
Goldfish Plant
Nematanthus gregarius
Clog Plant, Guppy Plant, Goldfish Vine
The Goldfish Plant (Nematanthus gregarius) is a cheerful and captivating houseplant, famous for its vibrant, fish-shaped flowers that seem to ‘swim’ among its glossy, dark green leaves. This trailing plant is a fantastic choice for hanging baskets, bringing a splash of color and a touch of the tropics to any indoor space.
📝 Goldfish Plant Care Notes
🌿 Care Instructions
⚠️ Common Pests
📊 Growth Information
🪴 In This Guide 🪴
☀️ Goldfish Plant Light Requirements
Best Placement and Light Intensity for Goldfish Plant
Finding the perfect lighting balance is the secret to a happy, blooming Goldfish Plant.
Optimal Placement: Your Goldfish Plant craves bright, but indirect, sunlight. An east-facing window is the gold standard, providing gentle morning sun that isn’t harsh. A spot a few feet from a west or south-facing window, where the light is filtered by a sheer curtain, also works beautifully.
Avoid Direct Sunlight and Leaf Scorch
Avoid Direct Sun: Intense, direct sunlight can scorch the glossy leaves, leaving brown burn marks. If you notice the leaves looking washed out or crispy, it’s a sign of too much direct sun.Low Light Effects on Growth and Blooming
Low Light is Not Ideal: While it might survive in lower light, your Goldfish Plant will not thrive or produce its signature flowers. Insufficient light leads to “leggy” growth-long, sparse stems with few leaves-as the plant stretches to find more light.Grow Lights for Goldfish Plant Indoors
Grow Lights are a Great Option: If your home lacks natural light, don’t worry! Goldfish Plants respond very well to artificial grow lights, especially during the darker winter months.
💧 Watering Your Goldfish Plant
When to Water a Goldfish Plant
Correct watering is vital for the health of your Goldfish Plant. It prefers consistently moist soil but is very susceptible to root rot if overwatered.
When to Water – The golden rule is to water when the top inch of the soil feels dry to the touch. During the spring and summer growing season, this may be about once a week. In the fall and winter, when the plant’s growth slows, you’ll need to water less frequently.
Proper Watering Technique and Water Quality
Watering Technique – Water the soil thoroughly until you see it run out of the pot’s drainage holes. This ensures the entire root ball gets hydrated. After a few minutes, be sure to empty any excess water from the saucer. This is crucial to prevent the roots from sitting in water. Try to water the soil directly and avoid wetting the foliage to help prevent fungal issues.
Water Quality - Goldfish plants can be sensitive to chemicals in tap water. If possible, use filtered, distilled, or rainwater. If you must use tap water, let it sit out overnight to allow some of the chlorine to dissipate.
Seasonal Watering Adjustments
Seasonal Adjustments – Always adjust your watering routine based on the season and your home’s environment. More light and warmer temperatures mean more frequent watering; less light and cooler temps mean the opposite.
🪴 Best Soil Mix for Goldfish Plant
Recommended Goldfish Plant Soil Composition
As an epiphyte in its natural habitat, the Goldfish Plant is used to growing on other trees, not in dense soil. Therefore, the right potting mix must be airy and exceptionally well-draining to mimic its natural environment.
Soil Composition – Your Goldfish Plant needs a light, porous potting medium. A high-quality African violet mix is an excellent, readily available option.
DIY Goldfish Plant Potting Mix
DIY Mix – To create your own superior blend, combine one part peat moss (or coco coir), one part perlite, and one part vermiculite. This mixture provides the perfect balance of moisture retention and aeration that Goldfish Plant roots love.Drainage Requirements to Prevent Root Rot
Drainage is Non-Negotiable – No matter what soil you use, ensure your pot has ample drainage holes. This allows excess water to escape, which is the best defense against root rot.🍼 Fertilizing Your Goldfish Plant
Best Fertilizer Type and Dilution for Goldfish Plant
Regular feeding during the growing season is key to encouraging a spectacular display of flowers on your Goldfish Plant.
