Grass · Poaceae family
Mexican feather grass
Nassella tenuissima
In short a 10-second read
spacing 11¾ in
Where to plant and how much to water
Sun, soil and water.
It grows best in full sun to part shade, in dry to average soil.
Sun
Soil
Watering
Frost
How much space it takes
Mature size.
The mature plant next to a person (69 in).
Plant 11¾ in apart.
Reaches maturity in about 2–5 years. The final size depends on the cultivar and the spot — we give the range from smallest to largest.
Calendar
Through the year.
Typical for a temperate climate (four seasons). The line shows the current month.
The year at a glance
Planting
container plant: April–May
What to plant now (April) full list in April (323) →What to plant now (May) full list in May (185) →
Feeding
Nutrition.
Pests and diseases
Common problems and what to do.
The most common problems in Central Europe. Protection is listed from the gentlest option.
No serious pests or diseases
Generally pest-free and disease-free.
Sources (1)
What to combine it with
Same needs, different flowering.
They share the same sun and soil and flower in other months — so the bed flowers for longer.
Frequently asked
Quick answers.
Does Mexican feather grass tolerate shade?
It tolerates part shade (3–6 hours of sun), but not full shade.
How much space does Mexican feather grass need?
At maturity 11¾ in–1 ft 11⅝ in wide and 11¾ in–1 ft 11⅝ in tall; recommended spacing 11¾ in.
Sources (22) Checked 24 October 2026
- api.gbif.org 2 3
- missouribotanicalgarden.org
- plants.ces.ncsu.edu
- pladias.cz
- gd.eppo.int
- pollen.lu
- allergieinformationsdienst.de
- gardenersworld.com
- rhs.org.uk 2 3
- yardandgarden.extension.iastate.edu
- lwg.bayern.de
- Invasive plant lists — this species is not on them: EASIN, EU, Slovakia, Czechia, Germany, Poland, Denmark
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Uses