Fountain Grass vs Ornamental Plum Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Fountain Grass
Pennisetum setaceum
Fountain Grass is a perennial grass known for its graceful, arching foliage and bottlebrush-like flower plumes. Typically grown as an ornamental grass, it adds texture and movement to landscapes. It forms dense clumps of slender, linear leaves that can range in color from green to reddish-purple, depending on the cultivar. The feathery flower plumes emerge in summer and persist into fall, adding visual interest. While primarily an outdoor plant, it is sometimes grown in containers. It is valued for its drought tolerance and low maintenance requirements in suitable climates.
Ornamental Plum
Prunus cerasifera
The ornamental plum (Prunus cerasifera) is a deciduous tree known for its profuse display of pink or white flowers in early spring, followed by attractive purple or bronze-colored foliage. It typically grows to a height of 15-25 feet. While primarily an outdoor tree, it's sometimes forced into bloom indoors, but it's not naturally suited for indoor life. People grow it for its ornamental value, adding color and visual interest to landscapes, especially in early spring when other trees are still dormant. It's a popular choice for street trees and garden focal points.
Quick Plant Comparison
| Feature | Fountain Grass | Ornamental Plum |
|---|---|---|
| Light | Full sun (at least 6-8 hours of direct sunlight daily) | Full sun (at least 6 hours of direct sunlight per day) |
| Watering | Every 1-2 weeks, depending on weather and soil drainage | Once or twice a week during the first year, then as needed during dry periods. |
| Humidity | 30-50% | 30-50% |
| Temperature | 18-30°C | 10-27°C |
| Care Level | Expert | Expert |
| Growth Rate | Fast | Moderate |
| Max Height | 0.6-1.5 meters (outdoor); significantly smaller in containers indoors (if attempted) | N/A (outdoor tree, not suitable for indoor growing) |
| Pet Safety | ✅ Safe | ❌ Toxic To Pets |
| Soil | Well-draining soil, such as a sandy loam or a general-purpose potting mix amended with perlite. | Well-drained soil, adaptable to various soil types including clay, loam, and sand. |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 15 minutes monthly | 30 minutes monthly (pruning, pest control, watering) |
🔬 Botanical Information — Comparing These Plants
Fountain Grass
| Scientific Name | Pennisetum setaceum |
|---|---|
| Family | Poaceae |
| Native To | Native to tropical Africa, Southwest Asia, and the Arabian Peninsula; naturalized in many other regions. |
| Also Known As | Fountain Grass, Crimson Fountain Grass, Purple Fountain Grass |
| Leaves | Slender, linear leaves that can range in color from green to reddish-purple, depending on the cultivar. The leaves are typically 30-90 cm long and 0.5-1 cm wide. |
| Flowers | Flowers are produced in bottlebrush-like plumes that can be pink, purple, or white. The plumes emerge in summer and persist into fall. It is very unlikely to flower indoors. |
Ornamental Plum
| Scientific Name | Prunus cerasifera |
|---|---|
| Family | Rosaceae |
| Native To | Southeast Europe and Western Asia |
| Also Known As | Cherry Plum, Myrobalan Plum, Flowering Plum, Purple-leaf Plum |
| Leaves | Alternate, simple leaves that are typically ovate or elliptical in shape. Leaf color ranges from deep purple to bronze-green, depending on the cultivar. Leaves are usually 2-3 inches long with serrated edges. |
| Flowers | Flowers profusely in early spring before the leaves emerge. Flowers are typically pink or white, about 1 inch in diameter, and have a delicate fragrance. Flowering is rare indoors. |
📏 Size & Growth — Plant Comparison
Fountain Grass
Ornamental Plum
🌱 Propagation — Comparing Plant Growth
Fountain Grass
Methods: Seed, Division
Difficulty: Easy
Tips: Divide established clumps in spring or fall. Sow seeds in spring after the last frost. Ensure good drainage and consistent moisture during germination.