Fertilizer Type: A balanced, water-soluble fertilizer is perfect. Look for one where the N-P-K numbers are equal (e.g., 10-10-10 or 20-20-20). A fertilizer high in phosphorus can also help promote blooming.
Feeding Frequency by Season
Frequency: Fertilize your Goldfish Plant every two weeks during the spring and summer. Once autumn arrives, reduce feeding to once a month, and stop completely during the winter to allow the plant to rest.Application Tips and Overfeeding Signs
How to Apply: Always dilute your fertilizer to half the strength recommended on the package to avoid burning the roots. Apply the fertilizer to already moist soil to ensure it’s absorbed properly and to prevent root damage.🌡️ Goldfish Plant Temperature Needs
Ideal Temperature Range Indoors
Hailing from the tropics of Brazil, the Goldfish Plant enjoys warm and stable temperatures.
Ideal Temperature Range: This plant is happiest in typical household temperatures between 65-75°F (18-24°C). It can tolerate slightly warmer conditions but is not cold-hardy.
Protecting from Drafts and Temperature Swings
Avoid Cold Drafts: Protect your Goldfish Plant from sudden temperature drops and cold drafts. Keep it away from drafty windows, doors, and the direct flow of air conditioning or heating vents. Exposure to cold can cause the plant to drop its leaves and buds.💦 Goldfish Plant Humidity Requirements
Ideal Humidity Levels for Nematanthus
High humidity is one of the most important factors for a thriving Goldfish Plant, closely replicating its native rainforest environment.
Ideal Humidity Level: Aim for a humidity level of 50% or higher. While it can survive in average household humidity, you’ll see more robust growth and flowering with higher moisture in the air. Dry air can lead to brown, crispy leaf edges and bud drop.
Ways to Increase Humidity Indoors
How to Increase Humidity:
- Misting: Lightly mist the leaves with room-temperature water a few times a week.
- Pebble Tray: Place the pot on a tray filled with pebbles and water. The water will evaporate, increasing the humidity around the plant. Make sure the pot sits on the pebbles and not in the water.
- Humidifier: Using a small room humidifier is the most effective way to maintain consistent high humidity.
- Grouping Plants: Place your Goldfish Plant among other plants that love humidity to create a naturally more humid micro-environment.
- Location: A bright bathroom or kitchen can be a great location for your Goldfish Plant, as these rooms tend to have higher humidity levels.

🌸 Encouraging Goldfish Plant Blooms
Light and Fertilizer for Blooming
The “goldfish” flowers are the main event! With the right care, your plant can bloom prolifically during spring and summer.
Key Factors for Blooming:
- Light: The most crucial factor is adequate bright, indirect light. A plant that doesn’t get enough light will not produce flowers.
- Fertilizer: Regular feeding during the growing season provides the energy needed for blooming.
Winter Rest Period to Trigger Flowers
- Winter Rest: A cooler, drier period in the winter is essential. Reduce watering and stop fertilizing to allow the plant to rest, which helps trigger flower production in the spring.
Pruning to Encourage New Blooms
- Pruning: Pruning the plant after a flowering cycle encourages new growth, and flowers form on this new growth.
The flowers are typically bright orange, but can also be red or yellow, and their unique shape is a delight to behold.

🏷️ Goldfish Plant Types and Varieties (Nematanthus and Columnea)
Goldfish plants are found in two closely related genera: Nematanthus and Columnea. Both are tropical, epiphytic houseplants prized for their pouch-like, fish-shaped flowers.
Nematanthus (Pouch Flower) Goldfish Plant Varieties
- Nematanthus gregarius - Glossy, medium-green foliage; bushy, trailing growth; widely available and reliable bloomer.
