Fountain Grass vs Mastic Tree 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.
Mastic Tree
Pistacia lentiscus
Pistacia lentiscus, or Mastic Tree, is an evergreen shrub or small tree native to the Mediterranean. It typically grows to 1-8 meters tall. It is known for producing mastic, a resin used in chewing gum, liquors, and varnishes. The plant has a dense, bushy habit with pinnate leaves. While it can be grown in containers, it is primarily an outdoor plant, thriving in full sun and well-drained soil. People grow it for its ornamental value, drought tolerance, and the aromatic resin it produces.
Quick Plant Comparison
| Feature | Fountain Grass | Mastic Tree |
|---|---|---|
| Light | Full sun (at least 6-8 hours of direct sunlight daily) | Full sun to partial shade |
| Watering | Every 1-2 weeks, depending on weather and soil drainage | Every 1-2 weeks, depending on environmental conditions |
| Humidity | 30-50% | 40-60% |
| Temperature | 18-30°C | 15-25°C |
| Care Level | Expert | Expert |
| Growth Rate | Fast | Slow |
| Max Height | 0.6-1.5 meters (outdoor); significantly smaller in containers indoors (if attempted) | 1-2 meters (indoors, in containers) |
| Pet Safety | ✅ Safe | ✅ Safe |
| Soil | Well-draining soil, such as a sandy loam or a general-purpose potting mix amended with perlite. | Well-drained sandy or loamy soil |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 15 minutes monthly | 30 minutes weekly (primarily watering and checking for pests) |
🔬 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. |
Mastic Tree
| Scientific Name | Pistacia lentiscus |
|---|---|
| Family | Anacardiaceae |
| Native To | Mediterranean region |
| Also Known As | Mastic Tree, Lentisk |
| Leaves | The leaves are pinnately compound, consisting of 4-10 pairs of leaflets. The leaflets are small, oval-shaped, and leathery in texture. They are a glossy dark green color and emit a resinous aroma when crushed. |
| Flowers | The Mastic Tree produces small, inconspicuous flowers in spring. Male and female flowers are borne on separate plants (dioecious). Flowering is rare indoors. |
📏 Size & Growth — Plant Comparison
Fountain Grass
Mastic Tree
🌱 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.
Mastic Tree
Methods: Seed, stem cuttings, layering
Difficulty: Moderate
Tips: Take semi-hardwood cuttings in late summer. Use rooting hormone and provide bottom heat for best results. Seeds require scarification and stratification before sowing.
✨ 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
Mastic Tree
The Mastic Tree is unique for its production of mastic resin, a natural gum with a distinctive flavor and aroma. This resin has been used for centuries in traditional medicine, cooking, and cosmetics. Its drought tolerance and evergreen foliage also make it a valuable ornamental plant in Mediterranean climates.
- ✓ Drought tolerance makes it water-wise.
- ✓ Evergreen foliage provides year-round visual interest.
- ✓ Aromatic leaves release a pleasant scent.
- ✓ Mastic resin has potential medicinal properties.
- ✓ Provides habitat for local wildlife in outdoor settings.
- 🐾 Pet Safe
📅 Maintenance Schedule — Plant Care Comparison
Fountain Grass
Mastic Tree
🌞 Light Requirements
Fountain Grass
Full sun (at least 6-8 hours of direct sunlight daily)
Low light tolerant: ❌ No
Mastic Tree
Full sun to partial shade
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.
Mastic Tree
Water deeply when the top inch of soil is dry. Avoid overwatering, which can lead to root rot. Allow the soil to dry out slightly between waterings. Signs of overwatering include yellowing leaves and a musty smell. Underwatering is indicated by wilting and dry, crispy leaves.
🌡️ Temperature & Humidity
Fountain Grass
Temperature: 18-30°C
Humidity: 30-50%
Mastic Tree
Temperature: 15-25°C
Humidity: 40-60%
🤔 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.
Mastic Tree
Pistacia lentiscusGardeners in Mediterranean climates looking for a drought-tolerant ornamental shrub.
✅ Choose This Plant If...
- You live in a Mediterranean climate and want a drought-tolerant shrub.
- You are interested in harvesting mastic resin (though indoor growing makes this difficult).
- You want an evergreen plant with aromatic foliage.
- You have a sunny outdoor space with well-draining soil.
- You are an experienced gardener willing to provide the specific care this plant needs.
❌ Skip This Plant If...
- You live in a cold climate with harsh winters.
- You lack a sunny outdoor space.
- You are a beginner gardener.
- You are looking for a low-maintenance indoor plant.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Fountain Grass needs full sun (at least 6-8 hours of direct sunlight daily), while Mastic Tree prefers full sun to partial shade.
Fountain Grass has fast growth, while Mastic Tree grows slow.
💡 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.
Mastic Tree Care Tips
Mastic trees are best suited for outdoor environments. Growing them indoors is challenging due to their high light requirements and need for well-drained soil. They require careful watering and fertilization to thrive in containers. Providing adequate ventilation is also crucial.
- Ensure excellent drainage to prevent root rot.
- Provide full sun for optimal growth and resin production.
- Protect from frost in colder climates.
- Prune regularly to maintain shape and encourage bushier growth.
- Fertilize sparingly to avoid nutrient imbalances.
⚠️ Common Problems & Solutions — Plant Care Comparison
Fountain Grass
Mastic Tree
❓ 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.
Mastic Tree
What are the light requirements for Mastic Tree?
Mastic Trees thrive in bright, indirect light. Insufficient light can lead to leggy growth and reduced foliage density. A location near a south- or west-facing window, filtered by a sheer curtain, provides the ideal light conditions. If you don’t have access to adequate natural light, consider supplementing with a grow light. Rotate your plant regularly to ensure even light exposure on all sides. Avoid placing your Mastic Tree in direct sunlight, especially during the hottest part of the day, as this can scorch the leaves.
How do I care for Mastic Tree?
To ensure your Mastic Tree thrives indoors, provide it with bright, indirect light. A south- or west-facing window is ideal. Water thoroughly when the top inch of soil feels dry to the touch, allowing excess water to drain away. Avoid overwatering, as this can lead to root rot.
How do I propagate Mastic Tree?
Mastic 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. Cover with a plastic bag to maintain humidity. Roots should develop in 4-6 weeks.
Last updated: May 15, 2026 — Plant care data reviewed and verified by our editorial team.