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Choose liriope by species and site: clumping Liriope muscari is generally better for controlled edging, while rhizomatous L. spicata spreads quickly and needs a suitable, contained location. Plant into well-drained soil without burying the crown, water new plantings during establishment, and check local extension guidance before specifying either species.
Installation cost depends on local plant prices and the work the site needs. Estimate the plant quantity from bed dimensions and the selected spacing, then price site preparation, removal, edging or root barrier, delivery, labor, and establishment care with local suppliers and contractors.
Choose the Right Liriope Before You Buy
“Monkey grass” and “lilyturf” are common names, not reliable descriptions of growth habit. Confirm the species on the nursery label and check local invasive-plant guidance before planting, especially near natural areas or adjacent groundcover.
| Species | Growth habit | Best-fit use | Spacing guidance | Containment and local checks |
|---|---|---|---|---|
| Liriope muscari | Clump-forming; can expand by basal suckering | Generally suited to edging and controlled groundcover | About 12 inches, per Clemson Extension and NC State Extension guidance | Do not assume clumping means it cannot spread. UF/IFAS notes mature plants can reach about 24 inches wide; check local ecological assessments. |
| Liriope spicata | Spreads quickly by rhizomes | Broad groundcover only where spread is acceptable; a poor choice for narrow sidewalk edging | 6–12 inches, per UF/IFAS | UF/IFAS recommends a bed surrounded by hardscape or an 18-inch-deep edging/root barrier as a containment option. Monitor the boundary and check local guidance. |
Liriope muscari: Often the Better Fit for Controlled Borders
NC State Extension describes L. muscari as clumping and lower-aggression than L. spicata, with use in edging and groundcover. It is generally the better starting point for a border where a controlled outline matters. It can still expand over time, so allow for mature width and maintenance.
#1 Best Overall
- The Super Blue Liriope is an improved variety of the more common Big Blue Liriope that grows a bit taller and can tolerate more direct sunlight. It features abundant blue-purple spikes of flowers that rise above its tufted, grass like foliage in summer and are followed by clusters of black berries. This liriope is best used as a ground-cover, border or edging plant or in a mass planting.
- Quick Establishment: Rapidly grows to provide full ground coverage and suppress weeds.
- Sun and Shade Friendly: Adaptable to various light conditions for versatile planting.
- Dense Foliage: Perfect for creating lush borders and adding texture to garden beds.
- Drought Resistant: Low water needs make it an ideal choice for eco-friendly gardening.
Liriope spicata: A Spreading Groundcover That Needs Planning
L. spicata spreads by rhizomes and can invade adjacent turf or groundcover. UF/IFAS describes it as a fast-spreading plant and does not recommend it in its Florida guidance. That is a regional institutional recommendation, not a universal legal classification. Check current local invasive-plant lists and extension guidance before specifying it.
Risk assessments can vary by species and region. UF/IFAS rates L. muscari as moderate risk in Florida natural areas and says it is under evaluation there. UGA’s North Georgia groundcover publication places it in Category 3, a category describing an exotic plant that is a minor problem in Georgia natural areas or is known to be a problem in adjacent states. Verify current local assessments for the project location.
Where Liriope Works Best
Liriope is used as edging and groundcover, but suitability depends on species and site conditions. For an edging project, consider clumping L. muscari; for L. spicata, plan for its rhizomatous spread and avoid locations where escape into adjacent beds or turf would be a problem.
Liriope is a groundcover, not a substitute for a regularly walked path. Where people need a daily route through a bed, use a walkway material such as pavers or flagstone rather than relying on plants to tolerate that traffic.
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Choose a well-drained planting area. Liriope does not tolerate persistently wet conditions well, and poor drainage and excess water are associated with root and crown rot. Check the site before planting rather than expecting new plants to correct drainage problems.
Light and Soil
L. muscari tolerates a range of light and soil conditions, though NC State Extension notes that it prefers well-drained soil. Conditions vary by site and cultivar; follow local extension guidance for the planting location.
Drainage
Do not plant into persistently wet soil or bury the crown. If the site has poor drainage, address the cause before installing liriope. Clemson Extension describes root rot associated with Phytophthora, Fusarium oxysporum, and Rhizoctonia solani; affected plants should be removed, and fungicide is not a cure.
Rank #2
- Super Blue Liriope Muscari features lush, grass-like foliage and vibrant purple flower spikes, perfect for any garden setting
- This low-maintenance perennial thrives in sun or shade, making it an adaptable choice for diverse landscaping needs
- Excellent ground cover option, Super Blue Liriope forms dense clumps that help suppress weeds and enhance garden aesthetics
- Drought-tolerant once established, this versatile plant requires minimal watering, ideal for busy gardeners seeking low-effort beauty
- Enjoy year-round interest with Super Blue Liriope's evergreen foliage, providing texture and color throughout all seasons
Slopes and Erosion
Liriope may be used as groundcover, but plantings are not a substitute for drainage or grading work. Assess runoff and local requirements before changing grades or redirecting water.
