Moon Cactus Yellow


Cacti are perfect plant for a novice gardener. 

The ruby ball cactus, also known as the red cap cactus, is a grafted specimen. The colorful yellow top is a gymnocalycium, which refers to the flower buds bearing no hair or spines. While the lower green cactus could be any number of varieties (usually a Hylocereus cactus). The main job of the lower cactus is to display the gymnocalycium at an advantageous height


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Plant Details

  • Plant Size: Approximately 2 inches in overall height, from bottom of pot to top leaf and 4 inches spread
  • Other name(s): Gymnocalycium mihanovichii (botanical name), Moon cactus, Ruby ball cactus, 
  • Plant Type: Succulent, Perennial, Flower (Yellow colour)
  • Plant Placement: Indoors or Outdoors 
  • Bloom Season: Spring and summer
  • Maximum Reachable Height: Up to 8 inches
  • Difficulty: Easy to grow and low maintenance 


What’s Included

  • Plant: Moon Cactus (Yellow Top) (1)
  • Pot: 3 inch Grower Round Plastic Pot (white) (1)


Please Note

  • All images displayed are of real products
  • Actual plant may vary from the picture with respect to size and appearance
  • As they are natural being and each plant differ from each other 
  • These are natural plants and required to be handled with love and care
  • Pot design and color are subject to availability 
  • The actual delivery time may differ depending on the availability of the product


Care Tips


  • Demands full light growing for most of the year, except during the winter cycle
  • For the plant’s health, light should be reduced to partial sun during winter 



  • Water on a regular basis during its first season in a new pot
  • keep the soil moist, but not soggy
  • During the winter cycle, the cactus should not be watered at all, with watering to resume in the early spring



  • Like most cacti, this specimen demands sandy soil-bases that drain easily
  • It is usually happy with the pre-packaged cactus soil found in common hardware stores
  • To increase drainage for a picky plant, mix in a 1:1 ratio of perlite or bark



  • Monthly feeding of low nitrogen fertilizer
  • Fertilization should stop one month before the planned winter cycle for the plant’s health
  • Any organic cactus fertilizer can be used 



  • This cactus enjoys temperatures ranging from 21-37°C, but demands cooler temperatures during the winter months
  • Starting in the late fall, this cactus should be kept between 10-18°C, and away from central heating vents
  • The cooler spell is demanded over the course of the entire winter, during which time the segments of cactus will turn a light gray color
  • Failure to provide these controlled winter conditions will result in plant death the following spring



  • Re-potting should take place in the summer, after the year’s bloom has finished
  • Remember to water the plant regularly to promote the growth of a healthy root system during its first year in the new pot



  • Prefers low humidity conditions
  • Consider running a dehumidifier in the room where the cactus lives to provide it with the most ideal conditions possible



  • Any fully grown pad from this cactus may be broken off cleanly in the early summer and re-potted for propagation purposes
  • Cuttings work best when grouped in threes or more, and should be buried an inch deep in the soil
  • Remember to water regularly to promote the growth of a healthy root system in the first year after propagation



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