Photo by Melody

PlantFiles: Calendula
Calendula suffruticosa

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Calendula (ka-LEN-dew-luh) (Info)
Species: suffruticosa (suf-roo-tee-KO-sa) (Info)

8 members have or want this plant for trade.

View this plant in a garden


6-12 in. (15-30 cm)

12-15 in. (30-38 cm)
15-18 in. (38-45 cm)

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)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Full Sun
Partial to Full Shade


Bloom Color:
Pale Yellow

Bloom Time:
Mid Summer


Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Flowers are good for cutting
Suitable for growing in containers

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; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds


2 positives
1 neutral
No negatives

Gardeners' Notes:

Neutral peejay12 On Aug 11, 2009, peejay12 from Porthleven, Helston, Cornwall
United Kingdom (Zone 9b) wrote:

This plant should not be confused with the common Calendula officinalis, or 'Pot Marigold' - which is commonly grown almost everywhere.

Calendula suffruticosa is a much larger, woody stemmed
perennial with a spreading habit of growth, but the flowers are usually disappointingly small -- with yellow rays(petals) and yellow disc (centre). However it does hybridise readily with the common marigold and the result is a large perennial with large yellow to orange flowers.

I have a bed full of these self-sown hybrids and they are rarely out of flower.

Positive MotherNature4 On Nov 17, 2007, MotherNature4 from Bartow, FL (Zone 9a) wrote:

Everything is different in Florida. In this zone 9a, we plant Calendulas in the fall to bloom all winter, unless we have a freeze. Just love the bright colors of these zinnia like flowers.

Positive threegardeners On Feb 11, 2007, threegardeners from North Augusta, ON wrote:

This is a happy little plant that blooms all summer, low enough to grow in a border. Bright yellow flowers add a flash of colour to any garden. Self seeds nicely and moves easily.


This plant has been said to grow in the following regions:

Crescent City, California
Bartow, Florida
Cicero, Indiana
Berea, Kentucky
Dry Ridge, Kentucky
Selinsgrove, Pennsylvania
Zionsville, Pennsylvania

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