Cup and Saucer Vine vs Lily Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Cup and Saucer Vine
Cobaea scandens
Cobaea scandens, commonly known as the Cup and Saucer Vine, is a vigorous, fast-growing perennial climber typically grown as an annual in temperate climates. It features distinctive cup-shaped flowers (the 'cup') sitting atop a saucer-like calyx. The flowers start as greenish-white and mature to a rich purple, attracting pollinators like bees and hummingbirds. It's primarily an outdoor plant, prized for its rapid growth and ability to cover fences, walls, and trellises quickly. While some attempt to grow it indoors, it requires very bright light and significant space, making it challenging.
Lily
Lilium spp.
Lilies are bulbous herbaceous perennials known for their large, prominent flowers. They are primarily outdoor plants, thriving in gardens and landscapes. Lilies exhibit a wide range of flower colors, shapes, and sizes, making them popular ornamental plants. They are grown for their aesthetic appeal, fragrance, and use in cut flower arrangements. While some varieties can be forced to bloom indoors, maintaining their long-term health and vigor indoors is challenging.
Quick Plant Comparison
| Feature | Cup and Saucer Vine | Lily |
|---|---|---|
| Light | Full sun to partial shade outdoors. Indoors, requires very bright, direct sunlight for at least 6 hours daily. | Full sun to partial shade outdoors. Indoors, requires very bright, direct light, ideally a south-facing window. |
| Watering | Every 2-5 days outdoors during the growing season, depending on weather. Every 7-10 days indoors, allowing the soil to dry slightly between waterings. | Outdoors: 1-2 times per week depending on weather. Indoors: Every 7-10 days, allowing the soil to dry slightly between waterings. |
| Humidity | 40-60% | 40-60% |
| Temperature | 18-27°C | 15-25°C |
| Care Level | Expert | Expert |
| Growth Rate | Fast | Moderate |
| Max Height | Outdoors: 6-12 meters. Indoors: 1-3 meters (highly variable and dependent on light). | Indoors: 30-90 cm (highly variable depending on the variety; often smaller than outdoor specimens) |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining, fertile soil. A mix of potting soil, perlite, and compost is suitable. | Well-draining, slightly acidic to neutral soil mix. A mix of potting soil, perlite, and compost is suitable. |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30-60 minutes weekly (including watering, fertilizing, and pruning) | 15 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Cup and Saucer Vine
| Scientific Name | Cobaea scandens |
|---|---|
| Family | Polemoniaceae |
| Native To | Mexico, Central America |
| Also Known As | Cup and Saucer Vine, Cathedral Bells, Mexican Ivy, Monastery Bells |
| Leaves | The leaves are compound, with 3-9 leaflets. The leaflets are ovate to elliptic, with smooth edges. They are typically a medium to dark green color. |
| Flowers | It flowers outdoors in summer and fall. The flowers are cup-shaped, with a saucer-like calyx. They start as greenish-white and mature to a rich purple. Flowering indoors is rare and requires optimal conditions. |
Lily
| Scientific Name | Lilium spp. |
|---|---|
| Family | Liliaceae |
| Native To | Primarily Northern Hemisphere, including Europe, Asia, and North America |
| Also Known As | Lily, True Lily |
| Leaves | The leaves are typically lance-shaped, smooth, and green. They are arranged alternately or in whorls along the stem. Leaf size varies depending on the variety. |
| Flowers | Lilies may flower indoors if given sufficient light and proper care, but it is not guaranteed. The flowers are large, trumpet-shaped, and come in a wide range of colors, including white, pink, yellow, orange, and red. They are often fragrant. |
📏 Size & Growth — Plant Comparison
Cup and Saucer Vine
Lily
🌱 Propagation — Comparing Plant Growth
Cup and Saucer Vine
Methods: Seed, Stem cuttings
Difficulty: Moderate
Tips: For seeds, scarify them lightly before sowing to improve germination. For stem cuttings, take semi-hardwood cuttings in late summer and root them in a well-draining medium.
