Tiger grass (Thysanolaena maxima) is a tall, clumping, bamboo-like ornamental grass with arching leaves and feathery flower plumes. It suits warm, humid, part-shaded Sydney gardens where you want a fast, soft screen, but it is frost-tender and needs room to spread.
This guide explains what the plant is, where to put it, how to plant and cut it back, and how it compares with other options in our ground cover plants guide.
Key points
- This is a large clumping grass, not a lawn grass, so you plant it as a feature or screen rather than mowing it.
- It prefers warm, sheltered, part-shaded spots with moist, well-drained soil and dislikes hard frost, so western suburbs and the Blue Mountains are riskier.
- Mature size varies with conditions (indicative — check the plant label), so allow generous space from fences, paths and drains.
- A Sydney gardener typically charges about $75 per hour (range $52 to $115) including GST for cutting back and tidying clumps, as at October 2026.
Tiger grass at a glance
This table sums up the plant before you decide whether it fits your garden.
| Feature | Detail | Why it matters |
|---|---|---|
| Botanical name | Thysanolaena maxima | Use the botanical name when you shop, because “tiger grass” and “broom grass” are applied to different plants. |
| Type | Evergreen clumping grass, not native to Australia | It behaves like a small bamboo, forming a dense clump rather than creeping across the ground. |
| Mature size | Tall and broad (indicative — check the plant label) | Plan for a big clump; planting too close to a wall or path is the most common regret. |
| Sun | Part shade to filtered sun | Leaves can scorch in hot, reflected western sun, such as against a brick wall. |
| Soil and water | Moist, well-drained, enriched soil | Sandy coastal soil dries out fast, so mulch well and water within Water Wise hours. |
| Frost | Tender | Frost burns leaves in cold western Sydney pockets, though clumps often regrow from the base in spring. |
Thysanolaena maxima tiger grass: what it looks like
Knowing the identifying features helps you buy the right plant and spot it in neighbours’ gardens.
- Leaves are broad, arching and bright green, with a ribbed look that resembles bamboo or a small cane rather than lawn grass.
- Flower heads appear as soft, airy plumes held above the foliage, adding movement in a breeze in late summer and autumn (indicative — check the plant label).
- The plant grows in tight clumps from the base, so it doesn’t send out runners like kikuyu or couch.
- New growth emerges from the centre of the clump, which is why cutting the old leaves to the base refreshes it.
- In shade it grows taller and softer; in strong sun the leaves are shorter and may bleach or brown at the tips.
- Always confirm the botanical name on the nursery tag, because several unrelated plants are sold as tiger grass or broom grass.
Where tiger grass grows best in Sydney
Placement decides whether it thrives or sulks, so match the plant to your aspect and soil.
- Part-shaded courtyards in the Inner West: warmth from brick walls and shelter from wind suit it, but keep it clear of drains and paving edges.
- Along a side boundary on the Northern Beaches: it makes a soft, quick screen, though salt wind can scorch exposed leaves on the beachfront side.
- Heavy clay in western Sydney: improve drainage with compost before planting, because wet feet in winter rot the base.
- Under established trees: plant at the edge of the canopy, not against the trunk, and see our shade-loving ground covers guide for lower-growing partners.
- Large pots: a big container works in a cold pocket because you can move it under cover when frost is forecast.
- Frosty sites in the Blue Mountains or Southern Highlands: skip it unless you can offer overhead cover and shelter.
How to plant tiger grass
Plant in spring or early summer so roots establish before cooler weather arrives.
- Choose a position with part shade and shelter, then mark the clump’s full mature width so you leave room on all sides.
- Dig a hole wider than the pot and about the same depth, then loosen the sides so roots can spread.
- Mix compost through clay or sand to improve moisture holding and drainage before you backfill.
- Remove the plant from the pot, tease out circling roots gently and set it so the crown sits level with the soil.
- Backfill, firm lightly and water in slowly, using a trigger nozzle or drip line before 10 am or after 4 pm.
- Spread mulch around the clump, keeping it clear of the base, and water regularly through the first summer.
- Feed with a registered slow-release fertiliser as the label directs, and keep children and pets off treated soil until the label says it is safe.