- ‘Black Gold’ - Shiny, dark green leaves with reddish undersides; bright orange flowers for striking contrast.
- ‘Tropicana’ - Bright orange and red striped flowers; dense, glossy foliage.
- ‘Christmas Holly’ - Pumpkin-orange blooms with plump, green leaves.
- ‘Green Magic’ - Intense green foliage with prolific bright orange flowers.
- Nematanthus wettsteinii - Vigorous grower with dark green, waxy leaves.

Columnea Goldfish Plant Varieties
- Columnea gloriosa - Classic goldfish plant; brilliant orange, tube-shaped flowers; cascading vines with glossy leaves.
- Columnea hirta - Hairy, dark green foliage; orange-red blooms.
- ‘Firebird’ - Popular hybrid with profuse clusters of fiery orange to red flowers; dense, trailing habit.
- ‘California Gold’ - Yellow blooms edged in red; showy, high-contrast flowers.
- ‘Aladdin’s Lamp’ - Hybrid with dark, nearly blackish foliage and striking red flowers.
- Columnea microphylla - More delicate look with fine-textured, small leaves.
🪴 Potting and Repotting a Goldfish Plant
Repotting Frequency and Timing
Goldfish Plants enjoy being slightly root-bound, which can encourage more blooms. This means you won’t need to repot them too often.
Repotting Frequency: Repot your Goldfish Plant every 1-2 years, or when it becomes clearly root-bound (e.g., roots growing out of the drainage holes, water running straight through the pot). The best time to repot is in the spring.
Best Pot Size and Pot Type
Pot Selection: Choose a new pot that is only 1-2 inches larger in diameter than the current one. A pot that is too large will hold excess soil and moisture, increasing the risk of root rot. Always use a pot with drainage holes.Step-by-Step Goldfish Plant Repotting
How to Repot:
- Gently remove the plant from its old pot.
- Inspect the roots. If they are tightly coiled, gently loosen them.
- Place a layer of fresh, well-draining potting mix in the new pot.
- Set the plant in the new pot and fill in around the sides with more potting mix.
- Water lightly and return it to its bright, indirect light location.
✂️ How to Prune a Goldfish Plant
When to Prune Goldfish Plant
Pruning is essential for keeping your Goldfish Plant looking its best and for promoting a profusion of flowers.
- When to Prune: The best time to prune is after the main flowering season is over. This gives the plant time to produce new growth on which the next season’s flowers will form.
How to Prune and Shape
- How to Prune: Using clean, sharp scissors, trim back the stems by about a third. You can also pinch back the tips of the stems during the growing season to encourage branching.
- Encourage Fullness: Pruning encourages the plant to branch out, creating a fuller, more compact shape instead of long, sparse vines.
Propagate Cuttings After Pruning
- Propagate the Cuttings: Don’t waste those trimmings! They are perfect for propagating new Goldfish Plants.
🌱 How to Propagate a Goldfish Plant
Propagation in Soil (Cuttings)
Propagating a Goldfish Plant is a simple and rewarding process, easily done with stem cuttings. The best time to propagate is during the spring or summer.
Propagation in Soil
- Take Cuttings: Using sterile scissors, cut a healthy, non-flowering stem tip that is 4-6 inches long. Make the cut just below a leaf node.
- Prepare the Cutting: Remove the leaves from the bottom half of the cutting, leaving two or three pairs of leaves at the top.
- Plant the Cutting: Dip the cut end in rooting hormone (optional, but helpful) and plant it in a small pot filled with a moist, well-draining potting mix.
- Create Humidity: Cover the pot with a clear plastic bag or a humidity dome to create a humid environment that encourages rooting.
- Care: Place the pot in bright, indirect light and keep the soil lightly moist. Roots should form in a few weeks. You’ll know it’s rooted when you see new leaf growth.
Propagation in Water (Cuttings)
Propagation in Water
- Prepare Cuttings: Take and prepare cuttings as described above.
