Feather Grass vs Lysimachia Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Feather Grass
Stipa tenuissima
Stipa tenuissima, commonly known as Mexican Feather Grass, is a perennial bunchgrass prized for its delicate, airy appearance. It forms dense clumps of fine, thread-like green leaves that sway gracefully in the breeze. In summer, it produces feathery, silvery-green flower panicles that turn golden-tan as they mature. It is primarily an outdoor plant, grown for its ornamental value in gardens and landscapes, adding texture and movement. While visually appealing, it can become invasive in some regions.
Lysimachia
Lysimachia nummularia
Lysimachia nummularia, commonly known as Creeping Jenny or Moneywort, is a perennial ground cover characterized by its trailing stems and rounded, coin-like leaves. It typically grows to only a few inches in height but can spread extensively. While primarily an outdoor plant, it is sometimes grown in hanging baskets or containers indoors. People grow it for its attractive foliage and ability to quickly cover ground, creating a lush, green carpet. Its vibrant green or golden foliage adds visual interest to gardens and landscapes. It is not ideally suited for long-term indoor growth.
Quick Plant Comparison
| Feature | Feather Grass | Lysimachia |
|---|---|---|
| Light | Full sun (at least 6 hours of direct sunlight per day) | Full sun to partial shade outdoors. Indoors, requires very bright, direct light for several hours daily. |
| Watering | Every 1-2 weeks, depending on weather and soil drainage | Every 3-7 days, depending on light and temperature. |
| Humidity | 20-50% | 30-50% |
| Temperature | 15-27°C | 15-24°C |
| Care Level | Expert | Expert |
| Growth Rate | Fast | Fast |
| Max Height | 0.3-0.6 meters (outdoors) | 2-10 cm (indoors) |
| Pet Safety | ✅ Safe | ❌ Toxic To Pets |
| Soil | Well-draining soil, sandy or loamy soil is best | Well-draining potting mix or garden soil. |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 5 minutes weekly (mostly removing unwanted seedlings) | 15 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Feather Grass
| Scientific Name | Stipa tenuissima |
|---|---|
| Family | Poaceae |
| Native To | Southwestern United States, Mexico, Argentina |
| Also Known As | Mexican Feather Grass, Pony Tails Grass, Finestem Needlegrass |
| Leaves | The leaves are very fine, thread-like, and green, typically 30-60 cm long. They are soft to the touch and sway gracefully in the breeze. |
| Flowers | It produces feathery, silvery-green flower panicles in summer that turn golden-tan as they mature. Flowering is unlikely indoors. |
Lysimachia
| Scientific Name | Lysimachia nummularia |
|---|---|
| Family | Primulaceae |
| Native To | Europe |
| Also Known As | Creeping Jenny, Moneywort, Twopenny Grass |
| Leaves | Rounded, coin-like leaves that are typically bright green, but some varieties have golden or chartreuse foliage. Leaves are small, usually less than an inch in diameter, and have a smooth texture. |
| Flowers | It may produce small, yellow, cup-shaped flowers in the summer, but flowering is rare indoors. |
📏 Size & Growth — Plant Comparison
Feather Grass
Lysimachia
🌱 Propagation — Comparing Plant Growth
Feather Grass
Methods: Seed, Division
Difficulty: Easy
Tips: Sow seeds in spring or divide established clumps in early spring or fall. For division, carefully separate the clump into smaller sections, ensuring each section has healthy roots and shoots. Plant immediately in well-draining soil.
Lysimachia
Methods: Stem cuttings, Division
Difficulty: Easy
Tips: Take stem cuttings and place them in water or directly into moist soil. Keep the soil consistently moist until roots develop. Division can be done by separating rooted sections of the plant.
✨ Benefits & Features — Comparing Plant Value
Feather Grass
Its delicate, thread-like foliage creates a shimmering effect in the wind, adding movement and texture to gardens. It is also drought-tolerant once established, making it a low-maintenance option for dry climates.
- ✓ Adds visual interest and movement to gardens
- ✓ Drought-tolerant, reducing water consumption
- ✓ Attracts beneficial insects
- ✓ Provides habitat for small wildlife
- ✓ Low maintenance once established
- 🐾 Pet Safe
Lysimachia
Its trailing growth habit and coin-shaped leaves make it a unique and attractive ground cover. It can tolerate a range of soil conditions and is relatively easy to propagate.
- ✓ Provides ground cover and helps prevent soil erosion.
- ✓ Adds visual interest with its bright green or golden foliage.
- ✓ Can be used in hanging baskets or containers.
- ✓ Relatively easy to propagate.
- ✓ Can tolerate a range of soil conditions.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Feather Grass
Lysimachia
🌞 Light Requirements
Feather Grass
Full sun (at least 6 hours of direct sunlight per day)
Low light tolerant: ❌ No
Lysimachia
Full sun to partial shade outdoors. Indoors, requires very bright, direct light for several hours daily.
Low light tolerant: ❌ No
💧 Watering Needs
Feather Grass
Water deeply when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Established plants are drought-tolerant but benefit from occasional watering during dry spells. Signs of underwatering include browning leaf tips and drooping. Overwatering can cause yellowing leaves and a mushy base.
Lysimachia
Water thoroughly when the top inch of soil feels dry. Avoid overwatering, as it can lead to root rot. Signs of underwatering include wilting leaves. Signs of overwatering include yellowing leaves and soggy soil.
