Flowering Onion vs Lipstick Plant Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Flowering Onion
Allium spp.
Flowering onions, or ornamental alliums, are bulbous perennials grown for their showy, spherical flower heads composed of numerous small, star-shaped flowers. They come in various sizes and colors, ranging from white and pink to purple and deep burgundy. Most are outdoor plants, thriving in gardens and borders. While some smaller varieties can be grown in containers, they are not ideally suited for indoor environments due to their high light requirements and dormancy needs. People grow them for their striking blooms, architectural interest, and ability to attract pollinators.
Lipstick Plant
Aeschynanthus radicans
The Lipstick Plant (Aeschynanthus radicans) is an epiphytic vine prized for its unique flowers that resemble tubes of lipstick emerging from a dark-colored case. It features long, trailing stems adorned with small, oval-shaped, dark green leaves. Primarily grown as a hanging plant, it thrives indoors with proper care. Its cascading growth habit and vibrant blooms make it a popular choice for adding a touch of the tropics to homes. While it can survive outdoors in very warm climates, it's predominantly an indoor plant due to its sensitivity to cold temperatures.
Quick Plant Comparison
| Feature | Flowering Onion | Lipstick Plant |
|---|---|---|
| Light | Full sun (at least 6-8 hours of direct sunlight per day) | Bright, indirect light. Avoid direct sunlight, which can scorch the leaves. |
| Watering | Every 1-2 weeks during the growing season, less frequently during dormancy. | Every 7-10 days, adjust based on environmental conditions and pot size. |
| Humidity | 40-60% | 50-70% |
| Temperature | 15-25°C | 18-24°C |
| Care Level | Expert | Moderate |
| Growth Rate | Moderate | Moderate |
| Max Height | Variable, depending on the species, but typically 30-150 cm outdoors. Indoors, expect smaller sizes if grown in containers. | 30-60 cm (indoors) |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining soil, such as a mix of potting soil, sand, and perlite. | Well-draining potting mix, such as a mix of peat moss, perlite, and orchid bark. |
| Beginner Friendly | ❌ No | With Caution |
| Weekly Maintenance | 10 minutes weekly during the growing season. | 10 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Flowering Onion
| Scientific Name | Allium spp. |
|---|---|
| Family | Amaryllidaceae |
| Native To | Various species originate from different regions, including Europe, Asia, and North America. |
| Also Known As | Flowering Onion, Ornamental Onion, Allium |
| Leaves | The leaves are typically linear or strap-shaped, often with a bluish-green hue. They emerge from the base of the plant and may wither as the plant flowers. |
| Flowers | Flowering onions produce showy, spherical flower heads composed of numerous small, star-shaped flowers. The flowers come in various colors, including white, pink, purple, and burgundy. They rarely flower indoors due to light requirements. |
Lipstick Plant
| Scientific Name | Aeschynanthus radicans |
|---|---|
| Family | Gesneriaceae |
| Native To | Malaysia, Indonesia, Thailand, Vietnam |
| Also Known As | Lipstick Plant, Lipstick Vine |
| Leaves | Small, oval-shaped leaves, typically 2-5 cm long. They are usually a deep green color and have a slightly waxy texture. |
| Flowers | Yes, it can flower indoors with proper care. The flowers are tubular, bright red, and emerge from dark-colored bracts, resembling tubes of lipstick. |
📏 Size & Growth — Plant Comparison
Flowering Onion
Lipstick Plant
🌱 Propagation — Comparing Plant Growth
Flowering Onion
Methods: Bulb offsets, Seed
Difficulty: Moderate
Tips: Separate bulb offsets from the main bulb in the fall and replant them. Sow seeds in the spring after a period of cold stratification.
Lipstick Plant
Methods: Stem cuttings
Difficulty: Easy
Tips: Take 10-15 cm stem cuttings with at least 2-3 nodes. Remove the lower leaves and place the cutting in water or directly into moist potting mix. Keep the cutting in a warm, humid environment until roots develop.
✨ Benefits & Features — Comparing Plant Value
Flowering Onion
Flowering onions are known for their distinctive spherical flower heads, which can range in size from a golf ball to a softball. They offer a unique architectural element in the garden and attract beneficial insects.
