Goldfish Plant vs Mandarin Orange Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Goldfish Plant
Nematanthus gregarius
The Goldfish Plant (Nematanthus gregarius) is an epiphytic shrub known for its unique flowers that resemble small goldfish. It features glossy, dark green, oval-shaped leaves and produces vibrant orange-red flowers from spring to fall. While it can be grown indoors, it requires specific conditions to thrive and flower reliably. It's a popular choice for hanging baskets due to its trailing growth habit. People grow it for its unusual and attractive flowers, adding a touch of whimsy to indoor spaces.
Mandarin Orange
Citrus reticulata
The Mandarin orange is a small, evergreen tree typically reaching 2-8 meters in height. It's known for its easily peeled fruit with a sweet, slightly tart flavor. While primarily an outdoor tree cultivated for commercial fruit production, it can be grown in containers indoors with significant effort. People grow Mandarin oranges for their delicious fruit, ornamental value (fragrant blossoms and attractive foliage), and as a symbol of good fortune in some cultures. Indoor cultivation is challenging due to high light and humidity requirements.
Quick Plant Comparison
| Feature | Goldfish Plant | Mandarin Orange |
|---|---|---|
| Light | Bright, indirect light. Avoid direct sunlight, which can scorch the leaves. | Full sun (at least 6-8 hours of direct sunlight daily) |
| Watering | Every 7-10 days, depending on environmental conditions. | Outdoors: Every 1-2 weeks depending on weather. Indoors: Every 7-10 days, adjusting for humidity and light levels. |
| Humidity | 50-70% | 50-70% |
| Temperature | 18-24°C | 18-29°C |
| Care Level | Moderate | Expert |
| Growth Rate | Moderate | Moderate |
| Max Height | 30-60 cm | Outdoors: 2-8 meters. Indoors: 1-2 meters (in a container) |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining potting mix, such as a mix of peat moss, perlite, and vermiculite. | Well-draining citrus potting mix |
| Beginner Friendly | With Caution | ❌ No |
| Weekly Maintenance | 15 minutes weekly | 30-60 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Goldfish Plant
| Scientific Name | Nematanthus gregarius |
|---|---|
| Family | Gesneriaceae |
| Native To | Brazil |
| Also Known As | Goldfish Plant, Guppy Plant |
| Leaves | The leaves are glossy, dark green, and oval-shaped, with a slightly succulent texture. They are typically 2-5 cm long and arranged oppositely along the stems. The foliage provides an attractive backdrop to the vibrant flowers. |
| Flowers | The Goldfish Plant produces vibrant orange-red flowers that resemble small goldfish. The flowers are typically 2-3 cm long and appear in clusters at the ends of the stems. Flowering occurs primarily in spring and summer, but can occur sporadically throughout the year under optimal conditions. |
Mandarin Orange
| Scientific Name | Citrus reticulata |
|---|---|
| Family | Rutaceae |
| Native To | Southeast Asia, possibly China or Vietnam |
| Also Known As | Mandarin, Mandarin orange, Tangerine |
| Leaves | Glossy, dark green, oval-shaped leaves with a pointed tip. Leaves are typically 5-10 cm long and have a distinct citrus scent when crushed. |
| Flowers | Rarely flowers indoors unless optimal conditions are met. Flowers are small, white, and highly fragrant. |
📏 Size & Growth — Plant Comparison
Goldfish Plant
Mandarin Orange
🌱 Propagation — Comparing Plant Growth
Goldfish Plant
Methods: Stem cuttings
Difficulty: Easy
Tips: Take stem cuttings in spring or summer. Dip the cut end in rooting hormone and plant in a well-draining potting mix. Keep the soil moist and provide high humidity.
Mandarin Orange
Methods: Seed, grafting, air layering
Difficulty: Moderate
Tips: Grafting is the most reliable method for fruit production. Seeds may not produce true-to-type offspring. Air layering can be used to create new plants from existing branches.
✨ Benefits & Features — Comparing Plant Value
Goldfish Plant
The Goldfish Plant is known for its unique flowers that resemble small goldfish, making it a conversation starter. Its trailing growth habit makes it ideal for hanging baskets, adding a touch of whimsy to indoor spaces.
- ✓ Adds a unique and whimsical touch to indoor spaces.
- ✓ Provides visual interest with its unusual flowers.
- ✓ Can be grown in hanging baskets, saving space.
- ✓ Offers a sense of accomplishment when it blooms successfully.
- ✓ Enhances the aesthetic appeal of a room.
- ⚠️ Toxic to pets
Mandarin Orange
The Mandarin orange is known for its easy-to-peel skin and segmented fruit. Indoor cultivation is challenging, making it a rewarding accomplishment for experienced gardeners.
- ✓ Aesthetic appeal with glossy leaves and fragrant flowers.
- ✓ Potential for homegrown fruit.
- ✓ Can improve indoor air quality slightly.
- ✓ Provides a sense of accomplishment for successful cultivation.
- ✓ Offers a connection to nature indoors.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Goldfish Plant
Mandarin Orange
🌞 Light Requirements
Goldfish Plant
Bright, indirect light. Avoid direct sunlight, which can scorch the leaves.
Low light tolerant: ❌ No
Mandarin Orange
Full sun (at least 6-8 hours of direct sunlight daily)
Low light tolerant: ❌ No
💧 Watering Needs
Goldfish Plant
Water thoroughly when the top inch of soil feels dry to the touch. Ensure good drainage to prevent root rot. Overwatering can lead to leaf drop and fungal diseases. Underwatering will cause the leaves to shrivel and the flower buds to drop.
Mandarin Orange
Water thoroughly when the top inch of soil is dry. Overwatering can lead to root rot, indicated by yellowing leaves and a musty smell. Underwatering results in wilting and leaf drop. Ensure good drainage.
