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Spineless Caper
Capparis spinosa

Family: Capparaceae
Genus: Capparis (KAP-ar-iss) (Info)
Species: spinosa (spy-NO-suh) (Info)
Synonym:Capparis inermis
Synonym:Capparis rupestris
Synonym:Capparis spinosa var. inermis
Synonym:Capparis spinosa subsp. rupestris


Edible Fruits and Nuts





12-18 in. (30-45 cm)

18-24 in. (45-60 cm)

24-36 in. (60-90 cm)


Unknown - Tell us


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)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Full Sun

Sun to Partial Shade


Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:

Pale Pink

White/Near White

Bloom Time:

Mid Spring

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Blooms repeatedly


Unknown - Tell us

Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:


Propagation Methods:

From leaf cuttings

From herbaceous stem cuttings

From seed; direct sow outdoors in fall

Seed Collecting:

Unknown - Tell us


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

Palo Alto, California

Sarasota, Florida

Gardeners' Notes:


On Jun 18, 2008, gooley from Hawthorne, FL (Zone 8b) wrote:

Seems nearly impossible from seed, which is the only way I've seen to get a plant (perhaps I need to look harder). Perhaps gibberellic acid will work. Cold-stratification regimens I have tried have been unsuccessful.


On Sep 7, 2005, dovey from Columbus, OH (Zone 5b) wrote:

Plants are grown from seed and by vegetative cuttings.
From seed:
Caper seeds are miniscule and are slow to nurture into transplantable seedlings. Fresh caper seeds germinate readily - but only in low percentages. Dried seeds become dormant and are notably difficult to germinate and therefore require extra measures to grow. Dried seeds should be initially immersed in warm water (40C or 105F ) and then let soak for 1 day. Seeds should be wrapped in a moist cloth, placed in a sealed glass jar and kept in the refrigerator for 2 - 3 months. After refrigeration, soak the seeds again in warm water overnight. Plant the seeds about 1 cm deep in a loose well drained soil media. Young caper plants can be grown in a greenhouse (preferable minimum temperature of 10... read more