Caladium vs Purple Fountain Grass Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Caladium
Caladium × hortulanum
Caladiums are tuberous perennials prized for their vibrant, often multicolored foliage. They are not naturally indoor plants, but are often grown as such. Their large, heart-shaped leaves come in various combinations of red, pink, white, and green. Caladiums are grown for their ornamental foliage, providing a splash of color and tropical flair. They typically go dormant in the cooler months, losing their leaves and requiring a period of rest. They are best suited for warm, humid environments.
Purple Fountain Grass
Pennisetum setaceum 'Rubrum'
Purple Fountain Grass is a striking ornamental grass prized for its arching, burgundy-purple foliage and bottlebrush-like flower plumes. It typically grows in a mounded form, reaching several feet in height and width. While technically a perennial in warmer climates, it is often grown as an annual in cooler regions due to its sensitivity to frost. It is primarily an outdoor plant, grown for its dramatic texture and color in gardens and landscapes. People grow it for its ornamental value, adding movement and visual interest to borders, containers, and mass plantings.
Quick Plant Comparison
| Feature | Caladium | Purple Fountain Grass |
|---|---|---|
| Light | Bright, indirect light. Avoid direct sunlight, which can scorch the leaves. | Full sun (at least 6 hours of direct sunlight per day) |
| Watering | Every 3-7 days during the growing season, depending on humidity and temperature. Less frequently during dormancy. | Every 7-10 days, depending on weather and soil drainage |
| Humidity | 60-80% | 20-50% |
| Temperature | 21-27°C | 18-30°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate | Moderate |
| Max Height | 30-60 cm (indoors) | Outdoor: 0.6-1.5 meters. Indoor (unlikely to thrive): 0.3-0.6 meters |
| Pet Safety | ❌ Toxic To Pets | ✅ Safe |
| Soil | Well-draining, slightly acidic potting mix rich in organic matter. A mix of peat moss, perlite, and vermiculite is suitable. | Well-draining soil, such as a sandy loam or a potting mix amended with perlite |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 15 minutes weekly | 15 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Caladium
| Scientific Name | Caladium × hortulanum |
|---|---|
| Family | Araceae |
| Native To | South America, specifically the Amazon basin |
| Also Known As | Caladium, Angel Wings, Elephant Ears, Heart of Jesus |
| Leaves | The leaves are large, heart-shaped, and papery in texture. They come in a wide range of colors and patterns, including combinations of red, pink, white, green, and bronze. Some varieties have prominent veins, while others have speckled or blotched patterns. Leaf size can vary depending on the cultivar, but they typically range from 15-30 cm in length. |
| Flowers | Caladiums can flower indoors, but the flowers are insignificant compared to the foliage. They produce a spadix and spathe, similar to other members of the Araceae family. The flowers are typically removed to encourage more foliage growth. |
Purple Fountain Grass
| Scientific Name | Pennisetum setaceum 'Rubrum' |
|---|---|
| Family | Poaceae |
| Native To | Hybrid cultivar; species native to Africa, Southwest Asia |
| Also Known As | Purple Fountain Grass, Red Fountain Grass |
| Leaves | The leaves are long, narrow, and arching, with a deep burgundy-purple color. They have a fine texture and create a graceful, flowing appearance. |
| Flowers | It produces bottlebrush-like flower plumes that are initially a deep burgundy-purple, fading to a tan color as they mature. Flowering typically occurs in summer and fall. It is unlikely to flower indoors. |
📏 Size & Growth — Plant Comparison
Caladium
Purple Fountain Grass
🌱 Propagation — Comparing Plant Growth
Caladium
Methods: Tuber division
Difficulty: Moderate
Tips: Divide tubers in early spring before planting. Ensure each division has at least one eye (bud). Allow the cut surfaces to callous over for a day or two before planting in well-draining soil.
Purple Fountain Grass
Methods: Seed, Division
Difficulty: Moderate
Tips: Divide clumps in spring or early summer. Sow seeds indoors 6-8 weeks before the last frost.
✨ Benefits & Features — Comparing Plant Value
Caladium
Caladiums are known for their stunning foliage colors and patterns, which vary widely among cultivars. Each leaf is like a living work of art. They are tuberous perennials, meaning they have a dormant period each year.