Lily
Methods: Bulb offsets, scaling, seed
Difficulty: Moderate
Tips: Separate bulb offsets when repotting. Scaling involves removing individual scales from the bulb and planting them in a moist medium. Seeds can be sown, but flowering may take several years.
✨ Benefits & Features — Comparing Plant Value
Cup and Saucer Vine
The cup-shaped flowers with their saucer-like calyx are highly distinctive. The flowers also change color as they mature, adding to their visual appeal. Its rapid growth rate allows it to quickly cover large areas.
- ✓ Provides shade and privacy outdoors.
- ✓ Attracts pollinators to your garden.
- ✓ Adds a unique and visually appealing element to your landscape.
- ✓ Offers a sense of accomplishment for experienced gardeners.
- ✓ Can be used to create a lush, green backdrop.
- ⚠️ Toxic to pets
Lily
Lilies are known for their large, showy flowers and strong fragrance. They are bulbous perennials, meaning they grow from bulbs that can be replanted year after year. The flowers come in a wide variety of colors and shapes, making them a popular choice for gardens and cut flower arrangements.
- ✓ Aesthetically pleasing flowers that can brighten up a space.
- ✓ Fragrant blooms can add a pleasant scent to the home (if they bloom).
- ✓ Can be a rewarding challenge for experienced gardeners.
- ✓ Provides a connection to nature indoors.
- ✓ Can be used as a temporary indoor display before planting outdoors.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Cup and Saucer Vine
Lily
🌞 Light Requirements
Cup and Saucer Vine
Full sun to partial shade outdoors. Indoors, requires very bright, direct sunlight for at least 6 hours daily.
Low light tolerant: ❌ No
Lily
Full sun to partial shade outdoors. Indoors, requires very bright, direct light, ideally a south-facing window.
Low light tolerant: ❌ No
💧 Watering Needs
Cup and Saucer Vine
Water deeply when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Outdoors, water more frequently during hot, dry periods. Indoors, ensure good drainage. Signs of underwatering include wilting leaves; overwatering includes yellowing leaves and soggy soil.
Lily
Water thoroughly when the top inch of soil feels dry. Avoid overwatering, which can lead to bulb rot. Ensure good drainage. Signs of overwatering include yellowing leaves and a mushy bulb. Underwatering results in wilting and browning leaf tips.
🌡️ Temperature & Humidity
Cup and Saucer Vine
Temperature: 18-27°C
Humidity: 40-60%
Lily
Temperature: 15-25°C
Humidity: 40-60%
🤔 Which Plant Is Right For You?
Cup and Saucer Vine
Cobaea scandensExperienced gardeners in warm climates looking for a fast-growing vine to cover outdoor structures.
✅ Choose This Plant If...
- You want a fast-growing vine to quickly cover a fence or trellis outdoors.
- You live in a warm climate where it can thrive year-round.
- You are an experienced gardener willing to provide the intense light it needs indoors.
- You are looking for a plant that attracts hummingbirds and bees to your garden.
- You appreciate unique and unusual flower shapes.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You lack a very sunny location indoors.
- You are a beginner gardener.
- You don't want a plant that requires frequent pruning.
- You live in a cold climate and don't want to treat it as an annual.
Lily
Lilium spp.Experienced gardeners who want to attempt growing lilies indoors with supplemental lighting and careful monitoring.
✅ Choose This Plant If...
- You love the look and fragrance of lilies and are willing to provide the intense light they need indoors.
- You are an experienced gardener and enjoy a challenge.
- You are able to keep lilies completely away from pets.
- You have a bright, south-facing window or grow lights to provide adequate light.
- You are willing to carefully monitor watering to prevent bulb rot.
❌ Skip This Plant If...
- You have cats, as lilies are extremely toxic to them.
- You are a beginner gardener, as lilies can be challenging to grow indoors.
