Goldfish Plant: Grow & Care for Nematanthus Gregarious

Written by Iris

Jul 20 2021

Goldfish Plant: Grow & Care for Nematanthus Gregarious
Goldfish plant (Nematanthus Gregarious) is a herb of the genus Snapdragon in the Gesneriaceae family. It likes high temperature and high humidity. Under high temperature in summer, Goldfish plant (Nematanthus Gregarious) grows very slowly or almost stops growing. At this time, appropriate shading measures should be taken to make it grow vigorously and not shed its leaves. Goldfish plant (Nematanthus Gregarious) is suitable for potted plants in greenhouses and indoor gardens, and can also be used as hanging plants in family rooms. Next, this article will give you a detailed presentation to the growing tips and precautions for care of goldfish flowers.

How to Grow Goldfish plant (Nematanthus Gregarious)

The easiest ways to propagate Goldfish plant (Nematanthus Gregarious) are either through stem cuttings or plant division. In general, the best time to propagate your plants is in spring and summer. Propagating during its growth period gives the cuttings a better chance to root and establish new plants. Growing the Goldfish plant from seeds can be very tricky. The main reason for this is that flowers growing outside their natural habitat are difficult to pollinate. If there's no pollination, the seed will not develop. As a result, finding Goldfish plant seeds for sale is often almost impossible. If you want to grow more of this plant in your home, we recommend propagating it through either stem cuttings or division. Both methods work well for the Goldfish plant, and they're more reliable than growing it from seed.

Steps for Goldfish Plant (Nematanthus Gregarious)Propagation with Division

The best time to use this method is when you’re also repotting your Goldfish plant.
  • Gently remove the plant from the soil, taking care not to damage the roots.
  • Wipe as much soil from the roots as you can.
  • Using your hands, gently pull the stems and roots apart to divide the main plant. Depending on how big your Goldfish plant is, you can divide it into 2 or 3 bunches.
  •  Pot each divided plant in a 6 inch (15 cm) container filled with loose, well-draining soil.

Steps for Goldfish Plant (Nematanthus Gregarious) Propagation with Stem Cuttings

  • Use a sharp, clean knife to cut a stem section about 4 inches (10 cm long). Pick stems that don’t have any flowers or buds on them, and cut below the leaf node.
  • Take 3 or 4 cuttings and plan to plant them together in the same pot so that the new plant will have a bushy style.
  • Remove any bottom leaves from the stem so that the bottom inch is left bare.
  • Place the cuttings in a container with water, and avoid submerging the leaves. You can also use a rooting hormone if you want to encourage them to root faster.
  • Keep the cuttings in a warm, bright spot but away from direct sunlight.
  • Change the water weekly.
  • The cuttings should develop roots in about two weeks. Wait until the roots are at least 2 inches (5 cm) long before transplanting them to the soil.
Plants propagated through stem cuttings will only flower once they're fully established in spring or summer the following year. More about Goldfish plant propagation.

How to Care for Goldfish Plant (Nematanthus Gregarious)

Light Care

The goldfish plant (Nematanthus Gregarious) needs around 13 hours of direct light every day to bloom prolifically. Therefore, it is usually best grown under grow lights. Be cautious though, placing your goldfish plant in direct sunlight can cause the leaves to dry out and die. Depending on your conditions, an eastern window may do except during the winter months. For beautiful blossoms this plant needs enough light to thrive.

Soil Care

A light, fast-draining potting soil is perfect. You can use fortified soils. In the wild, goldfish plants are epiphytes, a type of plant that grows upon other plants. It will usually grow on a tree.

Water Care

Water your Goldfish plant (Nematanthus Gregarious) weekly throughout spring and summer, then cut back on your watering schedule in winter. The soil should be kept moist but not soaked to prevent fungal problems such as root rot. Ideally, you should only water the plant when the soil’s top inch feels dry to the touch. You can either use your finger to test this or use a moisture meter for more accurate results.
If possible, try to use tepid water for your Goldfish plant. Cold water can shock this plant, which can cause drooping leaves. Fill a watering can and allow the water to sit overnight until it reaches room temperature. Also, chemicals such as chlorine and fluoride will evaporate from the water.
When watering your Goldfish plant, try not to splash too much water on the leaves. If you already have African violets in your home, you probably know that wet leaves will develop brown spots and mold.

Temperature and Humidity Care

The goldfish plant (Nematanthus Gregarious) thrives between 65 and 75 degrees. If the plant gets too cold, it will drop its leaves before eventually dying. This plant loves humidity. You will have the most success growing it near a humidifier or a humidity tray. You need to take the time to mist its leaves daily with room-temperature water. Many growers find that a goldfish plant not getting enough humidity is the reason that it does not thrive.

Fertilizer Care

Fertilize a Goldfish Plant(Nematanthus Gregarious)  every two weeks in the spring and summer when it is actively growing with a basic plant food at 1/2 the recommended strength. Feed a Goldfish Plant monthly in the fall and winter.

Pruning Care

Trim aggressively to keep a goldfish plant full and in bloom. These plants look better and bloom more if you keep the stems between 12-18 inches (30-45 cm).

Pests and Diseases Care

Goldfish Plants attract the plant pests Aphids and Mealy Bugs. It’s difficult to eliminate these plant pests once they have infected a Goldfish Plant because of the numerous small leaves where they love to hide. Spray a Goldfish Plant thoroughly with the green solution to get rid of plant pests but try to avoid the flowers.

Goldfish Plant (Nematanthus Gregarious) FAQ

Why Does my Goldfish Plant Have No Flowers?

A lack of flowers isn't necessarily a sign of an unhealthy plant, but who wouldn't want to see those unique blooms? If your plant isn't flowering, consider completing one for more of the following.
  •  Improve your plant's environment – If your house is too cold, dry, or dark, your plant is unlikely to flower. Move your plant to a better location or adjust your home’s environment.
  • Increase phosphorus – Phosphorus is essential for the production of flowers. Even if you're applying fertilizer, you may not be adding enough phosphorus. Switch from an all-purpose houseplant fertilizer to a product for flowering plants.
  • Limit water –Withholding water for 4-6 weeks in the winter can encourage flowering.

How long do goldfish plants live?

With proper care, goldfish plants can easily live for over ten years.