- ✓ Adds vibrant color and visual interest to indoor spaces.
- ✓ Creates a tropical ambiance.
- ✓ Can be a rewarding challenge for experienced plant growers.
- ✓ Offers a unique foliage display.
- ✓ Provides a connection to nature indoors.
- ⚠️ Toxic to pets
Purple Fountain Grass
Its deep purple foliage and graceful, arching habit make it a standout in any garden. The bottlebrush-like flower plumes add further visual interest and movement.
- ✓ Adds visual interest and texture to the garden
- ✓ Attracts birds
- ✓ Drought tolerant
- ✓ Deer resistant
- ✓ Provides movement in the landscape
- 🐾 Pet Safe
📅 Maintenance Schedule — Plant Care Comparison
Caladium
Purple Fountain Grass
🌞 Light Requirements
Caladium
Bright, indirect light. Avoid direct sunlight, which can scorch the leaves.
Low light tolerant: ❌ No
Purple Fountain Grass
Full sun (at least 6 hours of direct sunlight per day)
Low light tolerant: ❌ No
💧 Watering Needs
Caladium
Keep the soil consistently moist, but not soggy, during the growing season. Allow the top inch of soil to dry out slightly between waterings. Reduce watering during dormancy. Overwatering can lead to tuber rot, while underwatering can cause the leaves to droop and brown.
Purple Fountain Grass
Water deeply when the top inch of soil feels dry to the touch. Avoid overwatering, which can lead to root rot. Signs of underwatering include drooping or browning leaves. Signs of overwatering include yellowing leaves and soggy soil.
🌡️ Temperature & Humidity
Caladium
Temperature: 21-27°C
Humidity: 60-80%
Purple Fountain Grass
Temperature: 18-30°C
Humidity: 20-50%
🤔 Which Plant Is Right For You?
Caladium
Caladium × hortulanumExperienced plant enthusiasts who can provide the warm, humid environment and specific care that Caladiums need.
✅ Choose This Plant If...
- You want a plant with incredibly vibrant and colorful foliage.
- You are experienced with tropical plants and can provide high humidity.
- You enjoy the challenge of managing a plant's dormancy period.
- You want a plant that can be grown outdoors in the summer and brought indoors for the winter.
- You have a bright, indirect light location that can accommodate a plant with specific light needs.
❌ Skip This Plant If...
- You are a beginner plant owner.
- You cannot provide high humidity levels.
- You have pets that might ingest the plant.
Purple Fountain Grass
Pennisetum setaceum 'Rubrum'Gardeners looking for a dramatic ornamental grass to add color and texture to their landscape.
✅ Choose This Plant If...
- You want a striking focal point in your garden.
- You need a drought-tolerant plant for a sunny location.
- You desire a plant with beautiful purple foliage and plumes.
- You want to attract birds to your garden.
- You need a deer-resistant plant.
❌ Skip This Plant If...
- You live in a cold climate and don't want to treat it as an annual.
- You don't have a sunny location.
- You are looking for a low-maintenance indoor plant.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Both plants have similar basic care requirements but differ in appearance and specific needs. Compare plants carefully to find the best fit for your space.
💡 Pro Tips For Comparing These Plants
Caladium Care Tips
Caladiums are challenging to grow indoors due to their high humidity and light requirements. They need consistent moisture and warmth. They also require a dormancy period, which can be tricky to manage. Providing adequate humidity is crucial for their success indoors.
- Provide consistent moisture during the growing season, but avoid overwatering to prevent tuber rot.
- Increase humidity by using a humidifier, pebble tray, or grouping plants together.
- Fertilize regularly during the growing season with a balanced liquid fertilizer.
- Allow the plant to go dormant in the winter by gradually reducing watering and storing the tubers in a cool, dark place.
- Repot annually in the spring before new growth emerges.
Purple Fountain Grass Care Tips
Purple Fountain Grass is primarily an outdoor plant and will struggle indoors due to its high light requirements. It needs full sun and well-draining soil. While it can be grown in containers, it requires regular watering and fertilization. Overwintering indoors is possible in colder climates, but the plant may not thrive.
- Plant in well-draining soil in a sunny location.
- Water deeply but infrequently, allowing the soil to dry out between waterings.
