Fig Tree vs Onion Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Fig Tree
Ficus carica
Ficus carica, the common fig, is a deciduous tree or large shrub known for its edible fruit. Typically growing to 3-10 meters tall, it features a spreading habit and distinctive lobed leaves. While primarily an outdoor plant, it can be grown indoors with significant effort. People cultivate fig trees for their sweet, nutritious fruits, which can be eaten fresh, dried, or processed into jams and preserves. Indoor cultivation is challenging due to the plant's high light requirements and dormancy needs.
Onion
Allium cepa
The onion (Allium cepa) is a biennial plant, typically grown as an annual, cultivated for its edible bulb. It features hollow, bluish-green leaves and a bulb that develops at the base of the plant. Onions are primarily grown outdoors in gardens or fields. While it's possible to sprout an onion indoors, it's not typically grown to full maturity as a houseplant due to its strong odor and specific environmental needs. People grow onions for culinary purposes, adding flavor to a wide variety of dishes.
Quick Plant Comparison
| Feature | Fig Tree | Onion |
|---|---|---|
| Light | Full sun (at least 6-8 hours of direct sunlight daily) | Full sun (6-8 hours of direct sunlight daily) |
| Watering | Every 1-2 weeks, depending on environmental conditions and pot size. Allow soil to dry slightly between waterings. | Every 5-7 days, depending on weather and soil drainage |
| Humidity | 30-50% | 40-60% |
| Temperature | 15-27°C | 13-24°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate | Moderate |
| Max Height | 1-3 meters (indoors, with difficulty) | Outdoors: 30-60 cm. Indoors (sprouted): Up to 30cm |
| Pet Safety | ❌ Mildly Toxic | ❌ Toxic To Pets |
| Soil | Well-draining potting mix with perlite and sand to improve drainage. | Well-draining, fertile soil rich in organic matter |
| Beginner Friendly | ❌ No | With Caution |
| Weekly Maintenance | 30 minutes weekly | 30 minutes weekly (weeding, watering, pest control) |
🔬 Botanical Information — Comparing These Plants
Fig Tree
| Scientific Name | Ficus carica |
|---|---|
| Family | Moraceae |
| Native To | Western Asia and the Middle East |
| Also Known As | Common Fig, Edible Fig |
| Leaves | The leaves are large, deeply lobed, and rough in texture. They are typically a vibrant green color. Leaf size can vary depending on the variety and growing conditions, but generally range from 10-20 cm in length. |
| Flowers | Fig trees rarely flower indoors. The flowers are inside the fruit (syconium) and are not visible. |
Onion
| Scientific Name | Allium cepa |
|---|---|
| Family | Amaryllidaceae |
| Native To | Central Asia |
| Also Known As | Onion, Bulb Onion, Common Onion |
| Leaves | The leaves are hollow, cylindrical, and bluish-green, growing directly from the bulb. They are typically 30-50 cm long and taper to a point. |
| Flowers | Onions produce a spherical umbel of small, white or purple flowers on a tall stalk. Flowering is more common in the second year of growth. Flowering rarely occurs indoors. |
📏 Size & Growth — Plant Comparison
Fig Tree
Onion
🌱 Propagation — Comparing Plant Growth
Fig Tree
Methods: Stem cuttings, air layering, seed (though not recommended for cultivars)
Difficulty: Moderate
Tips: Take stem cuttings in spring or summer. Dip the cut end in rooting hormone and plant in moist potting mix. Maintain high humidity by covering with a plastic bag or dome until roots develop.
Onion
Methods: Seed, Bulb division
Difficulty: Easy
Tips: Start seeds indoors 8-10 weeks before the last frost or plant sets (small bulbs) directly in the garden after the last frost. For bulb division, separate small bulbs from a larger cluster and plant them individually.
✨ Benefits & Features — Comparing Plant Value
Fig Tree
The common fig is unique for its edible fruit, which is actually an inverted flower. It requires specific conditions to thrive indoors, making it a challenging but rewarding plant for experienced growers.
- ✓ Provides a unique and interesting aesthetic.
- ✓ Can potentially produce edible fruit (with proper care).
- ✓ Offers a connection to nature.
- ✓ Can be a rewarding challenge for experienced plant owners.
- ✓ May improve indoor air quality slightly through photosynthesis.
- ⚠️ Toxic to pets
Onion
The onion is a bulbous plant with a distinctive pungent odor and flavor. Its layers of fleshy scales form the edible bulb, which is used in a wide variety of culinary applications.
- ✓ Provides fresh, flavorful onions for cooking.
- ✓ Rich in vitamins and minerals.
- ✓ Can deter pests in the garden.
- ✓ Offers a rewarding gardening experience.
- ✓ Supports sustainable food practices.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Fig Tree
Onion
🌞 Light Requirements
Fig Tree
Full sun (at least 6-8 hours of direct sunlight daily)
Low light tolerant: ❌ No
Onion
Full sun (6-8 hours of direct sunlight daily)
Low light tolerant: ❌ No
💧 Watering Needs
Fig Tree
Water thoroughly when the top inch of soil is dry. Allow excess water to drain away. Overwatering can lead to root rot, indicated by yellowing leaves and a musty smell. Underwatering results in wilting and leaf drop.
Onion
Water deeply when the top inch of soil is dry. Avoid overwatering, which can lead to bulb rot. Signs of overwatering include yellowing leaves and a soft, mushy bulb. Underwatering is indicated by wilting leaves and stunted growth.
