Monkey Grass vs Valerian Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Monkey Grass
Liriope muscari
Liriope muscari, commonly known as lilyturf or monkey grass, is a grass-like perennial often used as a ground cover or border plant. It features clumps of arching, strap-like, dark green leaves. While it resembles grass, it's not a true grass. It produces spikes of small, lavender to purple flowers in late summer, followed by blackish berries. Primarily an outdoor plant, it's valued for its low maintenance, drought tolerance, and ability to suppress weeds. It's rarely grown indoors due to its need for bright light and outdoor conditions.
Valerian
Valeriana officinalis
Valeriana officinalis is a perennial flowering plant with a distinctive odor, growing up to 1.5 meters (5 feet) tall. It features pinnate leaves and clusters of small, fragrant white or pink flowers that bloom in the summer. Primarily an outdoor plant, it thrives in moist, well-drained soil and full to partial sun. Valerian is cultivated for its rhizomes and roots, which are used in herbal medicine as a sleep aid and to reduce anxiety. Growing it indoors is challenging due to its size and light requirements.
Quick Plant Comparison
| Feature | Monkey Grass | Valerian |
|---|---|---|
| Light | Full sun to partial shade outdoors. Requires very bright, direct light if attempted indoors. | Full sun to partial shade outdoors. Requires at least 6 hours of direct sunlight daily. |
| Watering | Outdoors: Every 7-14 days, depending on rainfall and temperature. Indoors (if attempted): Every 7-10 days, allowing the soil to dry slightly between waterings. | Every 7-10 days outdoors, depending on weather conditions. |
| Humidity | 40-60% | 40-60% |
| Temperature | 15-27°C | 15-24°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate; Can Spread Via Rhizomes. | Fast |
| Max Height | Outdoors: 30-45 cm. Indoors (unlikely to thrive): 20-30cm | 0.9-1.5 meters (outdoors). Significantly smaller if attempted indoors. |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining soil; sandy loam is ideal. Avoid heavy clay soils. | Well-drained, loamy soil |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 10 minutes weekly (mostly weeding around the plant) | 15 minutes weekly (weeding, watering, pruning) |
🔬 Botanical Information — Comparing These Plants
Monkey Grass
| Scientific Name | Liriope muscari |
|---|---|
| Family | Asparagaceae |
| Native To | East Asia (China, Japan, Korea) |
| Also Known As | Lilyturf, Border Grass |
| Leaves | Strap-like, linear leaves, typically dark green in color. Can be variegated in some cultivars. Leaves are typically 20-40 cm long and 1-2 cm wide. |
| Flowers | Produces spikes of small, lavender to purple flowers in late summer. Flowering is rare and less pronounced when grown indoors. |
Valerian
| Scientific Name | Valeriana officinalis |
|---|---|
| Family | Caprifoliaceae |
| Native To | Europe and Asia |
| Also Known As | Valerian Root, Garden Valerian, Common Valerian |
| Leaves | Pinnate leaves, meaning they are divided into leaflets arranged on either side of a central stalk. The leaflets are lance-shaped and medium green in color. The leaves are typically 5-10 cm long. |
| Flowers | It produces clusters of small, fragrant white or pink flowers in the summer. The flowers are arranged in corymbs (flat-topped clusters) and are attractive to pollinators. |
📏 Size & Growth — Plant Comparison
Monkey Grass
Valerian
🌱 Propagation — Comparing Plant Growth
Monkey Grass
Methods: Division, Seed
Difficulty: Easy
Tips: Division is best done in spring or fall. Dig up a clump and separate the rhizomes, ensuring each division has roots and leaves. Plant the divisions in well-draining soil.
Valerian
Methods: Seed, Division, Root cuttings
Difficulty: Easy
Tips: Divide rhizomes in spring or fall. Sow seeds in spring after the last frost. Root cuttings can be taken in late fall or early spring.
✨ Benefits & Features — Comparing Plant Value
Monkey Grass
It is a grass-like perennial that is not a true grass. It produces attractive flower spikes and berries. It is drought-tolerant and relatively low-maintenance once established.
- ✓ Erosion control on slopes.
- ✓ Low maintenance ground cover.
- ✓ Weed suppression in garden beds.
- ✓ Drought tolerance once established.
- ✓ Provides visual interest with its foliage and flowers.
- ⚠️ Toxic to pets
Valerian
Valerian's distinctive odor, which some find unpleasant, is attractive to cats. Its roots are used medicinally for their calming and sleep-inducing properties.
- ✓ Medicinal properties for sleep and anxiety relief.
- ✓ Attracts pollinators to the garden.
- ✓ Adds fragrance to the garden.
- ✓ Provides a natural remedy option.
- ✓ Aesthetically pleasing flowers.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Monkey Grass
Valerian
🌞 Light Requirements
Monkey Grass
Full sun to partial shade outdoors. Requires very bright, direct light if attempted indoors.
Low light tolerant: ❌ No
Valerian
Full sun to partial shade outdoors. Requires at least 6 hours of direct sunlight daily.
Low light tolerant: ❌ No
💧 Watering Needs
Monkey Grass
Water thoroughly when the top inch of soil is dry. Overwatering can lead to root rot, especially in poorly draining soil. Underwatering will cause the leaves to brown and droop. Ensure good drainage.
Valerian
Water deeply when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Signs of overwatering include yellowing leaves and a musty smell. Underwatering is indicated by wilting leaves.