- Place in Water: Submerge the bottom half of the cutting in a jar of room-temperature water. Ensure no leaves are below the waterline.
- Wait for Roots: Place the jar in bright, indirect light and change the water every few days. Roots will begin to appear in a couple of weeks.
- Plant: Once the roots are about an inch long, you can plant the cutting in soil.

Aftercare for Rooted Cuttings
Place newly potted cuttings in bright, indirect light. Keep the soil lightly moist and humidity high for the first few weeks to support establishment.🐛 Common Goldfish Plant Pests
Identifying and Treating Pests
While generally robust, Goldfish Plants can sometimes be affected by common houseplant pests. Inspect your plant regularly to catch any infestations early.
- Aphids: These small, sap-sucking insects often cluster on new growth, causing distortion.
- Mealybugs: Look for white, cottony masses in leaf axils and on stems. They drain the plant of its sap.
- Spider Mites: These tiny pests are hard to see but create fine webbing on the plant. They thrive in dry conditions, so high humidity is a good deterrent.
- Whiteflies: Small, white, winged insects that fly up when the plant is disturbed.
Pest Treatment
If you spot any pests, isolate your plant immediately. Most can be treated by wiping them off with a cotton swab dipped in rubbing alcohol or by spraying the plant thoroughly with insecticidal soap or neem oil.🩺 Common Goldfish Plant Problems
Most Goldfish Plant problems are related to improper care. Here’s how to diagnose and fix them:
- Failure to Bloom: The most common cause is not enough light. Move your plant to a brighter location. It could also be due to a lack of a winter rest period or insufficient fertilizer.
- Yellowing Leaves: This is a classic sign of overwatering. Allow the soil to dry out more between waterings and ensure the pot has good drainage.
- Brown, Crispy Edges: The air is likely too dry. This is a cry for more humidity. Increase misting or use a humidifier.
- Leaf Drop: Often a reaction to stress from cold drafts, sudden temperature changes, or watering issues (both over and underwatering). Maintain a stable environment.
- Leggy Growth: Long, sparse stems mean the plant is desperately seeking more light. Move it to a brighter spot and prune it back to encourage bushier growth.
- Root Rot: The most serious issue, caused by overwatering. If the plant is wilting and the soil is wet, you may need to check the roots. Repot in fresh soil after trimming away any black, mushy roots.
- Brown-Black Spots: This can indicate a fungal leaf spot disease, often from water sitting on the leaves. Improve air circulation and avoid wetting the foliage when you water.
🖼️ Displaying Your Goldfish Plant

Creative Display Options for Goldfish Plants
The trailing habit and vibrant flowers of the Goldfish Plant make it a versatile and stunning decorative piece.Hanging Baskets for a Dramatic Display
- Hanging Baskets: This is the perfect way to show off its cascading vines and allow the “goldfish” to swim freely.
Utilizing High Shelves and Windowsills
- High Shelves: Let the vines trail down from a bookshelf or mantelpiece for a touch of living decor.
- Windowsills: A bright, east-facing windowsill is a perfect home where it can get the light it needs to bloom.
🌟 PRO Tips for a Thriving Goldfish Plant
✂️ Prune for power: a good trim after blooming encourages a fuller plant and more flowers next season.
🥶 Chill out to bloom: a cooler, drier winter rest period (around 60°F/15°C) is the secret to a spectacular spring bloom.
💦 Humidity is happiness: place it in a bathroom or kitchen, or use a humidifier to mimic its tropical home and prevent crispy leaves.
🪴 Stay snug in the pot: it flowers best when slightly root-bound, so don’t be too quick to repot.
⬇️💧 Try bottom watering: let the pot soak up water from a tray for 20-30 minutes. This promotes stronger roots and helps prevent fungus gnats.
❓ Frequently Asked Questions
Why are my Goldfish Plant's leaves turning yellow?
