Lomandra

Lomandra longifolia

A tough, mounding tussock of long leaves — it shrugs off dry ground and resents ground that stays wet.

Light Full sun
Height 1 m
Spread 3 ft 3 in
Spacing 100 cm
Root depth 8–24 in
Type
Grass · Perennial
Botanical family
Mixed / other
Foliage color
Green · Gold and chartreuse
Sunlight
Full sun
Feeding
Gentle all-organic
Frost tolerant
Yes
Flowering
May
  • Mar–Apr Bud Break
  • Apr–May Spring Growth
  • May–Jul Flowering
  • Jul–Dec Growing
  • Dec–Dec Winter Dormancy
  • Jan–Mar Winter Dormancy
Plant spacing
3 ft 3 in
In-row spacing
3 ft 3 in
Between rows
4 ft 1 in
Square-foot density
Not suited to SFG
Root system
A dense fibrous mat
Working depth
8–24 in
Can reach
5 ft down where the soil allows
Spread
3.5–6.5 ft across, about 1–2× the width of the plant
Shallowest pot
12 in of soil

Thousands of fine roots knit the top of the soil into a turf, which is what holds a bank together and what makes an established clump so hard to lift. Prairie grasses send a few roots far below the mat as well.

The habit is Lomandra’s own; the figures are what that habit usually comes to at this size, not a measurement of this species. Roots follow the soil either way: a compacted pan, a high water table or heavy clay stops them well short of any of it, and deep open ground lets them go further.