Ornamental Plum
Methods: Seed, grafting, budding, and stem cuttings.
Difficulty: Moderate
Tips: For stem cuttings, take semi-hardwood cuttings in late summer. Use rooting hormone and keep the cuttings moist. Grafting and budding are more complex and usually done by professionals.
✨ Benefits & Features — Comparing Plant Value
Fountain Grass
Fountain Grass is known for its graceful, arching foliage and bottlebrush-like flower plumes. The flower plumes add visual interest and movement to landscapes. Its drought tolerance makes it a popular choice for xeriscaping.
- ✓ Adds visual interest to landscapes
- ✓ Provides habitat for birds and beneficial insects
- ✓ Drought-tolerant and low-maintenance
- ✓ Erosion control on slopes
- ✓ Can be used in cut flower arrangements
- 🐾 Pet Safe
Ornamental Plum
The ornamental plum is unique for its combination of early spring flowers and purple foliage. This provides a long season of visual interest in the landscape. The intensity of the purple color can vary depending on the cultivar and environmental conditions.
- ✓ Provides early spring color.
- ✓ Attracts pollinators.
- ✓ Offers visual interest with purple foliage.
- ✓ Relatively low-maintenance once established.
- ✓ Provides shade.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Fountain Grass
Ornamental Plum
🌞 Light Requirements
Fountain Grass
Full sun (at least 6-8 hours of direct sunlight daily)
Low light tolerant: ❌ No
Ornamental Plum
Full sun (at least 6 hours of direct sunlight per day)
Low light tolerant: ❌ No
💧 Watering Needs
Fountain Grass
Water deeply when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Allow the soil to dry out slightly between waterings. Signs of underwatering include drooping or browning leaves. Overwatering can cause yellowing leaves and a mushy base.
Ornamental Plum
Water deeply when planting and during dry spells, especially in the first few years. Established trees are relatively drought-tolerant. Overwatering can lead to root rot, indicated by yellowing leaves and a general decline in health. Underwatering will cause leaf drop and stunted growth.
🌡️ Temperature & Humidity
Fountain Grass
Temperature: 18-30°C
Humidity: 30-50%
Ornamental Plum
Temperature: 10-27°C
Humidity: 30-50%
🤔 Which Plant Is Right For You?
Fountain Grass
Pennisetum setaceumGardeners looking for a low-maintenance, ornamental grass to add texture and movement to their outdoor landscapes.
✅ Choose This Plant If...
- You want a drought-tolerant ornamental grass for your garden.
- You appreciate the graceful, arching foliage and feathery flower plumes.
- You are looking for a low-maintenance plant that adds texture and movement to your landscape.
- You live in a warm climate where it can thrive outdoors.
- You want to attract birds to your garden.
❌ Skip This Plant If...
- You live in a region where it is considered an invasive species.
- You do not have a sunny outdoor space.
- You are looking for a plant that thrives indoors.
Ornamental Plum
Prunus cerasiferaGardeners looking for a beautiful flowering tree with attractive foliage to add color to their landscape.
✅ Choose This Plant If...
- You want a tree with beautiful spring blossoms.
- You desire a tree with attractive purple foliage.
- You need a relatively low-maintenance tree once established.
- You want to attract pollinators to your garden.
- You have a sunny location in your yard.
❌ Skip This Plant If...
- You have limited space, as this is a large tree.
- You have pets that might ingest toxic plant parts.
- You live in a region with very poor soil drainage.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Fountain Grass needs full sun (at least 6-8 hours of direct sunlight daily), while Ornamental Plum prefers full sun (at least 6 hours of direct sunlight per day).
Fountain Grass has fast growth, while Ornamental Plum grows moderate.
💡 Pro Tips For Comparing These Plants
Fountain Grass Care Tips
Fountain Grass is primarily an outdoor plant that thrives in full sun and well-draining soil. Growing it indoors is challenging due to its high light requirements and potential size. It requires careful watering and fertilization. It can become invasive in some regions due to its prolific seed production.
