Goldfish Plant
Nematanthus gregarius
Through the year 🗓️
☀️ Summer now
Keep moisture and humidity steady through heat. Drought stress now costs you the next round of blooms.
🍂 Fall
Taper water and fertilizer as light fades, and move it to your brightest window.
❄️ Winter
Slightly cooler and drier encourages spring budding; protect it from drafts and skip the feed.
🌱 Spring
Prune stems back by a third after the heaviest flush to keep it dense, then resume regular feeding.
The details
Light & placement
- Light
- Bright indirect with some gentle morning sun; too dim and the "goldfish" never show up
- Ideal PPFD
- 200–400 µmol·m⁻²·s⁻¹
- Grow-light distance
- 12–18 in below LED
Water & feed
- Watering method
- Keep lightly, evenly moist in the growing season, watering when the top 1 in dries and draining fully. The waxy leaves store some water, so it forgives a miss better than a flood.
- Fertilizer
- Balanced or bloom feed at ½ strength, every 2–4 wks in spring–summer.
Home & habit
- Soil
- Light, airy mix: houseplant soil with extra perlite or fine bark; pH 6.0–6.5
- Humidity
- Above average (50%+); mist-free methods like pebble trays are safer for the waxy leaves
- Temperature
- 65–80 °F; leaf drop below ~60 °F
- Mature size
- Trails 2–3 ft
- Repotting
- Every 2–3 yrs; blooms best a bit root-bound
- Propagation
- Stem-tip cuttings in moist soil; roots readily with warmth.
When something looks wrong
- Overwatering signs
- Yellowing, dropping leaves; soft stems; rotting roots
- Underwatering signs
- Puckered, dull leaves; crispy edges; bud drop
- Common pests
- Aphids, mealybugs, spider mites
Common problems 🩺
The usual suspects when Goldfish Plant looks unhappy. Most houseplant trouble is watering or light, not disease — see all plant problems if you are not sure which plant is the culprit.
No orange flowers
Likely cause
Too little light, or a pot that is too large — it blooms best slightly root-bound.
What to do
Bright indirect light, leave it snug in its pot, and feed through the growing season.
Dropping leaves
Likely cause
Overwatering, cold water, or a cold draft.
What to do
Use room-temperature water, let the top inch dry, and keep it warm.
Mushy stems at the base
Likely cause
Soil kept too wet.
What to do
Let the top inch dry between waterings and use a light, airy mix.
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