- ✓ Attracts pollinators to the garden
- ✓ Deer-resistant, protecting other plants
- ✓ Adds architectural interest with unique flower shapes
- ✓ Provides long-lasting blooms for visual appeal
- ✓ Low-maintenance once established
- ⚠️ Toxic to pets
Lipstick Plant
The Lipstick Plant is distinguished by its unique flowers that emerge from dark-colored bracts, resembling tubes of lipstick. Its trailing growth habit and epiphytic nature make it a visually appealing and adaptable houseplant.
- ✓ Adds a vibrant pop of color to indoor spaces.
- ✓ Unique and eye-catching flowers serve as a conversation starter.
- ✓ Relatively easy to propagate, allowing you to expand your collection.
- ✓ Trailing growth habit adds visual interest to hanging baskets.
- ✓ Can help improve indoor humidity levels.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Flowering Onion
Lipstick Plant
🌞 Light Requirements
Flowering Onion
Full sun (at least 6-8 hours of direct sunlight per day)
Low light tolerant: ❌ No
Lipstick Plant
Bright, indirect light. Avoid direct sunlight, which can scorch the leaves.
Low light tolerant: ❌ No
💧 Watering Needs
Flowering Onion
Water thoroughly when the top inch of soil is dry. Avoid overwatering, which can lead to bulb rot. Reduce watering during dormancy. Signs of overwatering include yellowing leaves and a mushy bulb. Underwatering is indicated by wilting leaves and stunted growth.
Lipstick Plant
Water thoroughly when the top inch of soil feels dry. Ensure good drainage to prevent root rot. Overwatering can lead to yellowing leaves and stem rot. Underwatering results in shriveled leaves and bud drop.
🌡️ Temperature & Humidity
Flowering Onion
Temperature: 15-25°C
Humidity: 40-60%
Lipstick Plant
Temperature: 18-24°C
Humidity: 50-70%
🤔 Which Plant Is Right For You?
Flowering Onion
Allium spp.Gardeners looking for striking, low-maintenance perennials to add architectural interest and attract pollinators to their outdoor spaces.
✅ Choose This Plant If...
- You want a deer-resistant plant for your garden
- You want to attract pollinators like bees and butterflies
- You appreciate unique, globe-shaped flowers
- You have a sunny garden space
- You want a low-maintenance perennial that returns year after year
❌ Skip This Plant If...
- You have pets that might ingest the plant
- You don't have a sunny outdoor space
- You are looking for an easy indoor plant
Lipstick Plant
Aeschynanthus radicansPlant enthusiasts looking for a unique and visually appealing hanging plant with vibrant blooms.
✅ Choose This Plant If...
- You want a unique hanging plant with vibrant, eye-catching flowers.
- You have a bright, indirect light location in your home.
- You enjoy the challenge of providing moderate humidity for tropical plants.
- You are looking for a plant that can be easily propagated from cuttings.
- You appreciate plants with a trailing growth habit.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You struggle to provide adequate humidity for tropical plants.
- You tend to overwater your plants.
- You don't have a location with bright, indirect light.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Flowering Onion is rated Expert care level, while Lipstick Plant is Moderate.
💡 Pro Tips For Comparing These Plants
Flowering Onion Care Tips
Flowering onions are primarily outdoor plants requiring full sun and well-draining soil. Indoor cultivation is challenging due to their high light needs and dormancy requirements. They are toxic to pets, so caution is needed if grown in areas accessible to animals. Regular watering and occasional fertilization are necessary for optimal growth.
- Plant bulbs in well-draining soil to prevent rot
- Provide full sun for optimal flowering
- Water deeply but infrequently, allowing the soil to dry out between waterings
- Fertilize in early spring and after flowering to promote bulb growth
- Remove spent flower heads to encourage bulb development
Lipstick Plant Care Tips
Lipstick Plants are relatively easy to care for indoors, requiring bright, indirect light, well-draining soil, and moderate humidity. Consistent watering and occasional fertilization will encourage healthy growth and flowering. Watch out for pests and diseases.
