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Plants / Gesneriaceae / Goldfish plant / Leaf drop

Goldfish plant: leaf drop

Why is it dropping leaves?

On goldfish plant, the likeliest cause is cold draught. Drop concentrated on the side nearest a door, window or air vent, starting when the weather turned.

Causes, likeliest first for this species 3 checked
  1. 1
    Cold draught

    Ranked here because below 60°F it starts shedding.

    How to tell. Drop concentrated on the side nearest a door, window or air vent, starting when the weather turned.

    What to do. Move it. It wants 60–80°F and no cold air moving over it.

  2. 2
    Recently moved or repotted

    Ranked here because a change in light level is the commonest trigger for sudden leaf drop.

    How to tell. Leaves dropping within a fortnight of a change of position, a repot, or arriving home from the shop, with no other symptom.

    What to do. Leave it alone. Pick a spot and keep it there; it will re-leaf once it has adjusted to the new light level.

  3. 3
    Swinging between bone dry and soaked

    How to tell. Drop following a period of neglect and then heavy watering to compensate.

    What to do. Return to a steady 6–11 day rhythm and check the soil rather than the calendar.

Why that order, for this plant

The ranking above is not a generic list. It is computed from this species' own record — a watering interval of 6–11 days, a canopy epiphyte origin, a humidity floor of 50%, and a light range from medium to bright-indirect. Change those figures and the order changes with them.

That is the whole point of a per-species page. Leaf drop on a plant watered every three days and leaf drop on one watered every three weeks almost never have the same cause, and a list that ranks them identically is worth nothing to either owner. You can check the reasoning against the care fields on the species entry, which is where these numbers come from.

No percentages appear on this page. We have not run a grower survey, and a confident-sounding figure with no dataset behind it is worse than none. Order and distinguishing tests are what we can honestly give.

Other problems recorded for this species

Also for this species

Full care entry with light, watering and soil. How to propagate it. Toxicity to cats and to dogs.

Sources

  1. Royal Botanic Gardens Kew, Plants of the World Online — Nematanthus gregarius Accepted name and family. Checked 2026-09-12.
  2. ASPCA Animal Poison Control — Nematanthus gregarius Relevant if a damaged plant is being chewed rather than merely ailing.
  3. This database's own care record for Nematanthus gregarius — the watering, humidity and light figures the ranking is derived from.

Compiled and edited by Tony Valcarcel · 2026-09-12
Cause ordering is derived from this species' recorded care requirements, and the derivation is stated above so you can disagree with it. It is not a diagnosis, and a plant can have two problems at once. How this is sourced.