How Far Apart Should You Plant Liriope?
Spacing depends on species and the desired time to coverage. Clemson Extension and NC State Extension advise about one foot for liriope, while UF/IFAS gives 6–12 inches for L. spicata. Specify the species and chosen spacing in the estimate; plant size, bed conditions, and the intended coverage also affect the layout.
Calculate quantity from the bed dimensions and proposed spacing rather than guessing. For groundcover, a staggered layout can be used; state the layout in the planting plan so the quantity is clear.
| Planning item | What to establish |
|---|---|
| Bed dimensions | Measure the area to be planted, accounting for curves and excluded areas. |
| Species and spacing | Record whether the planting is L. muscari or L. spicata and the selected spacing. |
| Plant size and layout | State the stock size and whether rows are staggered. |
| Coverage goal | Use the intended mature coverage and time to fill in when selecting quantity. |
Mississippi State Extension explains calculating groundcover needs from bed area and mature coverage. Use that planning approach with the selected liriope species and spacing rather than relying on a generic count table.
How Much Does Liriope Installation Cost?
The research sources do not establish current liriope plant prices or a reliable installed-cost range. Do not rely on generic national price figures as a current quote. Get current local nursery and contractor pricing for the actual species, stock size, and site scope.
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Build an estimate by listing the work and materials that apply:
- Species or cultivar, stock size, and quantity based on the measured bed and chosen spacing.
- Removal and disposal of existing turf or plants.
- Soil preparation and any drainage correction.
- Edging or root barrier, including the material and depth specified.
- Delivery, planting labor, mulch if used, and establishment watering and weeding.
Mississippi State Extension supports using bed area and mature coverage to plan groundcover quantities, but it does not supply liriope prices. Request local quotes for both materials and the site-specific work; costs vary with plant size, access, preparation, and containment needs.
Rank #3
- VERSATILE GROUND COVER & BORDER PLANT: Liriope Muscari, commonly known as Monkey Grass, can be used for xeriscapes as a ground cover, border plant, or in container gardens. Its dense green foliage creates a tidy, low-maintenance option for any landscape
- DROUGHT-TOLERANT & LOW MAINTENANCE: Once established, Monkey Grass is highly drought-tolerant, making it an excellent choice for water-conscious gardens. During the first year, it requires weekly watering in hot weather, but after that, it thrives with minimal care
- ATTRACTIVE FLOWERS & BLACK BERRIES: In addition to its lush green foliage, this perennial produces beautiful blue flowers followed by striking black berries, which add visual interest and remain attractive long after the flowers have faded
- COLD-HARDY & UNWANTED BY WILDLIFE: Liriope Muscari is a hardy plant that thrives in USDA Zones 5-11 and unwanted by deer, making it suitable for gardens in both colder and warmer climates. Its resilience makes it a reliable addition to any landscape
- EASY TO GROW FROM SEED: Growing Monkey Grass from seed is simple and rewarding. After sowing, the seeds will germinate in 30-90 days when kept in cool conditions, allowing you to easily establish this beautiful grass in your garden
How to Plant Liriope Correctly
Plan the species, spacing, drainage, and containment before digging. The crown should not be buried, and the planting area should drain well.
- Confirm species and site suitability. Select the species for the intended use and check regional invasive-plant guidance, particularly for L. spicata.
- Measure and lay out the bed. Calculate the plant quantity from bed dimensions, selected spacing, and coverage goal. Mark the planting layout before ordering plants.
- Prepare the site. Remove existing growth that would compete with the planting. Correct persistent wetness and other drainage problems before planting.
- Set plants at the right height. Plant without burying the crown. Clemson Extension specifically cautions against installing liriope so deeply that the crown is buried.
- Water for establishment. Water new plants while they establish, then adjust care to the species, site, and weather.
- Install containment where needed. For L. spicata, UF/IFAS suggests a bed surrounded by hardscape or an 18-inch-deep edging/root barrier. This is a recommendation, not a guarantee that spread will be eliminated.
Watering, Fertilizer, and Routine Care
Water new plantings during establishment. NC State Extension advises first-year watering for L. muscari; once established, it generally needs little supplemental irrigation. Adjust to local conditions and weather rather than treating that guidance as a fixed watering schedule.
Avoid excess water and persistently wet soil. Clemson Extension associates root rot with several soilborne pathogens and advises removing affected plants; fungicide is not a cure. Check drainage and nursery-grown roots before planting, as recommended in UF/IFAS pest guidance.
Avoid excess fertilizer. If plants decline or show discolored foliage, check growing conditions and consult local extension guidance before choosing a treatment. Scale can cause discolored foliage; follow local extension advice and product-label directions for any treatment.
Cutting Back Liriope
Cut old foliage back in late winter before new growth begins, taking care not to damage the crown. Adjust timing to local climate. Clemson Extension gives late January in lower coastal South Carolina and mid-February in upstate South Carolina as local examples; those dates are not a nationwide calendar.