- Fertilize in spring with a balanced slow-release fertilizer.
- Cut back foliage in late fall or early spring.
- Protect from frost in colder climates.
⚠️ Common Problems & Solutions — Plant Care Comparison
Caladium
Purple Fountain Grass
❓ Frequently Asked Questions — Comparing These Plants
Caladium
What are the light requirements for Caladium?
Caladiums thrive in bright, indirect light. Direct sunlight can easily scorch their delicate leaves, leading to unsightly brown spots. An east-facing window is often ideal, providing gentle morning sun without the intensity of the afternoon rays. A north-facing window can also work, but you may need to supplement with artificial light if the plant isn’t receiving enough natural light. If placing your Caladium near a south or west-facing window, use a sheer curtain to filter the sunlight. Watch for signs of inadequate light, such as leggy growth or faded colors. Rotate your Caladium regularly to ensure even light exposure on all sides.
How do I care for Caladium?
Caladiums require bright, indirect light to thrive; direct sunlight can scorch their delicate leaves. Maintain consistent moisture in the soil, watering when the top inch feels dry to the touch. Ensure proper drainage to prevent root rot. Caladiums prefer high humidity levels, so consider using a humidifier or placing them on a pebble tray. Fertilize regularly during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. During dormancy (fall and winter), reduce watering and stop fertilizing. Keep Caladiums in a warm environment, ideally between 70-85°F (21-29°C). Protect them from drafts and sudden temperature changes. Repot annually in spring using a well-draining potting mix. Monitor for pests such as spider mites and aphids and treat promptly. With proper care, Caladiums will reward you with beautiful, vibrant foliage.
How do I propagate Caladium?
Caladiums can be propagated through tuber division. During dormancy (fall/winter), carefully dig up the tubers. Divide the tubers, ensuring each section has at least one eye (bud). Allow the cut surfaces to callus over for a few days. Plant the tubers in well-draining potting mix, burying them about 2 inches deep. Water lightly and keep the soil consistently moist. Place the pots in a warm location with bright, indirect light. New growth should emerge in a few weeks. Stem cuttings are not typically successful for Caladiums. Air layering is also not a common propagation method.
Purple Fountain Grass
What are the light requirements for Purple Fountain Grass?
Purple Fountain Grass requires at least 6-8 hours of direct sunlight per day to thrive and develop its characteristic vibrant purple foliage and abundant flower plumes. Insufficient sunlight can lead to leggy growth, faded color, and reduced flowering. When planting, choose a location that receives full sun throughout the day. If growing in containers, rotate the plant regularly to ensure even sun exposure on all sides. In hotter climates, some afternoon shade may be beneficial to prevent scorching, but avoid placing it in deep shade, which will hinder its growth. Supplemental lighting may be necessary if grown indoors during winter months.
How do I care for Purple Fountain Grass?
Purple Fountain Grass thrives in full sun and well-draining soil. Water thoroughly when the top inch of soil feels dry, but avoid overwatering, which can lead to root rot. Fertilize monthly during the growing season (spring and summer) with a balanced fertilizer to promote healthy growth and vibrant blooms. Prune away dead or damaged foliage in late winter or early spring before new growth emerges. In colder climates, treat it as an annual or bring it indoors during the winter. Provide adequate air circulation to prevent fungal diseases. Regularly inspect for pests like aphids or spider mites, and treat accordingly. Avoid planting in overly compacted or poorly draining soil. Mulching around the base can help retain moisture and suppress weeds. Protect from strong winds.
How do I propagate Purple Fountain Grass?
Purple Fountain Grass can be propagated by division. In early spring, carefully dig up the plant and divide the root ball into smaller clumps, ensuring each clump has healthy roots and foliage. Replant the divisions in well-draining soil and water thoroughly. Keep the soil consistently moist until the new plants are established. Division is the most reliable method. Seed propagation is possible but can be inconsistent in producing plants true to the ‘Rubrum’ cultivar. Stem cuttings are not typically used for propagating this grass. Keikis are not applicable as this plant doesn’t produce them. Ensure good air circulation to prevent fungal diseases after dividing.
Last updated: April 20, 2026 — Plant care data reviewed and verified by our editorial team.