Hardy Geranium vs Monkey Grass Plant Comparison

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

Hardy Geranium

Hardy Geranium

Geranium spp.

VS
Monkey Grass

Monkey Grass

Liriope muscari

Hardy Geranium

Hardy Geranium

Geranium spp.

Hardy Geraniums are herbaceous perennials known for their resilience and attractive foliage. They form mounds of often deeply lobed or divided leaves, ranging in color from green to bronze, sometimes with interesting patterns. They are primarily outdoor plants, valued for their long blooming period, producing saucer-shaped flowers in shades of pink, purple, blue, white, and magenta. While some species can tolerate indoor conditions with sufficient light, they are generally grown outdoors in gardens and borders for their ease of care and ability to suppress weeds.

Geraniaceae Various species originate from different regions worldwide, including Europe, Asia, and North America.
✨ Features: Long blooming period, deer resistant, attracts pollinators.
📖 Read Complete Hardy Geranium Guide
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

Quick Plant Comparison

Feature Hardy Geranium Monkey Grass
Light Full sun to partial shade. Requires at least 6 hours of direct sunlight for optimal flowering. Full sun to partial shade outdoors. Requires very bright, direct light if attempted indoors.
Watering Every 7-10 days outdoors, depending on weather conditions. 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.
Humidity 40-60% 40-60%
Temperature 15-24°C 15-27°C
Care Level Expert Expert
Growth Rate Moderate Moderate; Can Spread Via Rhizomes.
Max Height Indoors: 30-60 cm (unlikely to thrive). Outdoors: 30-90 cm. Outdoors: 30-45 cm. Indoors (unlikely to thrive): 20-30cm
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-draining soil. A mix of garden soil, compost, and perlite is suitable. Well-draining soil; sandy loam is ideal. Avoid heavy clay soils.
Beginner Friendly ❌ No ❌ No
Weekly Maintenance 15 minutes weekly (deadheading, watering). 10 minutes weekly (mostly weeding around the plant)

🔬 Botanical Information — Comparing These Plants

Hardy Geranium

Scientific Name Geranium spp.
Family Geraniaceae
Native To Various species originate from different regions worldwide, including Europe, Asia, and North America.
Also Known As Hardy Geranium, Cranesbill
Leaves Leaves are typically palmate or deeply lobed, ranging in color from green to bronze, sometimes with interesting patterns or markings. Leaf texture can vary from smooth to slightly hairy.
Flowers Flowers are saucer-shaped, with five petals, and come in a variety of colors, including pink, purple, blue, white, and magenta. Flowering is profuse and long-lasting outdoors. Indoors, flowering is rare and significantly reduced.

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.

📏 Size & Growth — Plant Comparison

Hardy Geranium

Height Indoors: 30-60 cm (unlikely to thrive). Outdoors: 30-90 cm.
Spread Indoors: 30-60 cm (unlikely to thrive). Outdoors: 30-90 cm. Some species can spread via rhizomes.
Growth Rate Moderate
Growth Pattern Forms a mounding or spreading habit, depending on the species. Some species spread via rhizomes, creating a groundcover effect.

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.

🌱 Propagation — Comparing Plant Growth

Hardy Geranium

Methods: Division, Stem cuttings, Seed

Difficulty: Easy

Tips: Divide established clumps in spring or fall. Take stem cuttings in late spring or early summer and root in well-draining soil. Seeds can be sown in spring after a period of cold stratification.

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.

✨ Benefits & Features — Comparing Plant Value

Hardy Geranium

Hardy Geraniums are known for their long blooming period, often flowering from late spring to fall. Their foliage can also be quite attractive, with some varieties displaying interesting colors and patterns.

  • ✓ Attracts pollinators to the garden.
  • ✓ Provides long-lasting color in the landscape.
  • ✓ Deer resistant, reducing garden damage.
  • ✓ Suppresses weeds, reducing maintenance.
  • ✓ Relatively low-maintenance once established.
  • ⚠️ Toxic to pets

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

📅 Maintenance Schedule — Plant Care Comparison

Hardy Geranium

Repotting Not applicable for outdoor plants. If grown in containers, repot every 2-3 years or as needed.
Pruning Deadhead spent flowers regularly to encourage continued blooming. Cut back foliage after the first frost.
Fertilizing Balanced slow-release fertilizer in spring. Light feeding with liquid fertilizer during the growing season (every 4-6 weeks).
Seasonal Care Spring: Fertilize and divide if needed. Summer: Deadhead spent flowers to encourage more blooms. Fall: Cut back foliage after the first frost. Winter: Provide mulch in colder climates.

