Bunny ears cactus leaves falling off: causes and what to do

What Bunny ears cactus’s sources say that bears on this

Cold tolerance

H2 — 1–5°C

RHS · read 13 September 2026

Light

Full sun

RHS · read 13 September 2026

Soil moisture

Well-drained

RHS · read 13 September 2026

Watering

Let the soil dry out fully before watering again. In winter it needs partial sun, very little water, and a cooler range of 50-65 degrees Fahrenheit.

NC State Extension · read 13 September 2026

Give full light all year. During growth (spring, summer, early autumn), let the compost dry before watering and feed three or four times with a balanced liquid fertiliser. In winter, while dormant, stop both water and fertiliser.

RHS · read 13 September 2026

How this shows up on a Bunny ears cactus

Possible causes, likeliest first for a Bunny ears cactus

1. Most likely too much water

   Ranked higher for Bunny ears cactus because of what its sources say.

   Bunny ears cactus stores water in its own tissue, which makes it more sensitive to wet soil than most leafy plants, so this reading is stronger for it.

   • Well-drained RHS · read 13 September 2026
   • Loam, Sand; pH Acid or Alkaline or Neutral RHS · read 13 September 2026

   Why: Soil that is wet two inches down, under leaves that are yellowing from the bottom or falling, points at roots that cannot breathe.

   What to try:

   • Hold off watering until the top two inches of soil are dry, and check again with a finger rather than by the calendar.Useful: moisture meter
   • Empty any water standing in the saucer or the outer pot within half an hour of watering.Useful: pot with drainage holes

   What would settle it: Lift the bunny ears cactus out of its pot. Healthy roots are firm and pale; roots that have been wet too long are brown, soft and smell sour.

   Check this with the questions

2. Most likely a reaction to the change

   Why: Many plants drop healthy leaves when their light, temperature or draughts change suddenly.

   What to try:

   • Leave it where it is now rather than moving it again, unless the new spot is plainly too dark or too cold.Useful: min-max thermometer
   • Keep it away from radiators, air vents and doors that open to the outside.Useful: min-max thermometer

   What would settle it: Whether the dropping slows within a few weeks of the bunny ears cactus staying put. A bunny ears cactus adjusting settles; one with a separate problem keeps losing leaves.

   Check this with the questions

3. Probably too much water, but this is not settled

   Ranked higher for Bunny ears cactus because of what its sources say.

   Bunny ears cactus stores water in its own tissue, which makes it more sensitive to wet soil than most leafy plants, so this reading is stronger for it.

   • Well-drained RHS · read 13 September 2026
   • Loam, Sand; pH Acid or Alkaline or Neutral RHS · read 13 September 2026

   Why: Wet soil and yellowing lower leaves usually mean the roots have been wet too long.

   What to try:

   • Let the soil dry to two inches down before the next watering.Useful: moisture meter
   • Tip the bunny ears cactus out and look at the roots before deciding whether to repot.Useful: well-draining potting mix

   What would settle it: Two observations separate them. How long the soil stays wet after a full watering: more than about a week in a room at normal temperature suggests the pot rather than the schedule. And the roots themselves: firm and pale, or brown and soft.

   Check this with the questions

Less likely for a Bunny ears cactus, still possible

• Most likely too little water
• This may be ordinary autumn leaf fall
• This may be ordinary leaf loss
• Possibly damaged roots, or hot dry air
• The answers do not settle this
• Possibly root rot, in a pot that has stopped draining

Questions

What usually causes leaf drop on a Bunny ears cactus?

For Bunny ears cactus: most likely too much water, most likely a reaction to the change and probably too much water, but this is not settled. Bunny ears cactus stores water in its own tissue, which makes it more sensitive to wet soil than most leafy plants, so this reading is stronger for it.

How can I tell which one it is on my Bunny ears cactus?

Which leaves are falling, and what do they look like? Green leaves, several at once; Yellow leaves, the oldest first; Dry, brown leaves; A tree or shrub that loses its leaves each autumn, and it is autumn.

What do Bunny ears cactus's sources say about its cold tolerance?

RHS: H2 — 1–5°C.

What does this look like on a Bunny ears cactus?

Affected tissue goes pale and then papery, and the boundary follows where the light falls rather than the shape of the leaf. Telling it apart: Whether the undersides are affected. Light damages what it reaches and nothing else.

Is Bunny ears cactus safe to handle while I check it?

Its sources list it as toxic to people. Wash your hands after handling the roots or sap, and keep trimmings away from pets.

Other plants that show leaf drop

• Aloe veraWashed-out patches that do not spread to the shaded side
• Baby's tearsWhitened areas where the sun falls longest
• Burro's tailSwollen, darkening leaves that come away at a touch
• Crown of thornsSwollen, darkening leaves that come away at a touch
• Jade plantSwollen, darkening leaves that come away at a touch
• Mexican snowballSwollen, darkening leaves that come away at a touch

Something else wrong with the Bunny ears cactus?

• Yellow leaves
• Drooping or wilting
• Brown tips and edges
• Spots on leaves
• Soft or mushy stem
• Insects and residue
• Leggy, leaning growth
• No flowers, dropped buds
• Growth on the soil

Everything the sources say about Bunny ears cactus

What this does not cover

This page orders a decision tree's results using a plant's sourced care. It has not seen your plant, its pot or its window, and two problems at once are common: that is the usual reason a confident answer turns out wrong. The questions in the diagnosis tool narrow it further than a list can.