How to grow Gymnocalycium horstii

Gymnocalycium horstii grow and care – cactus of the genus Gymnocalycium also known as Chin cactus, Gymnocalycium horstii perennial evergreen plant used as ornamental plant, can grow in mediterranean, desert, subtropics, temperate, tropics climate or and growing in hardiness zone 10b-12 and with the right overwinter care in hardiness zone 10a.

Stem color green, stem shape round to oval with thorns.

Gymnocalycium horstii flower

Flower color pink the flower multi-petals

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How to grow Gymnocalycium horstii growing and care:

Well-drained soil, grow better in temperature above 10°C+, loose soil and well ventilated

How to care:
Let it dry between watering

What is the best way to start growing?
Plant / Seeds / Vegetative reproduction

Is it necessary to graft or use vegetative reproduction?
No, but when grow from seeds it’s harder than to grow from pups

Difficulties or problems when growing:

Planting season:
Spring to summer in hardiness zone 10a, spring to autumn in hardiness zone 10b-11, possible all the year in hardiness zone 12

How to plant:
Plant in well-drained soil when there is problem with a lot of rains need to grow the plant with raising bad

Pests and diseases:
Snails, slugs

Pruning season:
All year

How to prune:
No special requirements

Size of the plant:
1-15 cm (1-6 inches)

Growth speed in optimal condition:
Slow growing

Watering requirement – How often to water:
Small amount of water, let it dry between watering and do not over water if it’s grow in pot possible to put the water from down to soak the water and let it dry

Light conditions in optimal condition for growing:
Half Shade better morning sun / Full Shade with a lot of light

Is it possible to grow indoor as houseplant?

How to care indoor:
Locate the plant in a place without high humidity, if it’s cold in the winter choose a place with heater next to the plant (do not burn the plant), when growing indoor the plant require less water, unless the plant next to heater or air condition

Growing is also possible in a pots, planter, flowerpot, containers:
Yes, pot or clay pot that will be 20-50% bigger (not need deep because the root shallow) for good drainage that important use in the bottom of the container with little rocks like: gravel, lava rocks or pebbles, soil should be cactus potting mix, make holes in the container for good drainage and need to take care that the soil will be well ventilated

Switch the soil after few years:
Removing the cacti from their pots, take paper and put slowly the plant on the paper, possible to “help” the cactus with the hands better to cover with papers or plastic wrap, after that prepare again the “little rocks” in the bottom, put part of the cactus potting mix, take the plant with and locate it in the new place, if it’s small take the soil mix with spoon and organize it (not to get the spines in hands) if it’s bigger use small garden shovel and squeeze the soil that the cactus will be stable and won’t fall, sometimes when it’s not stable better to add some stick that will hold the cactus.

Blooming information

Bloom season:
Spring / Summer

General information about the flower
Pink multi-petals flowers

How to grow Gymnocalycium horstii from seeds

Sowing requirement:
Sow in in half sun or full shade, better sandy soil or well ventilated soil like cactus potting mix and good drainage is important

Saving seeds and care until sowing:
Dry and dark place in room temperature

Sowing season:
Spring but possible in autumn and winter in hot climate, in summer put it in half shade, in hardiness zone 10 spring to summer, hardiness zone 11 spring to autumn, hardiness zone 12 all year

How to plant:
Well drained soil and potting mix or sandy soil

Planting spacing:
10*20cm, (4-8 inches) or for transplanting 2*2cm (1*1 inch)

Depth of Sowing:
0.5cm, (0.25inches)

Conditions for seeds germinate:
Moist soil but do not over water and don’t let it dry

Watering requires for Seeds:
Small amount of water, lightly moist soil and don’t let it dry

Germination time:
2-6 weeks

Condition of seedling:
Half sun or full shade and don’t overwater

Scientific name:

Gymnocalycium horstii

Alternative names: Gymno horstii

How to grow Gymnocalycium horstii

Gymnocalycium horstii flower

Gymnocalycium horstii plant

Gymnocalycium horstii


Blooming Seasons
  • Spring flowers
  • Summer flowers
Flower colors
  • Pink flower
  • Desert Climate
  • Mediterranean Climate
  • Subtropics Climate
  • Temperate Climate
Ornamental parts
  • Ornamental flower
  • Ornamental plant
Plant growing speed
  • Slow growing plants
Plant life-form
  • Cactus
  • Perennial plant
Plant Uses
  • Drought tolerant plants
  • Indoor plants
  • Ornamental plants
Planting Season
  • Autumn Planting
  • Spring Planting
  • Summer planting
Plants sun exposure
  • Part shade Plants
  • Shade Plants
Watering plants
  • Small amounts of water
Hardiness zone
  • Hardiness zone 10
  • Hardiness zone 11