Disocactus 'Amecamensis'

Disocactus speciosus

Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Disocactus (dy-soh-KAK-tus) (Info)
Species: speciosus (spee-see-OH-sus) (Info)
Cultivar: Amecamensis
Synonym:Heliocereus speciosus
Synonym:Disocactus speciosus f. amecamensis
Synonym:Heliocereus speciosus var. amecamensis
Synonym:Cereus amecamensis
Synonym:Cereus speciosus var. amecamensis


Tropicals and Tender Perennials

Cactus and Succulents


Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Suitable for growing in containers


6-12 in. (15-30 cm)

12-18 in. (30-45 cm)

18-24 in. (45-60 cm)

24-36 in. (60-90 cm)


6-9 in. (15-22 cm)

9-12 in. (22-30 cm)

12-15 in. (30-38 cm)


USDA Zone 10b: to 1.7 C (35 F)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Light Shade

Partial to Full Shade


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

Bloom Color:

White/Near White

Bloom Time:

Mid Spring

Late Spring/Early Summer


Unknown - Tell us

Other details:

Unknown - Tell us

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

Propagation Methods:

From woody stem cuttings

Allow cut surface to callous over before planting

From seed; direct sow after last frost

Seed Collecting:

Allow unblemished fruit to ripen; clean and dry seeds

Unblemished fruit must be significantly overripe before harvesting seed; clean and dry seeds

Properly cleaned, seed can be successfully stored


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

Lakeland, Florida

Gardeners' Notes:


On Apr 21, 2006, Xenomorf from Phoenix, AZ (Zone 9b) wrote:

Another synonym of this plant is Disocactus speciosus var. amecamensis.

Disocactus speciosus f. amecamensis is the white flowered form.
Disocactus speciosus var. serrata has stems that are 4 or 3 angled, serrated angled and shorter. It also has stiff brown spines.
Disocactus speciosus var. superbus has shiny cinnabar red flowers, stems that have 7 angles and are thicker. The new growth tips are reddish.


On May 2, 2004, corky59 from Lakeland, FL wrote:

i found this plant growing in with a neighbors orange tree. i took a piece and moved it to the front of my yard w/plenty of sun. it grows very tall and must be staked. i have approx. 30 blooms w/ one blooming. the bloom fell off i beleive because it was so heavy. i fertilized w/ miracle grow once a month. then i fed w/ cow gravy a weak mixture. they must have support. very spindly. marilynne james, lakeland fla.