🌡️ Temperature & Humidity
Fig Tree
Temperature: 15-27°C
Humidity: 30-50%
Onion
Temperature: 13-24°C
Humidity: 40-60%
🤔 Which Plant Is Right For You?
Fig Tree
Ficus caricaExperienced plant enthusiasts willing to provide the specific conditions required for an outdoor tree to survive indoors.
✅ Choose This Plant If...
- You have a very sunny south-facing window and supplemental grow lights.
- You are experienced with finicky plants and understand their needs.
- You are willing to provide a cool dormancy period in winter.
- You are primarily interested in the aesthetic of the plant, not necessarily fruiting.
- You are prepared to deal with potential pest infestations.
❌ Skip This Plant If...
- You have low light conditions in your home.
- You are a beginner plant owner.
- You are primarily interested in harvesting figs indoors.
- You are not able to provide a cool dormancy period.
- You have pets that might ingest the plant.
Onion
Allium cepaGardeners looking to grow their own culinary onions.
✅ Choose This Plant If...
- You want to grow your own fresh onions for cooking.
- You have a sunny outdoor garden space.
- You enjoy the process of nurturing plants from seed to harvest.
- You want to control the quality and source of your food.
- You are looking for a companion plant to deter pests in your vegetable garden.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You lack a sunny outdoor space.
- You are sensitive to strong odors.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Fig Tree needs full sun (at least 6-8 hours of direct sunlight daily), while Onion prefers full sun (6-8 hours of direct sunlight daily).
💡 Pro Tips For Comparing These Plants
Fig Tree Care Tips
Ficus carica is primarily an outdoor tree and requires significant effort to grow indoors. It needs very bright light, well-draining soil, and a distinct dormancy period in winter. Indoor figs are prone to pest infestations and may not fruit reliably.
- Provide at least 6-8 hours of direct sunlight daily, supplementing with grow lights if necessary.
- Ensure excellent drainage to prevent root rot.
- Allow the soil to dry slightly between waterings.
- Provide a cool dormancy period in winter by reducing watering and keeping the plant in a cooler location.
- Monitor regularly for pests and treat promptly.
Onion Care Tips
Onions are primarily outdoor plants requiring full sun and well-drained soil. Growing them indoors is challenging due to their need for intense sunlight and the potential for strong odors. While sprouting an onion indoors is possible, achieving a mature bulb is difficult.
- Plant in well-drained soil amended with compost.
- Water deeply but infrequently, allowing the soil to dry slightly between waterings.
- Fertilize regularly during the growing season with a balanced fertilizer.
- Protect from pests and diseases with appropriate measures.
- Harvest when the tops begin to fall over and the bulbs are mature.
⚠️ Common Problems & Solutions — Plant Care Comparison
Fig Tree
Onion
❓ Frequently Asked Questions — Comparing These Plants
Fig Tree
What are the light requirements for Fig Tree?
Fig trees need bright, indirect light to thrive. Direct sunlight can scorch their leaves, especially during the hottest part of the day. An east-facing window is often ideal, providing gentle morning light. A south- or west-facing window can also work, but be sure to filter the light with a sheer curtain.
How do I care for Fig Tree?
Fig trees thrive in bright, indirect light. Water thoroughly when the top inch of soil feels dry to the touch, but avoid overwatering, which can lead to root rot. Ensure the pot has good drainage. Maintain a consistent temperature between 65-75°F (18-24°C). Fig trees prefer moderate to high humidity. Fertilize monthly during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength.
How do I propagate Fig Tree?
Fig trees can be propagated through stem cuttings or air layering. For stem cuttings, take a 4-6 inch cutting from a healthy stem. 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 and humid. Roots should develop in a few weeks.
Onion
What are the light requirements for Onion?
Flowering onions require ample sunlight to thrive and produce abundant blooms. Aim for at least 6-8 hours of direct sunlight per day. Inadequate light can lead to leggy growth, weak stems, and reduced flowering. If growing indoors, place your onion plant near a south-facing window where it can receive maximum sunlight exposure. If natural light is insufficient, supplement with grow lights. Rotate the plant regularly to ensure even light distribution and prevent it from leaning towards the light source. Monitor the foliage for signs of sunburn, which can occur if the plant is exposed to intense afternoon sun. Adjust the placement or provide shade if necessary.
How do I care for Onion?
Flowering onions thrive with proper care. Plant bulbs in well-draining soil in a sunny location. Water thoroughly after planting and then moderately, allowing the soil to dry slightly between waterings. Fertilize sparingly with a balanced fertilizer during the growing season, and increase phosphorus before blooming. Deadhead spent flowers to encourage continued blooming. Provide support for taller varieties to prevent drooping. In colder climates, protect bulbs with a layer of mulch during winter. Monitor for pests and diseases, and address promptly. Ensure good air circulation to prevent fungal issues. Repot container-grown onions every few years to refresh the soil. Regular check-ups will keep your onion plant healthy and flourishing.
How do I propagate Onion?
Flowering onions can be propagated through several methods. Division is the most common and easiest. When the plant is dormant, carefully dig up the clump and separate the bulbs. Replant the individual bulbs in well-draining soil. Stem cuttings are not typically used for onion propagation. Keiki (small plantlets that form on the flower stalk) are rare in onions. For bulb offsets, detach them carefully from the mother bulb and plant them separately. Water regularly and provide adequate sunlight. Propagation is best done in the fall or early spring. Ensure the new plants have adequate space to develop their root systems. With proper care, the propagated onions will develop into mature, flowering plants within a year or two.
Last updated: April 24, 2026 — Plant care data reviewed and verified by our editorial team.