across. I get about 5-6 at a time. the leaves do get that funny orange stuff on them which I assume is the scale that others refer to. We have fairly wet cool summers (55-65F on average)

Neutral sketchkat06 On Aug 30, 2010, sketchkat06 from Lawndale, CA (Zone 10a) wrote:

The blooms came out really frilly just as described. They really needed staking support not to flop over. My disappointment with them was that only two or three buds would flower at a time on each stalk, I was hoping to have a tower of blooms at once :/

Warning for southern California: I had serious trouble with scale infesting my hollyhocks and the rubbing alcohol didn't work to get them off. The plants made it to bloom and seed, but the scale seriously uglified the leaves :/

Neutral berrygirl On Mar 22, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:

HOLLYHOCK - Alcea SUMMER CARNIVAL Shortest at 30" Plant 18" apart. Zone 3-9. Blooms first year with double flowers in red ,white, yellow, pink and purple.
Plant Care:
Although biennial, just allow seeds to fall and the clump will persist for many many years. Rust can be a problem in high humidity. Best selection for the coldest areas (zones 3 & 4), not for the gulf states. Plants can be cut back by one-half when 15-18" high to control height.

Positive orange_knickers On Dec 17, 2005, orange_knickers from Portland, OR (Zone 8b) wrote:

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 whatsoever! I will be growing again! Although I am not sure if these will loose color and revert to white in the second year, like most of this type do. I will report back.


This plant has been said to grow 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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