- Plant in well-draining soil to prevent root rot.
- Provide full sun for optimal growth and flowering.
- Water deeply but infrequently, allowing the soil to dry out slightly between waterings.
- Cut back foliage in late winter or early spring to encourage new growth.
- Deadhead spent flower plumes to prevent unwanted seed dispersal.
Ornamental Plum Care Tips
Ornamental plums are primarily outdoor trees and are not suitable for indoor growing. Attempting to grow them indoors will likely result in a stressed and unhealthy plant due to insufficient light, humidity, and space. They require full sun and well-drained soil to thrive.
- Plant in well-drained soil to prevent root rot.
- Water deeply during dry spells, especially when young.
- Prune annually to maintain shape and remove deadwood.
- Monitor for pests and diseases and treat promptly.
- Fertilize in early spring to promote healthy growth.
⚠️ Common Problems & Solutions — Plant Care Comparison
Fountain Grass
Ornamental Plum
❓ Frequently Asked Questions — Comparing These Plants
Fountain Grass
What are the light requirements for Fountain Grass?
Fountain Grass requires a minimum of six hours of direct sunlight each day to thrive and produce abundant blooms. Insufficient light can lead to weak growth, fewer flowers, and a generally unhealthy appearance. When planting Fountain Grass, choose a location that receives full sun exposure throughout the day.
How do I care for Fountain Grass?
Fountain Grass thrives in full sun and well-drained soil. Water deeply but infrequently, allowing the soil to dry out slightly between waterings. Fertilize in spring with a balanced fertilizer to promote healthy growth and abundant blooms. Prune back dead foliage in late winter or early spring before new growth emerges.
How do I propagate Fountain Grass?
Fountain Grass is easily propagated by division. In early spring, carefully dig up the clump and divide it into smaller sections, ensuring each section has healthy roots and foliage. Replant the divisions in well-drained soil and water thoroughly. Stem cuttings are not a reliable method. Keikis do not naturally occur on Fountain Grass.
Ornamental Plum
What are the light requirements for Ornamental Plum?
Ornamental Plums require bright, indirect light to thrive indoors. Direct sunlight can scorch their leaves, while insufficient light can lead to leggy growth and faded foliage color. A location near an east- or west-facing window is ideal. If you only have a south-facing window, filter the light with a sheer curtain. Rotate the plant regularly to ensure all sides receive adequate light. If natural light is limited, supplement with a grow light. Observe the plant’s leaves; if they start to lose their vibrant color, it may indicate insufficient light. Adjust the plant’s location accordingly to maximize light exposure without causing leaf burn.
How do I care for Ornamental Plum?
Ornamental Plums thrive indoors with bright, indirect light. Water when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Maintain moderate humidity levels, especially during winter months. Fertilize monthly during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. Prune regularly to maintain shape and size, removing any dead or crossing branches. Repot every 2-3 years, or when the plant becomes root-bound, using a well-draining potting mix. Monitor for pests like spider mites and aphids, treating promptly with insecticidal soap. Provide stable temperatures between 60-75°F (15-24°C) and avoid drafts. Rotate the plant periodically for even growth. Ensure adequate airflow around the plant.
How do I propagate Ornamental Plum?
Ornamental Plums can be propagated via stem cuttings or air layering. For stem cuttings, take a 4-6 inch cutting from new growth in spring or summer. 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 to maintain humidity. Roots should develop in 4-6 weeks. For air layering, make a small incision on a stem and wrap it with moist sphagnum moss. Cover the moss with plastic wrap and secure it with tape. Keep the moss moist. Roots should develop in several weeks. Once rooted, cut the stem below the roots and pot it in a new container. Both methods require patience and consistent moisture.
Last updated: May 5, 2026 — Plant care data reviewed and verified by our editorial team.