Mysore Thorn
Caesalpinia decapetala var. japonica

Family: Caesalpiniaceae (ses-al-pin-ee-AY-see-ee) (Info)
Genus: Caesalpinia (ses-al-PIN-ee-uh) (Info)
Species: decapetala var. japonica

Category:

Shrubs

Vines and Climbers

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Suitable for growing in containers

Height:

8-10 ft. (2.4-3 m)

20-30 ft. (6-9 m)

Spacing:

24-36 in. (60-90 cm)

10-12 ft. (3-3.6 m)

Hardiness:

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)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Danger:

Seed is poisonous if ingested

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

Bloom Color:

Pale Yellow

Bright Yellow

Chartreuse (Yellow-Green)

Bloom Time:

Late Winter/Early Spring

Mid Spring

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Blooms repeatedly

Foliage:

Deciduous

This plant is resistant to deer

Other details:

May be a noxious weed or invasive

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

From seed; sow indoors before last frost

Scarify seed before sowing

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting:

Bag seedheads to capture ripening seed

Allow pods to dry on plant; break open to collect seeds

Wear gloves to protect hands when handling seeds

Properly cleaned, seed can be successfully stored

Regional

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

Belmont, North Carolina

Austin, Texas

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On May 2, 2008, saltcedar from Austin, TX (Zone 8b) wrote:

________________This plant should only be used with great caution._________________
It's considered invasive in most tropical and subtropical countries where it's been introduced.
It's extreme thorniness is problematic in garden setting where it's long willowy branches can
reach out and grab skin or clothing. Removing the recurved prickles can result in torn skin or
clothing. It's flowering though almost makes up for those faults if one takes care to see that it's
seeds never leave the garden. Can be grown as a freestanding shrub or vine.