- You do not have a very bright, sunny location in your home.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Cup and Saucer Vine has fast growth, while Lily grows moderate.
💡 Pro Tips For Comparing These Plants
Cup and Saucer Vine Care Tips
Cup and Saucer Vine is primarily an outdoor plant. Indoor cultivation is challenging due to its high light requirements and rapid growth. It needs a large, sunny window and regular pruning to control its size. Toxicity to pets is a significant concern.
- Provide sturdy support for climbing, as the vine can become heavy.
- Water deeply but infrequently, allowing the soil to dry slightly between waterings.
- Fertilize regularly during the growing season to promote flowering.
- Prune aggressively to control its size and shape, especially indoors.
- Monitor for pests and diseases, and treat promptly.
Lily Care Tips
Lilies are primarily outdoor plants and require specific conditions to thrive indoors. They need very bright light, well-draining soil, and careful watering to avoid bulb rot. Maintaining consistent humidity and temperature can also be challenging indoors. Due to their toxicity to pets, careful placement is crucial.
- Provide supplemental lighting if natural light is insufficient.
- Use a well-draining potting mix to prevent bulb rot.
- Monitor closely for pests and diseases.
- Allow the soil to dry slightly between waterings.
- Provide a cool, dormant period in the winter by reducing watering and keeping the plant in a cooler location.
⚠️ Common Problems & Solutions — Plant Care Comparison
Cup and Saucer Vine
Lily
❓ Frequently Asked Questions — Comparing These Plants
Cup and Saucer Vine
What are the light requirements for Cup and Saucer Vine?
Cup and Saucer Vine requires ample sunlight to thrive and produce abundant blooms. Aim for at least 6 hours of direct sunlight per day. An east- or south-facing window is ideal for indoor cultivation. Insufficient light can lead to leggy growth, reduced flowering, and pale foliage.
How do I care for Cup and Saucer Vine?
Cup and Saucer Vine thrives in well-draining soil and requires regular watering, especially during the growing season. Provide a sturdy support structure, such as a trellis or fence, for the vine to climb. Plant in a location that receives at least 6 hours of sunlight per day, but protect from intense afternoon heat.
How do I propagate Cup and Saucer Vine?
Cup and Saucer Vine can be easily propagated from stem cuttings or by layering. For stem cuttings, take a 4-6 inch cutting from a healthy vine. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cutting in moist potting mix and cover with a plastic bag to maintain humidity. Keep in a warm, bright location until roots develop.
Lily
What are the light requirements for Lily?
Lilies require bright, indirect light to thrive and produce abundant blooms. Insufficient light can lead to weak stems, pale foliage, and a lack of flowering. An east- or west-facing window is ideal, providing several hours of bright light without direct sunlight, which can scorch the leaves. If natural light is limited, supplement with grow lights. Rotate the pot regularly to ensure even light exposure on all sides of the plant. Avoid placing lilies in dark corners or areas with low light. The duration of light exposure is also crucial; aim for at least six hours of bright light daily during the growing season.
How do I care for Lily?
Lilies thrive with bright, indirect light, ideally near an east- or west-facing window. Water thoroughly when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Maintain moderate humidity levels, especially for indoor lilies. Fertilize regularly during the growing season (spring and summer) with a balanced liquid fertilizer, diluted to half strength, to promote abundant blooms. After flowering, allow the foliage to die back naturally, then cut back the stem to soil level. Repot annually in spring using well-draining potting mix. Protect from extreme temperatures and drafts. Monitor for pests like aphids and treat promptly. With proper care, your lilies will reward you with stunning blooms year after year. Remember to choose the right type of lily for your indoor environment, as some varieties are better suited for pots than others.
How do I propagate Lily?
Lilies can be propagated through bulb division, stem cuttings, and keiki (small bulbets that form along the stem).
Last updated: April 20, 2026 — Plant care data reviewed and verified by our editorial team.