- Provide bright, indirect light to encourage flowering.
- Maintain consistent moisture, but avoid overwatering.
- Increase humidity by misting regularly or using a humidifier.
- Fertilize regularly during the growing season to promote healthy growth.
- Prune after flowering to maintain shape and encourage bushier growth.
⚠️ Common Problems & Solutions — Plant Care Comparison
Flowering Onion
Lipstick Plant
❓ Frequently Asked Questions — Comparing These Plants
Flowering Onion
What are the light requirements for Flowering Onion?
Flowering Onions need ample sunlight to produce vibrant blooms. Aim for at least 6 hours of direct sunlight per day. If growing indoors, place them near a south-facing window where they can receive the most sunlight. Insufficient light can result in weak stems, pale foliage, and a lack of flowers. If natural light is limited, supplement with grow lights to provide the necessary intensity. Rotate the plant regularly to ensure even light exposure on all sides. Consider using a light meter to measure the light intensity and adjust the plant’s position accordingly.
How do I care for Flowering Onion?
Flowering Onions thrive in well-draining soil and require full sun to partial shade for optimal growth and flowering. Water thoroughly when the top inch of soil feels dry, allowing excess water to drain away. Avoid overwatering, as this can lead to bulb rot. Fertilize during the growing season (spring and summer) with a balanced, slow-release fertilizer or a liquid feed diluted to half strength every 2-4 weeks to promote abundant blooms. Deadhead spent flowers to encourage further blooming and prevent seed production. Protect from frost in colder climates by mulching heavily or moving potted plants indoors. Repot every 2-3 years as needed, using a pot slightly larger than the previous one. Ensure good air circulation around the plants to prevent fungal diseases.
How do I propagate Flowering Onion?
Flowering Onions can be propagated through division, a relatively simple method. In the fall, after the foliage has died back, carefully dig up the bulbs. Separate the smaller bulblets from the main bulb. Replant the bulblets in well-draining soil, spacing them a few inches apart. Water thoroughly and mulch to protect them from frost. They may take a year or two to reach flowering size. Stem cuttings and keiki propagation are not applicable to Flowering Onions, as they are bulbous plants. Division is the primary method for increasing your stock of these beautiful plants. Ensure the bulblets have some roots attached for best results.
Lipstick Plant
What are the light requirements for Lipstick Plant?
Lipstick Plants require bright, indirect light to thrive. East-facing windows are ideal, as they provide gentle morning sun. West- or south-facing windows can work if the plant is placed a few feet away to avoid direct sunlight, which can scorch the leaves. Insufficient light can result in fewer flowers and leggy growth. If you don’t have adequate natural light, consider using a grow light to supplement. Rotate the plant regularly to ensure even growth on all sides. During the winter months, when light levels are lower, you may need to move the plant to a brighter location or increase the use of grow lights. Observing the plant’s growth and leaf color will help you determine if it’s receiving the appropriate amount of light.
How do I care for Lipstick Plant?
Lipstick 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. Use a well-draining potting mix, such as a mix of peat moss, perlite, and vermiculite. Fertilize monthly during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. Maintain a humidity level of 50-70%, which can be achieved by misting, using a humidifier, or placing the plant on a pebble tray. Prune regularly to encourage bushier growth and remove any dead or yellowing leaves. Provide a support structure, such as a trellis or moss pole, if you want the plant to climb, or allow it to trail freely from a hanging basket. Repot every 1-2 years as needed, using a slightly larger pot.
How do I propagate Lipstick Plant?
Lipstick Plants can be easily propagated via stem cuttings. Take a 4-6 inch cutting from a healthy stem, ensuring it has several leaves. Remove the lower leaves and place the cutting in water or directly into moist potting mix. For water propagation, change the water every few days. Roots should develop within a few weeks. Once roots are established, plant the cutting in a pot with well-draining soil. Layering is another option. Pin a stem to the soil while still attached to the mother plant. Once roots form, sever the new plant from the mother.
Last updated: May 16, 2026 — Plant care data reviewed and verified by our editorial team.