🌡️ Temperature & Humidity
Feather Grass
Temperature: 15-27°C
Humidity: 20-50%
Lysimachia
Temperature: 15-24°C
Humidity: 30-50%
🤔 Which Plant Is Right For You?
Feather Grass
Stipa tenuissimaGardeners in warm, sunny climates looking for a low-maintenance, ornamental grass.
✅ Choose This Plant If...
- You want a low-maintenance ornamental grass for a sunny garden
- You live in a warm, dry climate
- You appreciate the movement and texture it adds to landscapes
- You are looking for a drought-tolerant plant
- You want a plant that attracts beneficial insects.
❌ Skip This Plant If...
- You live in a cold climate with harsh winters
- You don't have a sunny garden
- You are concerned about its potential to become invasive.
Lysimachia
Lysimachia nummulariaExperienced gardeners looking for a ground cover for outdoor spaces or those willing to provide very bright light and manage its growth indoors.
✅ Choose This Plant If...
- You want a fast-growing ground cover for your garden.
- You have a very bright, sunny indoor space.
- You enjoy the look of trailing foliage in hanging baskets.
- You want a plant that is relatively easy to propagate.
- You are experienced with managing potentially aggressive plants.
❌ Skip This Plant If...
- You have pets that may ingest the plant.
- You have limited sunlight indoors.
- 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
Feather Grass Care Tips
Mexican Feather Grass is primarily an outdoor plant that requires full sun and well-draining soil. It is drought-tolerant once established. Growing it indoors is extremely challenging due to its high light requirements. It is prone to self-seeding and can become invasive in some climates.
- Plant in well-draining soil to prevent root rot.
- Provide full sun for optimal growth and flowering.
- Cut back dead foliage in late winter or early spring.
- Monitor for self-seeding and remove unwanted seedlings.
- Water deeply but infrequently, allowing the soil to dry out between waterings.
Lysimachia Care Tips
Creeping Jenny is relatively easy to care for outdoors, but it can be challenging indoors due to its high light requirements and potential for aggressive growth. It needs very bright light and well-draining soil. Overwatering is a common problem. Regular pruning is needed to control its spread.
- Provide bright, indirect light with some direct sun exposure.
- Water thoroughly when the top inch of soil feels dry, but avoid overwatering.
- Fertilize regularly during the growing season.
- Prune regularly to control its spread and maintain its shape.
- Monitor for pests and treat promptly.
⚠️ Common Problems & Solutions — Plant Care Comparison
Feather Grass
Lysimachia
❓ Frequently Asked Questions — Comparing These Plants
Feather Grass
What are the light requirements for Feather Grass?
Feather Grass requires a minimum of six hours of direct sunlight daily to thrive and produce its characteristic feathery plumes. Insufficient light will result in weak, leggy growth and reduced flowering. When planting in a garden, choose a location that receives full sun throughout the day. For container-grown Feather Grass, place it in a sunny spot, such as a south-facing balcony or patio. Rotate the container occasionally to ensure even light exposure. Indoors, a sunny windowsill or a grow light can supplement natural light. Lack of light will cause the plumes to be less abundant and less vibrant.
How do I care for Feather Grass?
Feather Grass thrives in full sun and well-drained soil. Water deeply but infrequently, allowing the soil to dry out between waterings. Overwatering can lead to root rot. Fertilize sparingly in spring with a balanced fertilizer to promote healthy growth. Prune back dead foliage in late winter or early spring before new growth emerges. Provide good air circulation to prevent fungal diseases. In colder climates, protect the crown of the plant with mulch during winter. Divide clumps every few years to maintain vigor and prevent overcrowding. Monitor for pests such as aphids or spider mites and treat accordingly. Proper drainage is crucial for successful cultivation.
How do I propagate Feather Grass?
Feather Grass is most easily propagated by division. In early spring or late fall, carefully dig up a mature clump and divide it into smaller sections, ensuring each section has healthy roots and foliage. Replant the divisions in well-draining soil, spacing them appropriately. Water thoroughly after planting. Alternatively, you can collect seeds from the plumes and sow them in spring, although germination rates may vary. Stem cuttings and keiki propagation are not applicable to Feather Grass. Division is the most reliable method. Ensure the divisions are planted at the same depth as the original plant.
Lysimachia
What are the light requirements for Lysimachia?
Lysimachia prefers partial to full sunlight, though the specific light needs vary depending on the species. Generally, plants need at least 4-6 hours of direct sunlight per day to thrive and produce abundant blooms. In hotter climates, providing some afternoon shade can prevent leaf scorch. Insufficient light can result in leggy growth, reduced flowering, and pale foliage.
How do I care for Lysimachia?
Lysimachia thrives in moist, well-draining soil. Water regularly, especially during dry periods, but avoid overwatering to prevent root rot. Plant in a location that receives partial to full sunlight, depending on the specific species. Fertilize monthly during the growing season (spring and summer) with a balanced liquid fertilizer to encourage blooming. Prune regularly to maintain shape and remove any dead or damaged foliage.
How do I propagate Lysimachia?
Lysimachia can be propagated easily through division, stem cuttings, and, in some species, keikis.
Last updated: April 25, 2026 — Plant care data reviewed and verified by our editorial team.