Goldfish Plant
Nematanthus wettsteinii
Updated Mar 28, 2026
Goldfish Plant (Nematanthus wettsteinii) is a trailing tropical houseplant with glossy paired leaves and orange fish-like flowers, thriving in bright indirect light, warm humid air, and evenly moist airy soil.
About Goldfish Plant
Goldfish Plant is a trailing tropical houseplant known for its glossy paired leaves and its bright tubular flowers that resemble tiny goldfish. When the stems arch and spill from a hanging pot or shelf, the plant takes on a playful, flowing look that feels both lush and lively.
The flowers are what make it so distinctive. Each bloom puffs out in orange tones and curves slightly along the stem, so the plant can look as if small fish are swimming through the foliage. When it is full and flowering well, Goldfish Plant has a strong ornamental presence without needing large leaves or a heavy form.
Its natural trailing habit also makes it easy to style indoors. It works especially well in hanging baskets, high shelves, and plant stands, where the stems can cascade and the flowers can be seen clearly from below.
How to Care for Goldfish Plant
Watering
Keep the mix lightly and consistently moist, but never bone-dry and never waterlogged. Water when the top half inch (1–2 cm) of soil feel just dry, then water thoroughly until excess drains away.
Empty any collected water so the roots are not left standing in it. Repeated deep dryness can lead to leaf drop and weaker growth, while constantly soggy soil encourages root trouble.
In cooler, lower-light periods, reduce watering slightly, but do not let the root ball dry out hard.
Sunlight
Provide bright, indirect light or gentle morning sun. An east-facing window, a bright north window, or a position slightly back from a stronger south- or west-facing window works well.
Too little light can make the stems stretch and reduce flowering. Strong unfiltered midday sun can scorch the leaves and fade the blooms, so the best setting is a bright room with softened light rather than direct sun for hours.
Temperature
Goldfish Plant prefers warm, stable indoor temperatures, roughly 64–77°F (18–25°C).
It does not respond well to chills, cold drafts, or sudden dry heat from vents and heaters. Short warmer periods are usually manageable when humidity and watering are good, but prolonged heat combined with dry air can stress the plant and cause buds to drop.
Humidity
This is a humidity-loving plant. Moderate to high humidity helps keep Goldfish Plant looking fuller and supports better flowering, especially in heated homes where the air dries out.
Grouping plants, using a pebble tray, or placing a small humidifier nearby can help improve the air around it. Light misting is possible, but the more useful goal is raising overall humidity rather than wetting the foliage directly.
Soil
Use a rich, organic, well-draining mix. Goldfish Plant grows best in a medium that holds gentle moisture and nutrients while still allowing water to pass through quickly.
A loose airy structure is important because the roots are fine and shallow. A pot with drainage holes is essential, and a slightly snug pot is usually a better choice than a large container filled with wet mix.
Pruning & Shape
Pinch back growing tips regularly to encourage branching and a fuller plant. This helps Goldfish Plant stay bushier rather than becoming thin and sparse over time.
After flowering, longer bare stems can be trimmed back to keep the overall shape compact and to encourage fresh shoots lower on the plant. Healthy tip cuttings also root readily, so pruning can double as an easy way to propagate it.

