Monkey Grass vs Peony Plant Comparison

Compare these two plants side by side — care needs, key differences, and which is right for your home.

Monkey Grass

Monkey Grass

Liriope muscari

VS
Peony

Peony

Paeonia spp.

Monkey Grass

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.

Asparagaceae East Asia (China, Japan, Korea)
✨ Features: Drought tolerant, weed suppressing, erosion control.
📖 Read Complete Monkey Grass Guide
Peony

Peony

Paeonia spp.

Peonies are perennial flowering plants known for their large, showy blooms and lush foliage. They are primarily grown outdoors in gardens and landscapes. Peonies come in various forms, including herbaceous perennials that die back to the ground each winter and tree peonies that have woody stems. Their flowers can be single, semi-double, or double, and come in a range of colors including pink, red, white, and yellow. People grow them for their beautiful flowers, fragrance, and long lifespan.

Paeoniaceae Asia, Europe, and Western North America
✨ Features: Large, fragrant flowers; long lifespan; deer-resistant.
📖 Read Complete Peony Guide

Quick Plant Comparison

Feature Monkey Grass Peony
Light Full sun to partial shade outdoors. Requires very bright, direct light if attempted indoors. Full sun (at least 6 hours of direct sunlight per day)
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. Once or twice a week during the growing season, less frequently during dormancy.
Humidity 40-60% 30-50%
Temperature 15-27°C 15-24°C
Care Level Expert Expert
Growth Rate Moderate; Can Spread Via Rhizomes. Moderate
Max Height Outdoors: 30-45 cm. Indoors (unlikely to thrive): 20-30cm Not applicable for indoor growing. Outdoors: 0.6-1.2 meters (2-4 feet)
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-draining soil; sandy loam is ideal. Avoid heavy clay soils. Well-draining, fertile soil with a slightly acidic to neutral pH (6.0-7.0)
Beginner Friendly ❌ No ❌ No
Weekly Maintenance 10 minutes weekly (mostly weeding around the plant) 30 minutes weekly during the growing season.

🔬 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.

Peony

Scientific Name Paeonia spp.
Family Paeoniaceae
Native To Asia, Europe, and Western North America
Also Known As Peony
Leaves Peony leaves are typically dark green, deeply divided, and have a slightly glossy texture. The leaves are arranged alternately along the stems and can vary in size depending on the variety.
Flowers Peonies are rarely, if ever, grown indoors for flowering. They require a cold dormancy period to initiate flower buds. Outdoors, they produce large, showy blooms in the spring, ranging in color from white and pink to red and yellow. Flowers can be single, semi-double, or double.

📏 Size & Growth — Plant Comparison

Monkey Grass

Height Outdoors: 30-45 cm. Indoors (unlikely to thrive): 20-30cm
Spread 30-60 cm; spreads via rhizomes, potentially becoming aggressive.
Growth Rate Moderate; Can Spread Via Rhizomes.
Growth Pattern Forms dense clumps of arching, strap-like leaves. Spreads via rhizomes, forming a ground cover.

Peony

Height Not applicable for indoor growing. Outdoors: 0.6-1.2 meters (2-4 feet)
Spread Not applicable for indoor growing. Outdoors: 0.6-1.2 meters (2-4 feet)
Growth Rate Moderate
Growth Pattern Herbaceous peonies grow as upright, bushy plants that die back to the ground each winter. Tree peonies have a more shrub-like growth habit with woody stems that remain throughout the year.

🌱 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.

Peony

Methods: Division, Seed

Difficulty: Moderate

Tips: Divide herbaceous peonies in the fall, ensuring each division has at least 3-5 eyes (buds). Plant divisions immediately. Seed propagation is slow and may take several years to produce flowering plants.

✨ 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

Peony

Peonies are known for their large, showy, and fragrant blooms that come in a variety of colors and forms. They are long-lived perennials that can thrive for many years with proper care. Tree peonies have woody stems, while herbaceous peonies die back to the ground each winter.

  • ✓ Adds beauty and fragrance to the garden.
  • ✓ Provides long-lasting blooms for several weeks.
  • ✓ Attracts pollinators to the garden.
  • ✓ Deer-resistant.
  • ✓ Long lifespan provides years of enjoyment.
  • ⚠️ Toxic to pets

📅 Maintenance Schedule — Plant Care Comparison

Monkey Grass

Repotting Not applicable for outdoor planting. If grown indoors (not recommended), repot every 1-2 years to refresh the soil and control spread.
Pruning Prune back dead or damaged foliage in early spring. Mow or shear back in late winter to encourage fresh growth.
Fertilizing Slow-release fertilizer in spring. A balanced fertilizer (10-10-10) can be applied at half strength.
Seasonal Care Spring: Fertilize. Summer: Monitor for pests and water during dry spells. Fall: Divide if needed. Winter: Dormant; reduce watering.

Peony

Repotting Not applicable for indoor growing.
Pruning Deadhead spent flowers to encourage more blooms. Remove any dead or diseased foliage.
Fertilizing Balanced fertilizer (10-10-10) in early spring, followed by a fertilizer higher in phosphorus to promote blooming.
Seasonal Care Spring: Fertilize and provide support for heavy blooms. Summer: Water regularly and deadhead spent flowers. Fall: Cut back herbaceous peonies after the foliage dies back. Winter: Provide a cold dormancy period.

🌞 Light Requirements

Monkey Grass

Full sun to partial shade outdoors. Requires very bright, direct light if attempted indoors.