Clean up old foliage before new shoots emerge. If new growth has already started, avoid cutting into it.
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Pests, Diseases, and Problems to Watch
Persistently wet soil and poor drainage can lead to root or crown rot. Clemson Extension identifies Phytophthora, Fusarium oxysporum, and Rhizoctonia solani as associated pathogens, advises removing affected plants, and says fungicide is not a cure.
Rank #4
- Great for landscape edging plants and shade garden borders where ground coverage and greenery are needed year-round
- Use in foundation planting ideas for homes needing easy-care landscaping solutions for sun or shade conditions
- deal for decorative walkway border planting with vibrant green foliage and small summer blooms
- Ground cover plants for under trees and alongside patios offering uniform foliage and garden definition
- Shade tolerant landscaping plants with ornamental leaves used in pathways driveways and home garden spaces
Discolored foliage can be associated with scale. UF/IFAS pest guidance recommends well-drained conditions and checking nursery-grown roots before planting. For diagnosis and treatment, use local extension guidance and follow the product label.
Edging and Containment: The Construction Detail That Matters
Containment is especially important for L. spicata, whose rhizomes can spread into adjacent turf or groundcover. UF/IFAS recommends using a bed surrounded by hardscape or an 18-inch-deep edging/root barrier. Treat this as a containment option, not a guarantee; monitor the boundary and confirm local recommendations.
For L. muscari, clumping does not mean no expansion. UF/IFAS notes basal suckering and a mature width of about 24 inches in its Florida assessment. Plan the bed for mature spread and maintenance, and check local ecological assessments for the project location.
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Rules for grading, drainage changes, retaining work, and public right-of-way vary by location. Check with the relevant local authority before work that changes grades or redirects runoff. The research sources do not establish a universal permit rule for liriope planting.
Before digging, check local utility-marking requirements and arrange utility locating where required. Planting and especially barrier installation can involve excavation; do not assume lines are at a safe depth.
When to DIY vs. When to Hire a Pro
A small planting may suit a capable DIYer if the site drains well and the work is limited to basic preparation and planting. The key is to identify the species, calculate quantity from the bed and spacing, avoid burying crowns, and provide establishment care.
Consider a contractor when the project involves drainage correction, grading, substantial turf removal, root barriers, or a large planting where layout and quantity errors would be costly. Request a site-specific scope and local material and labor pricing rather than relying on a generic per-square-foot figure.
Best Value
- Great for landscape edging plants and shade garden borders where ground coverage and greenery are needed year-round
- Use in foundation planting ideas for homes needing easy-care landscaping solutions for sun or shade conditions
- deal for decorative walkway border planting with vibrant green foliage and small summer blooms
- Ground cover plants for under trees and alongside patios offering uniform foliage and garden definition
- Shade tolerant landscaping plants with ornamental leaves used in pathways driveways and home garden spaces
Best Maintenance Plan for a Long-Lived Bed
Plan for establishment watering and weeding, then inspect the bed and its boundaries as plants grow. Cut old foliage back in late winter before new growth begins, with timing adjusted to local climate. Check drainage, remove affected plants when root rot is diagnosed, and monitor L. spicata containment.
The best installation matches the species to the site: clumping L. muscari is generally suited to controlled edging, while spreading L. spicata belongs only where spread is acceptable and containment can be monitored. Confirm regional guidance before specifying either species.
FAQ
Which liriope is best for edging?
L. muscari is generally the better choice for controlled edging because it is clump-forming and less aggressive than L. spicata, according to NC State Extension. It can still expand, so allow for mature width and check local guidance.
How far apart should you plant liriope?
Clemson Extension and NC State Extension advise about 12 inches for liriope. UF/IFAS gives 6–12 inches for L. spicata. Confirm species and desired coverage before choosing spacing.
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UF/IFAS suggests placing L. spicata in a bed surrounded by hardscape or using an 18-inch-deep edging/root barrier. Monitor the boundary, since this is a containment recommendation rather than a guarantee, and check local invasive-plant guidance.
How much does liriope installation cost?
The research sources do not provide current plant prices or an installed-cost range. Get local quotes based on species, stock size, quantity, site preparation, removal, edging or root barrier, delivery, labor, and establishment care.
When should you cut back liriope?
Cut old foliage in late winter before new growth starts, taking care not to damage the crown. Timing varies by climate; Clemson Extension gives late January for lower coastal South Carolina and mid-February for upstate South Carolina as local examples.
Is liriope invasive?
Risk depends on species and location. UF/IFAS does not recommend L. spicata in its Florida guidance, while assessments for L. muscari also vary regionally. Check current local extension and invasive-plant guidance before planting.
Does liriope need frequent watering after it is established?
NC State Extension says established L. muscari generally needs little supplemental irrigation, although site and weather matter. New plantings need water during establishment.
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