🌡️ Temperature & Humidity
Goldfish Plant
Temperature: 18-24°C
Humidity: 50-70%
Mandarin Orange
Temperature: 18-29°C
Humidity: 50-70%
🤔 Which Plant Is Right For You?
Goldfish Plant
Nematanthus gregariusExperienced plant owners who can provide the specific light and humidity conditions needed for flowering.
✅ Choose This Plant If...
- You love unique and unusual flowers.
- You can provide bright, indirect light and moderate humidity.
- You enjoy a plant that can be grown in a hanging basket.
- You are willing to provide regular fertilization during the growing season.
- You are an experienced plant owner looking for a rewarding challenge.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You cannot provide bright, indirect light.
- You tend to overwater your plants.
Mandarin Orange
Citrus reticulataExperienced plant enthusiasts who are willing to provide the specific conditions needed for citrus trees to thrive indoors.
✅ Choose This Plant If...
- You want to enjoy the fragrance of citrus blossoms indoors.
- You are experienced with citrus tree care and can provide adequate light and humidity.
- You want the challenge of growing your own fruit indoors.
- You appreciate the ornamental value of a small citrus tree.
- You have a bright, sunny location and are willing to supplement with grow lights.
❌ Skip This Plant If...
- You have limited sunlight or space.
- You are a beginner plant owner.
- You are not prepared to provide the high humidity levels required.
- You are looking for a low-maintenance indoor plant.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Goldfish Plant is rated Moderate care level, while Mandarin Orange is Expert.
💡 Pro Tips For Comparing These Plants
Goldfish Plant Care Tips
Goldfish Plants require bright, indirect light, moderate humidity, and well-draining soil. Consistent watering is crucial, but avoid overwatering. They can be challenging to flower indoors without proper light and humidity. Regular fertilization during the growing season is beneficial.
- Provide bright, indirect light to encourage flowering.
- Maintain moderate humidity by misting regularly or using a humidifier.
- Water thoroughly when the top inch of soil feels dry.
- Fertilize every 2-4 weeks during the growing season with a balanced liquid fertilizer.
- Prune after flowering to promote bushier growth.
Mandarin Orange Care Tips
Mandarin orange trees are challenging to grow indoors due to their high light, humidity, and temperature requirements. Consistent care, including supplemental lighting and regular fertilization, is crucial for success. Fruit production indoors is not guaranteed.
- Use a citrus-specific potting mix for optimal drainage.
- Provide supplemental lighting, especially during winter months.
- Maintain high humidity levels with a humidifier or pebble tray.
- Fertilize regularly with a citrus-specific fertilizer during the growing season.
- Protect from drafts and sudden temperature changes.
⚠️ Common Problems & Solutions — Plant Care Comparison
Goldfish Plant
Mandarin Orange
❓ Frequently Asked Questions — Comparing These Plants
Goldfish Plant
What are the light requirements for Goldfish Plant?
Goldfish Plants require bright, indirect light to thrive and produce their signature blooms. East- or west-facing windows are ideal, providing ample light without the harsh intensity of direct sunlight. Avoid placing the plant in direct south-facing windows, especially during the hottest part of the day, as this can cause leaf burn. If natural light is insufficient, supplement with a grow light. Insufficient light can result in leggy growth, fewer blooms, and pale leaves. Rotate the plant regularly to ensure even light exposure on all sides. A general rule is if you need a lamp to comfortably read in the spot the plant is in, the plant likely needs more light.
How do I care for Goldfish Plant?
Goldfish Plants thrive in bright, indirect light; avoid direct sunlight, which can scorch the leaves. Water thoroughly when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Maintain high humidity levels, ideally between 50-70%, using a humidifier or pebble tray. Fertilize every 2-4 weeks during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength to encourage blooming. Prune regularly to maintain shape and encourage bushier growth. Repot every 1-2 years in spring, using a well-draining potting mix. Provide temperatures between 65-75°F (18-24°C). Protect from drafts and sudden temperature changes. Watch for pests like aphids or mealybugs, and treat promptly if detected. During the dormant winter months, reduce watering and fertilization.
How do I propagate Goldfish Plant?
Goldfish Plants can be easily propagated through stem cuttings. Take a 4-6 inch stem cutting from a healthy plant. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cutting in a well-draining potting mix and keep it moist. Cover with a plastic bag or humidity dome to maintain high humidity. Place in bright, indirect light. Roots should develop in 4-6 weeks. Once rooted, transplant into a larger pot. Division is possible when repotting mature plants. Keiki formation is not common in Goldfish Plants. Ensure the humidity levels are high for successful propagation.
Mandarin Orange
What are the light requirements for Mandarin Orange?
Mandarin Orange trees require ample sunlight to thrive and produce fruit. Aim for at least 6-8 hours of bright, indirect light per day. A south-facing window is ideal, but east or west-facing windows can also work if supplemented with grow lights. Insufficient light can lead to leggy growth, reduced flowering, and poor fruit production.
How do I care for Mandarin Orange?
Mandarin Orange trees thrive indoors with bright, indirect sunlight, ideally near a south-facing window. Water thoroughly when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Maintain a consistent temperature between 65-80°F (18-27°C) and provide moderate humidity. Fertilize monthly during the growing season (spring and summer) with a citrus-specific fertilizer.
How do I propagate Mandarin Orange?
Mandarin Orange trees can be propagated through stem cuttings or air layering. For stem cuttings, take a 4-6 inch cutting from a healthy branch, remove the lower leaves, and dip the cut end in rooting hormone. Plant the cutting in a well-draining potting mix and keep it moist.
Last updated: May 16, 2026 — Plant care data reviewed and verified by our editorial team.