Low light tolerant: ❌ No

Peony

Full sun (at least 6 hours of direct sunlight per day)

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.

Peony

Water deeply when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. During the growing season, water more frequently. Reduce watering in the fall and winter.

🌡️ Temperature & Humidity

Monkey Grass

Temperature: 15-27°C

Humidity: 40-60%

Peony

Temperature: 15-24°C

Humidity: 30-50%

🤔 Which Plant Is Right For You?

Monkey Grass

Monkey Grass

Liriope muscari
Care: Expert Time: 10 minutes weekly (mostly weeding around the plant) Beginner: No

Gardeners 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.
📍 Ideal Location: Outdoors: Garden beds, borders, slopes. Indoors (not recommended): Brightest possible location, such as a south-facing window.
🎨 Style: Traditional, Cottage, Naturalistic
🏠 Apartment Friendly: No
⚠️ According to the ASPCA, Liriope muscari is toxic to dogs, cats, and horses. The steroidal saponins present in the plant can cause vomiting, diarrhea, and abdominal pain if ingested.
Peony

Peony

Paeonia spp.
Care: Expert Time: 30 minutes weekly during the growing season. Beginner: No

Experienced gardeners who want to add beautiful, long-lived flowering plants to their outdoor landscape.

✅ Choose This Plant If...

  • You have a sunny garden space that receives at least 6 hours of direct sunlight daily.
  • You appreciate large, fragrant, and showy blooms in the spring.
  • You are looking for a long-lived perennial plant that will return year after year.
  • You want to attract pollinators like bees and butterflies to your garden.
  • You are willing to provide the necessary winter dormancy period for optimal flowering.

❌ Skip This Plant If...

  • You lack a sunny outdoor space to provide adequate sunlight.
  • You are looking for an indoor plant.
  • You live in a climate that does not experience cold winters.
  • You have pets that may ingest the plant, as it is toxic to them.
📍 Ideal Location: Outdoor garden or landscape with full sun exposure.
🎨 Style: Traditional, Cottage, Romantic
🏠 Apartment Friendly: No
⚠️ Peonies contain paeonol, which is toxic to dogs, cats, and horses. Symptoms include vomiting, diarrhea, and depression. All parts of the plant are considered toxic, but the highest concentration is in the roots and stems.

🎯 Quick Verdict

Best for Beginners Neither ideal
Pet Friendly Neither - caution
Less Maintenance Similar effort
Apartment Friendly Check space

⚡ Key Differences Between These Plants

📈

Monkey Grass has moderate; can spread via rhizomes. growth, while Peony grows moderate.

💡 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.
❄️ Winter: Dormant in winter. Reduce watering. Protect from extreme cold in colder climates.
☀️ Summer: Water regularly during dry spells. Monitor for pests and diseases. Provide shade during the hottest part of the day in extremely hot climates.

Peony Care Tips

Peonies are not suitable for indoor growing due to their high light requirements and dormancy needs. They require a cold period in winter to bloom properly. Attempting to grow them indoors will likely result in weak growth and no flowers.

  • Plant peonies in well-draining soil to prevent root rot.
  • Provide support for heavy blooms to prevent stems from breaking.
  • Ensure peonies receive at least 6 hours of direct sunlight per day.
  • Fertilize in early spring and after blooming to promote growth and flowering.
  • Deadhead spent flowers to encourage more blooms.
❄️ Winter: Herbaceous peonies require a cold dormancy period in winter. Cut back the foliage after it dies back in the fall. Tree peonies do not need to be cut back, but should be protected from extreme cold if necessary.
☀️ Summer: Water regularly during the summer months, especially during dry periods. Deadhead spent flowers to encourage more blooms. Provide support for heavy blooms to prevent stems from breaking.

⚠️ Common Problems & Solutions — Plant Care Comparison

Monkey Grass

Common Issues: Root rot, Crown rot, Anthracnose, Spider mites
Solutions: Root rot: Improve drainage, reduce watering frequency. Crown rot: Remove affected foliage, apply fungicide. Anthracnose: Remove infected leaves, apply fungicide. Spider mites: Insecticidal soap or neem oil.

Peony

Common Issues: Botrytis blight, Peony wilt, Lack of blooms
Solutions: Botrytis blight: Improve air circulation and remove infected foliage. Peony wilt: Remove and destroy infected plants. Lack of blooms: Ensure adequate sunlight, proper fertilization, and a cold dormancy period.

❓ 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.

Peony

What are the light requirements for Peony?

Peonies demand ample sunlight to produce their magnificent blooms. Aim for at least six hours of direct sunlight daily. Morning sun is particularly beneficial, as it helps to dry the foliage and prevent fungal diseases. In hotter climates, some afternoon shade can be beneficial to prevent scorching.

How do I care for Peony?

Peonies thrive in well-drained soil and require full sun (at least 6 hours per day) for optimal blooming. Water deeply but infrequently, allowing the soil to dry out slightly between waterings. Fertilize in early spring with a balanced fertilizer. Support heavy blooms with stakes or hoops to prevent them from drooping.

How do I propagate Peony?

Peonies are most commonly propagated by division. In the fall, after the foliage has died back, carefully dig up the plant and divide the root clump into sections, ensuring each section has at least three to five eyes (buds). Replant the divisions in well-drained soil.

Last updated: May 5, 2026 — Plant care data reviewed and verified by our editorial team.