Golden Dewdrop vs Purple Fountain Grass Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Golden Dewdrop
Duranta erecta
Golden Dewdrop (Duranta erecta) is a fast-growing shrub or small tree, typically grown outdoors in warm climates. It features vibrant green foliage and produces clusters of small, tubular, lavender or blue flowers that are followed by showy golden-yellow berries, hence the name. While it can be grown in containers, it's primarily an outdoor plant and may struggle indoors due to its high light requirements and potential size. People grow it for its attractive flowers, berries, and ease of care in suitable climates. It is often used in hedges, borders, or as a specimen plant.
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 | Golden Dewdrop | Purple Fountain Grass |
|---|---|---|
| Light | Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal flowering and berry production. | Full sun (at least 6 hours of direct sunlight per day) |
| Watering | Every 3-7 days outdoors, depending on weather and soil drainage. Less frequently indoors if attempted. | Every 7-10 days, depending on weather and soil drainage |
| Humidity | 40-60% | 20-50% |
| Temperature | 18-27°C | 18-30°C |
| Care Level | Expert | Expert |
| Growth Rate | Fast | Moderate |
| Max Height | Up to 1-3 meters indoors (highly variable and difficult to achieve). Outdoors, can reach 5 meters or more. | Outdoor: 0.6-1.5 meters. Indoor (unlikely to thrive): 0.3-0.6 meters |
| Pet Safety | ❌ Toxic To Pets | ✅ Safe |
| Soil | Well-draining soil, such as a mix of potting soil, perlite, and sand. | Well-draining soil, such as a sandy loam or a potting mix amended with perlite |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30 minutes weekly (including watering, pruning, and pest control) | 15 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Golden Dewdrop
| Scientific Name | Duranta erecta |
|---|---|
| Family | Verbenaceae |
| Native To | Native to the Americas, from Florida to Brazil and Argentina |
| Also Known As | Golden Dewdrop, Skyflower, Pigeon Berry |
| Leaves | The leaves are ovate to elliptic, about 2-8 cm long, with a glossy green color. They are oppositely arranged on the stems and have a slightly serrated margin. The texture is smooth and slightly leathery. |
| Flowers | It produces clusters of small, tubular flowers in shades of lavender, blue, or white. The flowers are fragrant and attract butterflies and bees. Flowering occurs primarily in spring and summer. It is unlikely to flower indoors. |
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
Golden Dewdrop
Purple Fountain Grass
🌱 Propagation — Comparing Plant Growth
Golden Dewdrop
Methods: Stem cuttings, Seed
Difficulty: Easy
Tips: Take stem cuttings in spring or summer. Dip the cut end in rooting hormone and plant in well-draining soil. Keep the soil moist and provide warmth and humidity. Seeds can be sown in spring after soaking them in water for 24 hours.
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
Golden Dewdrop
The combination of lavender/blue flowers and golden-yellow berries is unique. It's a fast-growing shrub that can quickly fill in spaces in the garden. The berries are attractive to birds, adding to its ecological value.
- ✓ Attracts pollinators to the garden.
- ✓ Provides visual interest with flowers and berries.
- ✓ Can be used for hedging and screening.
- ✓ Provides a habitat for birds.
- ✓ Adds a tropical feel to the landscape.
- ⚠️ 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
Golden Dewdrop
Purple Fountain Grass
🌞 Light Requirements
Golden Dewdrop
Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal flowering and berry production.
Low light tolerant: ❌ No
Purple Fountain Grass
Full sun (at least 6 hours of direct sunlight per day)
Low light tolerant: ❌ No
💧 Watering Needs
Golden Dewdrop
Water thoroughly when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. In containers, ensure good drainage. During the growing season, water more frequently. Reduce watering in winter.
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
Golden Dewdrop
Temperature: 18-27°C
Humidity: 40-60%
Purple Fountain Grass
Temperature: 18-30°C
Humidity: 20-50%
🤔 Which Plant Is Right For You?
Golden Dewdrop
Duranta erectaGardeners in warm climates looking for a flowering shrub to attract pollinators.
✅ Choose This Plant If...
- You live in a warm climate with plenty of sunshine.
- You want to attract butterflies and birds to your garden.
- You are looking for a fast-growing shrub for hedging or borders.
- You enjoy showy flowers and golden berries.
- You are experienced with pruning and shaping shrubs.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You live in a cold climate with limited sunlight.
- You are looking for a low-maintenance indoor 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
Golden Dewdrop has fast growth, while Purple Fountain Grass grows moderate.
💡 Pro Tips For Comparing These Plants
Golden Dewdrop Care Tips
Golden Dewdrop is primarily an outdoor plant and requires full sun to thrive. Growing it indoors is challenging due to its high light needs and potential size. It is toxic to pets, so caution is needed. Requires regular pruning to maintain shape. Best suited for outdoor gardens in warm climates.
- Provide full sun for optimal flowering and berry production.
- Water deeply but infrequently, allowing the soil to dry slightly between waterings.
- Prune regularly to maintain shape and size.
- Fertilize during the growing season to promote healthy growth.
- Protect from frost in colder climates.
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
Golden Dewdrop
Purple Fountain Grass
❓ Frequently Asked Questions — Comparing These Plants
Golden Dewdrop
What are the light requirements for Golden Dewdrop?
Golden Dewdrop thrives in bright, indirect sunlight. It needs at least 6 hours of sunlight daily to produce abundant flowers and berries. An east-facing or west-facing window is ideal, providing ample morning or afternoon sun without the harsh intensity of midday sun. If grown indoors, rotate the plant regularly to ensure even light exposure on all sides. Insufficient light can lead to leggy growth, reduced flowering, and pale leaves. During winter months, when sunlight is limited, consider supplementing with a grow light to maintain healthy growth and encourage blooming.
How do I care for Golden Dewdrop?
Golden Dewdrop requires bright, indirect sunlight for at least 6 hours a day. Water thoroughly when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Fertilize monthly during the growing season (spring and summer) with a balanced, water-soluble fertilizer to encourage blooming and berry production. Prune regularly to maintain shape and promote bushier growth, ideally after flowering. Maintain a moderate humidity level, especially indoors, by misting or using a humidifier. Repot every 1-2 years as needed, using a well-draining potting mix. Protect from frost as it is not cold-hardy. Monitor for pests like aphids and spider mites, and treat promptly with insecticidal soap.
How do I propagate Golden Dewdrop?
Golden Dewdrop can be propagated through stem cuttings. Take 4-6 inch stem cuttings from new growth, removing the lower leaves. Dip the cut end in rooting hormone and plant in a well-draining potting mix. Keep the soil moist and provide bright, indirect light. Rooting typically occurs in 4-6 weeks. Division is possible for established plants. Carefully separate the root ball into smaller sections, ensuring each section has healthy roots and foliage. Replant each section in its own pot. Keiki propagation is not applicable to Golden Dewdrop.
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 4, 2026 — Plant care data reviewed and verified by our editorial team.