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.

🌞 Light Requirements

Hardy Geranium

Full sun to partial shade. Requires at least 6 hours of direct sunlight for optimal flowering.

Low light tolerant: ❌ No

Monkey Grass

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

Low light tolerant: ❌ No

💧 Watering Needs

Hardy Geranium

Water thoroughly when the top inch of soil feels dry. Avoid overwatering, as this can lead to root rot. Ensure good drainage.

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.

🌡️ Temperature & Humidity

Hardy Geranium

Temperature: 15-24°C

Humidity: 40-60%

Monkey Grass

Temperature: 15-27°C

Humidity: 40-60%

🤔 Which Plant Is Right For You?

Hardy Geranium

Hardy Geranium

Geranium spp.
Care: Expert Time: 15 minutes weekly (deadheading, watering). Beginner: No

Gardeners looking for low-maintenance, long-blooming perennials for their outdoor beds and borders.

✅ Choose This Plant If...

  • You want a low-maintenance perennial for your garden.
  • You need a plant that is deer resistant.
  • You want to attract pollinators to your garden.
  • You desire a long blooming period.
  • You need a plant that can suppress weeds.

❌ Skip This Plant If...

  • You have pets that might ingest the plant.
  • You cannot provide adequate sunlight for outdoor plants indoors.
  • You are looking for a plant that thrives indoors with minimal care.
📍 Ideal Location: Outdoor garden beds, borders, or containers.
🎨 Style: Cottage, Traditional, Naturalistic
🏠 Apartment Friendly: No
⚠️ Geraniums contain geraniol and linalool, which are toxic to dogs, cats, and horses. Symptoms include vomiting, diarrhea, depression, and dermatitis. All parts of the plant are considered toxic.
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.

🎯 Quick Verdict

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

⚡ Key Differences Between These Plants

📈

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

💡 Pro Tips For Comparing These Plants

Hardy Geranium Care Tips

Hardy Geraniums are primarily outdoor plants. While they can be attempted indoors, providing adequate light and preventing pests can be challenging. They require well-draining soil, regular watering, and occasional fertilization. Indoor flowering is unlikely.

  • Deadhead spent flowers regularly to encourage more blooms.
  • Provide well-draining soil to prevent root rot.
  • Fertilize in spring with a balanced slow-release fertilizer.
  • Divide established clumps every few years to maintain vigor.
  • Water deeply but infrequently, allowing the soil to dry out slightly between waterings.
❄️ Winter: Cut back foliage after the first frost. Provide mulch in colder climates to protect the roots. Reduce watering during dormancy.
☀️ Summer: Deadhead spent flowers regularly to encourage more blooms. Water deeply during dry spells. Provide some afternoon shade in hotter climates.

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.

⚠️ Common Problems & Solutions — Plant Care Comparison

Hardy Geranium

Common Issues: Root rot, Powdery mildew, Aphids, Spider mites
Solutions: Root rot: Ensure well-draining soil and avoid overwatering. Powdery mildew: Improve air circulation and apply fungicide. Aphids/Spider mites: Insecticidal soap or neem oil.

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.

❓ Frequently Asked Questions — Comparing These Plants

Hardy Geranium

What are the light requirements for Hardy Geranium?

Hardy Geraniums thrive best in locations that receive at least six hours of sunlight per day, although they can tolerate partial shade. In hotter climates, providing some afternoon shade can help prevent leaf scorch. When planting, consider the amount of sunlight your garden receives at different times of the day and choose a location that provides the optimal balance of light and shade.

How do I care for Hardy Geranium?

Hardy Geraniums are remarkably easy to care for, making them ideal for gardeners of all levels. Plant them in well-draining soil in a location that receives full sun to partial shade. Water regularly, especially during dry periods, but avoid overwatering, which can lead to root rot. Fertilize in spring with a balanced fertilizer to promote healthy growth and abundant blooms.

How do I propagate Hardy Geranium?

Hardy Geraniums can be easily propagated through division, stem cuttings, or seed. For division, carefully dig up the plant in early spring or fall and divide the root ball into smaller sections, each with healthy roots and foliage. Replant the divisions in well-draining soil.

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.

Last updated: April 28, 2026 — Plant care data reviewed and verified by our editorial team.