Skip to product information
1 of 6

Emm's Plant House

Gymnocalycium mihanovichii Siam Daydream 7.5cm H13cm

Gymnocalycium mihanovichii Siam Daydream 7.5cm H13cm

Regular price £26.00 GBP
Regular price Sale price £26.00 GBP
Sale Sold out
Taxes included.
Pot Size

Gymnocalycium mihanovichii ‘Siam Daydream’ is a colourful Moon Cactus cultivar with bright red, pink, or orange hues, often grafted onto a green rootstock. It brings cheerful colour to windowsills and succulent arrangements.

  • Full Botanical Name: Gymnocalycium mihanovichii ‘Siam Daydream’
  • Common Names: Moon Cactus, Siam Cactus
  • Country and/or Region of Origin: South America (Paraguay, Argentina)
  • Growing Conditions in Native Habitat: Native Gymnocalycium species grow in arid grasslands with intense sun and little rainfall

Care Guide

  • Care Guide:
  • Light: Bright, indirect light; avoid harsh midday sun
  • Ideal Room: Bright windowsill or sunlit conservatory
  • Feeding: Feed monthly with diluted cactus fertilizer during spring–summer
  • Humidity: Low humidity
  • Ideal Temperature: 18–30°C (65–86°F); keep above 10°C (50°F)
  • Watering: Allow soil to dry completely before watering again
  • Pet/Child Safe: Non-toxic — Gymnocalycium species are not listed as poisonous by the ASPCA. Physical injury from spines or minor stomach upset may occur if chewed. Always handle with care.
  • Soil Type: Gritty, free-draining cactus mix
  • Propagation: By offsets or grafting
  • Eventual Height and Spread: 10–15 cm tall; 8–12 cm wide
  • Growth Rate: Slow
  • Pests and Treatment: Mealybugs and spider mites; treat with insecticidal soap
  • Repotting: Every 2–3 years; minimal root disturbance
  • Pruning: None required
  • Air Purification: Minimal
  • Folklore: Often gifted as a “friendship cactus” representing resilience and colour in adversity
  • View full details