How to Grow Lomandra
iNaturalist
Lomandra
Lomandra longifolia
grassLomandra is a hardy, evergreen ornamental grass native to Australia, known for its long, strappy green foliage and dense clumping habit. It produces small, fragrant yellow flowers in spring and is extremely tolerant of poor soil, drought, and challenging conditions. This low-maintenance plant is popular in contemporary gardens, xeriscaping, and as a structural landscape element.
When should you plant Lomandra in your zone?
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Example Lomandra timeline · Pittsburgh, PA (Zone 6b)
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Plant Lomandra
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Lomandra
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Lomandra dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in USDA zones 8b-11; tolerates zone 8a with protection
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Get my Lomandra timeline →Growth Stages
Establishment
3-6 monthsYoung plant with sparse foliage, developing root system
Water regularly (2-3 times weekly) to promote deep rooting. Mulch lightly around base. Avoid fertilizer; allow roots to establish naturally.
Vegetative Growth
6-18 monthsPlant develops fuller clumps of long, strappy green leaves forming dense mounds
Maintain consistent moisture during this phase. No fertilizer needed; deadhead faded flowers if desired for neatness. Minimal pruning required.
Flowering
4-8 weeksSmall fragrant, pale yellow flowers appear on thin spikes rising above foliage in spring (August-September in Southern Hemisphere)
Allow flowers to bloom for ornamental interest and fragrance. Flowers attract pollinators and birds. No special care needed during bloom.
Seed Development
8-12 weeksFlowers fade to small berry-like fruits containing viable seeds; foliage remains dense year-round
Seeds naturally disperse or can be collected for propagation. Leave spent flower stems for wildlife habitat if desired.
Mature
Indefinite (long-lived perennial)Fully established plant with dense, mounding habit and minimal maintenance requirements
Water only during drought stress. Require minimal pruning. Divide clumps every 4-5 years if desired to rejuvenate or propagate.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Usually minor damage; remove affected leaves; use neem oil if severe
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Spray with horticultural oil in early morning or late evening; inspect regularly
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Improve air circulation by thinning dense clumps; avoid overhead watering; apply fungicide if widespread
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Ensure excellent drainage; reduce watering frequency; do not mulch close to crown
Uses
Ornamental Landscape Structure
HouseholdLomandra's striking form, year-round foliage, and low maintenance make it ideal for contemporary gardens, borders, slopes, and xeriscaping. Its architectural shape provides visual contrast and defines garden spaces without frequent pruning. [source]
Pollinator and Bird Habitat
WildlifeFragrant spring flowers attract bees, butterflies, and other pollinators. The dense foliage provides shelter for birds and small fauna, while developing seeds offer food sources in summer and fall. [source]
Traditional Aboriginal Food Plant
CulinaryIndigenous Australians harvested Lomandra seeds and rhizomes as food sources for thousands of years. Seeds can be ground into flour; rhizomes were eaten raw or cooked. [source]
Basket Weaving and Fiber Arts
CraftLomandra leaves have been traditionally used by Indigenous Australians and fiber artists to create baskets, mats, and woven goods. The long, flexible leaves dry well and retain color for crafting. [source]
Traditional Aboriginal Medicine
MedicinalVarious Lomandra species have been used in traditional Aboriginal medicine to treat wounds and ailments. The plant contains compounds with potential antimicrobial and anti-inflammatory properties. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Lomandra is not typically harvested for food. For ornamental use, deadhead spent flowers to maintain neatness or leave for seed collection. Cut back damaged foliage only as needed; allow most dead leaves to remain as they protect the plant. Divide clumps in spring (after flowering) by cutting entire plant back to 6 inches and digging out sections with intact roots.
Fun Facts
- 🌱 Lomandra has been used by Indigenous Australians for over 10,000 years and is called 'mat rush' due to its traditional use in weaving baskets and mats.
- 🌱 The plant is so drought and salt tolerant that it thrives in harsh coastal environments, poor urban soils, and areas with saline groundwater where most plants cannot survive.
- 🌱 Lomandra's scientific name 'longifolia' means 'long-leaved,' referring to its striking foliage that can grow 2-3 feet long and persist year-round in Mediterranean and warm climates.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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