Gymnocalycium, Moon Cactus, Ruby Ball 'Hibotan'

Gymnocalyciummihanovichii

Family
Cactaceae (kak-TAY-see-ee)
Genus
Gymnocalycium (jim-no-kal-LISS-ee-um)
Species
mihanovichii (me-han-oh-VIK-ee-eye)
Synonym
Gymnocalycium mihanovichii var. friedrichii
Gymnocalycium mihanovichii var. hibotan
Sun Exposure
Light Shade
Foliage
Height
6-12 in. (15-30 cm)
Spacing
3-6 in. (7-15 cm)
6-9 in. (15-22 cm)
Hardiness
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)
Danger
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Pink
Bloom Time
Mid Spring
Late Spring/Early Summer
Mid Summer
Other Details
Category
Cactus and Succulents
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Blue-Green
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
Patent Information
Propagation Methods
From woody stem cuttings
By grafting
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Gilbert, Arizona

Phoenix, Arizona

Fullerton, California

Oak View, California

Pittsburg, California

Roseville, California

Sarasota, Florida

Kenner, Louisiana

Alden, New York

Spring, Texas

Quilcene, Washington

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Gardener's Notes:

4
positives
3
neutrals
0
negative
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P
Sarasota, FL | May 2021 | positive

When the little colorful grafted ‘ball’ eventually died on this cactus, I planted the cereus cactus base in sandy soil in part shade ...Read More

A
Fort Collins, CO | August 2012 | neutral

My flower fell off about a year ago,but the plant it is still growing strong, it now has long looking arms with brown stems. What do I do...Read More

N
Pomona, CA | March 2012 | neutral

just got this cute plant, I got one hot pink, one pink, one yellow, 3 reds and 3 sort of maroon color-very other-worldly looking. Will be...Read More

R
Montrose, MI | December 2008 | positive

I got this plant about three years ago from kmart. it was in a verry tiney pot and i transplanted it but it has not gotten any bigger, do...Read More

S
Edmond, OK | May 2008 | positive

This cactus has a very eye catching, exotic look. reasonable price, easy care, easy too find as well. You could find them from most of th...Read More

C
(Zone 10b) | October 2005 | neutral

A novelty cactus that always be grown on graft,as it contains no food-making chlorophyll.Never let it become too cold.

C
C
Tennille, GA (Zone 8b) | March 2003 | positive

unusual cactus. The top of this cactus is not a fruit or flower but rather the gymnocalcymium. It does not contain chlorophyll and surviv...Read More

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