Moon Cactus Brown Spots and Pale Growth: Healing Scars and Light Adaptation

Brown Spots = Healed Damage

Bark-like spots = healed scratches/punctures. Causes: stem-to-stem piercing (3 stalks), insects, or accidental contact. Magnify to check for pests.

Pale Green New Growth = Normal

Only on new tips = healthy juvenile tissue. Patches on old growth = watering concern.

Stem Interference Solution

• If 3 separate plants: divide into 2 pots.
• If connected: cut interfering stalk at base (not main), callous, re-root.

Watering Audit

Boiled water, 400ml every 2–3 weeks in 6" pot = likely excessive. Dry completely between waterings.

Monitor the one mysterious spot; if it expands → cut out.