Fern Pine vs Purple Fountain Grass Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Fern Pine
Podocarpus macrophyllus
Podocarpus macrophyllus, commonly called Fern Pine or Buddhist Pine, is an evergreen shrub or small tree. In its native habitat, it can reach heights of 50-70 feet, but when cultivated as an ornamental, it typically grows to a more manageable size. The plant features narrow, dark green, linear leaves that resemble those of a fern, hence the common name. It is primarily grown outdoors as a landscape plant for hedges, screens, or specimen trees. While sometimes kept indoors, it requires very bright light and consistent care to thrive.
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 | Fern Pine | Purple Fountain Grass |
|---|---|---|
| Light | Full sun to partial shade outdoors; very bright indirect light indoors | Full sun (at least 6 hours of direct sunlight per day) |
| Watering | Every 7-14 days, depending on environmental conditions and pot size | Every 7-10 days, depending on weather and soil drainage |
| Humidity | 40-60% | 20-50% |
| Temperature | 15-24°C | 18-30°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate | Moderate |
| Max Height | 1-2 meters indoors (much larger outdoors) | Outdoor: 0.6-1.5 meters. Indoor (unlikely to thrive): 0.3-0.6 meters |
| Pet Safety | ❌ Toxic To Pets | ✅ Safe |
| Soil | Well-draining potting mix | Well-draining soil, such as a sandy loam or a potting mix amended with perlite |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30 minutes weekly | 15 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Fern Pine
| Scientific Name | Podocarpus macrophyllus |
|---|---|
| Family | Podocarpaceae |
| Native To | Japan and China |
| Also Known As | Fern Pine, Buddhist Pine, Yew Pine, Kusamaki |
| Leaves | Narrow, linear leaves, typically 5-12 cm long and 0.5-1 cm wide. Dark green in color with a slightly leathery texture. Arranged spirally along the branches. |
| Flowers | Rarely flowers indoors. Outdoors, it produces inconspicuous, cone-like structures. |
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
Fern Pine
Purple Fountain Grass
🌱 Propagation — Comparing Plant Growth
Fern Pine
Methods: Stem cuttings, Seed
Difficulty: Moderate
Tips: Take semi-hardwood cuttings in late summer. Use rooting hormone and provide warmth and humidity.
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
Fern Pine
The Fern Pine's narrow, linear leaves give it a distinctive appearance, resembling a fern more than a typical pine. Its adaptability to pruning makes it suitable for shaping and bonsai.
- ✓ Adds a touch of elegance to indoor spaces.
- ✓ Provides a calming, natural element.
- ✓ Can be pruned into interesting shapes.
- ✓ Offers a unique foliage texture.
- ✓ May improve indoor air quality slightly.
- ⚠️ 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
Fern Pine
Purple Fountain Grass
🌞 Light Requirements
Fern Pine
Full sun to partial shade outdoors; very bright indirect light indoors
Low light tolerant: ❌ No
Purple Fountain Grass
Full sun (at least 6 hours of direct sunlight per day)
Low light tolerant: ❌ No
💧 Watering Needs
Fern Pine
Water thoroughly when the top inch of soil is dry. Overwatering can lead to root rot, while underwatering can cause leaf drop. Ensure good drainage.
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
Fern Pine
Temperature: 15-24°C
Humidity: 40-60%
Purple Fountain Grass
Temperature: 18-30°C
Humidity: 20-50%
🤔 Which Plant Is Right For You?
Fern Pine
Podocarpus macrophyllusExperienced plant enthusiasts who can provide the specific conditions this plant needs.
✅ Choose This Plant If...
- You want an elegant, evergreen plant with a unique texture.
- You have a very bright, sunny indoor space.
- You enjoy a challenge and are willing to provide specific care.
- You appreciate the symbolism associated with this plant in some cultures.
- You want a plant that can be pruned into various shapes.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You cannot provide very bright light indoors.
- You tend to overwater plants.
- You are a beginner plant owner.
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
Fern Pine needs full sun to partial shade outdoors; very bright indirect light indoors, while Purple Fountain Grass prefers full sun (at least 6 hours of direct sunlight per day).
💡 Pro Tips For Comparing These Plants
Fern Pine Care Tips
Fern Pine is primarily an outdoor plant and can be challenging to grow indoors. It requires very bright light, well-draining soil, and careful watering to prevent root rot. Maintaining adequate humidity is also important.
- Provide consistent moisture without overwatering.
- Ensure excellent drainage to prevent root rot.
- Wipe leaves regularly to remove dust and improve light absorption.
- Rotate the plant regularly to ensure even growth.
- Consider using a humidifier to increase humidity, especially in winter.
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
Fern Pine
Purple Fountain Grass
❓ Frequently Asked Questions — Comparing These Plants
Fern Pine
What are the light requirements for Fern Pine?
Fern Pine prefers bright, indirect light to thrive indoors. Direct sunlight can scorch its delicate foliage, so it’s best to avoid placing it in a south-facing window unless filtered by a sheer curtain. An east- or west-facing window that provides ample light without direct exposure is ideal.
How do I care for Fern Pine?
Fern Pine thrives indoors with bright, indirect light; avoid direct sunlight to prevent scorching. Water thoroughly when the top inch of soil feels dry, ensuring proper drainage to prevent root rot. Maintain moderate humidity levels, especially during dry winter months, by misting the foliage regularly or using a humidifier.
How do I propagate Fern Pine?
Fern Pine can be propagated through stem cuttings or air layering. For stem cuttings, take a 4-6 inch cutting from a healthy stem, removing the lower leaves. Dip the cut end in rooting hormone and plant it in a well-draining potting mix. Keep the soil moist and provide high humidity by covering the cutting with a plastic bag or dome. Roots should develop in 6-8 weeks.
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: May 9, 2026 — Plant care data reviewed and verified by our editorial team.