Yellow leaves are most commonly a sign of overwatering. Ensure the soil is drying out slightly between waterings and that your pot has good drainage. It can also indicate a need for more light or a nutrient deficiency.How can I get my Goldfish Plant to flower?
To encourage blooming, provide plenty of bright, indirect light, be consistent with fertilizing during the growing season, and ensure it has a cooler, drier rest period in the winter. Pruning after a bloom cycle can also encourage more flowers.Is the Goldfish Plant toxic to cats and dogs?
No, the Goldfish Plant is considered non-toxic to cats and dogs, making it a pet-safe choice for your home.Why is my Goldfish Plant dropping its leaves?
Leaf drop can be caused by sudden changes in temperature, cold drafts, or improper watering (both too much and too little). Try to maintain a consistent environment for your plant.Should I mist my Goldfish Plant?
Yes, Goldfish Plants love high humidity. Misting several times a week, using a humidifier, or placing the plant on a pebble tray are all excellent ways to increase ambient humidity.My Goldfish Plant has long, bare stems. What should I do?
This is called ’leggy growth’ and it usually means the plant needs more light. Prune the leggy stems back to encourage a fuller, bushier plant. You can propagate the cuttings to create new plants.ℹ️ Goldfish Plant Info
Care and Maintenance
🪴 Soil Type and pH: Well-draining, peat-based, slightly acidic
💧 Humidity and Misting: High, 50% or more.
✂️ Pruning: Trim leggy stems after flowering to encourage bushier growth and more blooms.
🧼 Cleaning: Gently wipe leaves with a damp cloth to remove dust.
🌱 Repotting: Every 1-2 years or when root-bound.
🔄 Repotting Frequency: Every 1-2 years
❄️ Seasonal Changes in Care: Reduce watering in fall and winter. Stop fertilizing. Provide a cooler, drier rest period to encourage future blooming.
Growing Characteristics
💥 Growth Speed: Moderate
🔄 Life Cycle: Perennial
💥 Bloom Time: Spring and Summer
🌡️ Hardiness Zones: 10-11
🗺️ Native Area: Brazil
🚘 Hibernation: No, but has a winter rest period.
Propagation and Health
📍 Suitable Locations: Indoor, hanging baskets, shelves, windowsills with filtered light.
🪴 Propagation Methods: Stem cuttings in water or soil.
🐛 Common Pests: aphids, mealybugs, fungus-gnats, spider-mites, and whiteflies
🦠 Possible Diseases: Root rot, powdery mildew, fungal leaf spots.
Plant Details
🌿 Plant Type: Epiphyte, Vine
🍃 Foliage Type: Evergreen
🎨 Color of Leaves: Dark Green
🌸 Flower Color: Orange, Red, Yellow
🌼 Blooming: Blooms prolifically indoors with proper care.
🍽️ Edibility: Not edible.
📏 Mature Size: Vines can trail up to 3 feet
Additional Info
🌻 General Benefits: Adds a vibrant pop of color, unique flower shape is a great conversation starter.
💊 Medical Properties: None.
🧿 Feng Shui: Brings joyful and playful energy.
⭐ Zodiac Sign Compatibility:
🌈 Symbolism or Folklore: Abundance and happiness.
📝 Interesting Facts: The Goldfish Plant is an epiphyte in its native habitat, meaning it grows on other plants and trees, not in the ground. This is why it loves an airy, well-draining soil mix.
Buying and Usage
🛒 What to Look for When Buying: Look for a plant with plenty of glossy, green leaves and signs of budding or flowering. Check for pests on the undersides of leaves.
🪴 Other Uses: Perfect for hanging baskets where its trailing nature can be fully appreciated.
Decoration and Styling
🖼️ Display Ideas: Hanging baskets, placed on a high shelf to trail down, or on a bright windowsill.
🧵 Styling Tips: Its vibrant orange flowers contrast beautifully with plants that have dark green or purple foliage.