🌡️ Temperature & Humidity
Monkey Grass
Temperature: 15-27°C
Humidity: 40-60%
Valerian
Temperature: 15-24°C
Humidity: 40-60%
🤔 Which Plant Is Right For You?
Monkey Grass
Liriope muscariGardeners seeking a low-maintenance ground cover or border plant in outdoor landscapes.
✅ Choose This Plant If...
- You need a low-maintenance ground cover for your garden.
- You want to control erosion on a slope.
- You need a plant that is drought-tolerant once established.
- You want to suppress weeds in your garden beds.
- You need a plant that tolerates partial shade.
❌ Skip This Plant If...
- You have pets that might ingest it, as it is toxic.
- You are looking for an easy indoor plant, as it is challenging to grow indoors.
- You have limited space, as it can spread aggressively.
Valerian
Valeriana officinalisGardeners interested in growing herbs for medicinal purposes in an outdoor setting.
✅ Choose This Plant If...
- You want to grow herbs for medicinal purposes.
- You have a sunny garden space.
- You are interested in attracting pollinators to your garden.
- You want a fragrant flowering plant.
- You are experienced with growing herbs outdoors.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You lack a sunny outdoor space.
- You are looking for a low-maintenance indoor plant.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Monkey Grass has moderate; can spread via rhizomes. growth, while Valerian grows fast.
💡 Pro Tips For Comparing These Plants
Monkey Grass Care Tips
Liriope muscari is primarily an outdoor plant. Indoor cultivation is challenging due to its high light requirements and need for well-draining soil. It can be aggressive, spreading via rhizomes. Toxicity to pets is a significant concern.
- Plant in well-draining soil to prevent root rot.
- Water deeply but infrequently, allowing the soil to dry slightly between waterings.
- Fertilize in spring with a slow-release fertilizer.
- Divide clumps every few years to control spread and rejuvenate the plant.
- Monitor for pests and diseases, and treat promptly.
Valerian Care Tips
Valerian is primarily an outdoor plant and requires full sun and well-drained soil. Indoor cultivation is difficult due to its size and high light requirements. It can be challenging to provide adequate conditions indoors, and it may not thrive.
- Provide well-drained soil to prevent root rot.
- Ensure at least 6 hours of direct sunlight daily.
- Water deeply but infrequently, allowing the soil to dry slightly between waterings.
- Fertilize sparingly in the spring.
- Monitor for pests and diseases regularly.
⚠️ Common Problems & Solutions — Plant Care Comparison
Monkey Grass
Valerian
❓ Frequently Asked Questions — Comparing These Plants
Monkey Grass
What are the light requirements for Monkey Grass?
Monkey Grass thrives in bright, indirect light. While it can tolerate some shade, too little light can lead to leggy growth and reduced vibrancy. Avoid direct sunlight, especially during the hottest parts of the day, as it can scorch the leaves. East-facing windows are ideal, providing gentle morning light. North-facing windows can also work if the light is sufficient. If you notice the leaves fading or stretching towards the light source, move the plant to a brighter location. Consider using grow lights if natural light is insufficient, especially during winter months. Rotate the plant regularly to ensure even light exposure on all sides.
How do I care for Monkey Grass?
Monkey Grass is relatively easy to care for. Provide bright, indirect light for optimal growth. Water regularly, keeping the soil consistently moist but not waterlogged. Ensure good drainage to prevent root rot. Fertilize lightly during the growing season (spring and summer) with a balanced liquid fertilizer. Prune away any dead or damaged foliage to maintain its appearance and encourage new growth. Monkey Grass prefers temperatures between 60-75°F (15-24°C) and appreciates high humidity. Mist the foliage regularly or use a humidifier to increase humidity levels, especially in dry environments. Repot every 2-3 years as needed, using a well-draining potting mix.
How do I propagate Monkey Grass?
Monkey Grass can be propagated through division, stem cuttings, and air layering.
Valerian
What are the light requirements for Valerian?
Valerian flourishes in full sun to partial shade. Ideally, it should receive at least six hours of direct sunlight daily for optimal growth and abundant flowering. In hotter climates, provide afternoon shade to prevent scorching of the leaves. When grown indoors, place Valerian near a sunny window, preferably south-facing. If natural light is insufficient, supplement with grow lights to ensure adequate illumination. Insufficient light can result in leggy growth and reduced flowering. Rotate the plant regularly to ensure even exposure to light on all sides.
How do I care for Valerian?
Valerian thrives in well-drained soil and prefers full sun to partial shade. Water regularly, keeping the soil consistently moist but not waterlogged. Fertilize during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength, to encourage blooming. Deadhead spent flowers to promote continuous flowering. Valerian is relatively low-maintenance, but it can benefit from occasional pruning to maintain its shape and prevent overcrowding. It’s generally pest and disease-resistant. Provide adequate air circulation to prevent fungal issues. In colder climates, Valerian may die back in winter but will regrow in spring. Consider container growing if you want to control its spread.
How do I propagate Valerian?
Valerian can be propagated through division, stem cuttings, or seed. Division is best done in spring or fall. Carefully dig up the plant and separate the roots into smaller clumps, ensuring each clump has healthy roots and foliage. Replant the divisions in well-drained soil. For stem cuttings, take 4-6 inch cuttings from healthy stems in spring or summer. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cuttings in a well-draining potting mix and keep them moist until roots develop. Growing from seed is also possible, sow seeds indoors in early spring or directly into the garden after the last frost.
Last updated: April 28, 2026 — Plant care data reviewed and verified by our editorial team.