Tiger grass care through the year
Once established, the plant needs little more than water, mulch and an annual tidy.
| Task | When | How |
|---|---|---|
| Watering | Spring to autumn | Soak deeply and less often; drip or smart irrigation may run between 10 am and 4 pm, and hand-held hoses need a trigger nozzle. |
| Mulching | Spring | Top up organic mulch to hold moisture and suppress weeds, keeping it off the stems. |
| Feeding | Spring | Use a registered fertiliser exactly as the label directs; never mix products or add extra. |
| Cutting back | Late winter or early spring | Cut tired or frost-burned leaves to the base with sharp loppers or shears, wearing gloves and eye protection. |
| Dividing | Spring | Split overgrown clumps with a sharp spade and replant divisions at the same depth. |
| Frost protection | Winter | Cover young plants on cold nights and leave frosted leaves until spring because they shield the crown. |
If you use a powered hedge trimmer, keep to NSW noise hours: 7 am to 8 pm on weekdays and Saturdays, and 8 am to 8 pm on Sundays and public holidays.
Tiger grass vs other grass plants
Tiger grass sits at the large, soft end of ornamental grasses, so compare it with similar options before you buy.
| Plant | Habit | Best for |
|---|---|---|
| This plant | Tall, arching clump | Screens and feature plantings in warm, part-shaded spots |
| Other ornamental grasses (see our grass plants guide) | Varies from tufts to tall clumps | Borders, pots and mass planting |
| Star jasmine (see our star jasmine ground cover guide) | Low, spreading and scented | Covering the ground beneath taller plants |
| Lawn grasses | Low and mown regularly | Walkable areas, which tiger grass is not |
Tiger grass maintenance cost in Sydney
Prices below include GST and are Sydney rates as at October 2026; actual quotes depend on clump size and access.
| Job | Low | Typical | High |
|---|---|---|---|
| Gardener, per hour | $52 | $75 | $115 |
| Weed removal, per hour | $57 | $75 | $105 |
| Garden clean-up, half day | $170 | $290 | $460 |
| Garden clean-up, full day | $320 | $520 | $805 |
| Small hedge trimming, per job | $69 | $115 | $205 |
Common mistakes to avoid
- Planting a large clump too close to a fence, path or drain, then cutting it hard every year to keep it in bounds.
- Choosing a hot, dry, full-sun site, where leaves scorch and the plant sulks all summer.
- Skipping mulch and deep watering on sandy soil, which leaves brown leaf tips by midsummer.
- Cutting back in the middle of winter, which exposes the crown to frost damage.
- Ignoring local weed rules: check your council’s and state’s weed lists before planting any vigorous, seeding ornamental grass near bushland.
- Cutting or dividing a clump without gloves, long sleeves and eye protection, because stiff stems and dust fly about when you work close to the base.
FAQ: tiger grass
What is Thysanolaena maxima tiger grass?
Thysanolaena maxima is a tall, clumping ornamental grass from tropical and subtropical Asia, sold in Australia as tiger grass or broom grass. It forms a dense bamboo-like clump with arching leaves and feathery plumes. It is grown as a screen or feature plant rather than as a lawn.
Is tiger grass invasive?
It forms a clump rather than creeping runners, but any vigorous grass can seed or spread near bushland. Check your council’s and state’s weed information before planting, particularly on bush-edge blocks. If you plan to remove a clump, cut it back and dig out the base rather than leaving the roots.
Does tiger grass grow in shade?
Yes, it usually does best in part shade or filtered light. Deep shade makes it leggy, while hot full sun scorches the leaves. Under trees, plant at the canopy edge, enrich the soil and keep water up in summer so the clump isn’t competing with tree roots for moisture.
When should you cut back tiger grass?
Late winter or early spring is the usual time, once the worst of the frost has passed. Cut tired or frosted leaves to the base with sharp, clean tools, wearing gloves and eye protection. New growth then comes from the crown. Avoid heavy cutting in midsummer, when the plant is stressed.
Getting your garden beds tidied in Sydney
If a big clump has outgrown its spot, we can cut it back, divide it and haul away the green waste as part of a garden clean-up. Tell us the size of the clump and access, then book garden maintenance in Sydney and we’ll quote it in writing.
