White Pampas Grass

Cortaderia selloana

Poaceae · grass grasslike · introduced

Last updated May 24, 2026

Quick Facts

Height

9 ft

Spread

4-6 ft

Growth Rate

Fast

Light

Full Sun

Soil

Adaptable

Water

Moderate

Hardiness

Zones 7a–9b

Bloom Time

August to February

Origin

SOUTHERN AMERICA: Brazil (Paraná, Rio de Janeiro

Phenological Calendar

View full calendar (8 stages)

Stage	Typical Window	What to Look For
Bud break BBCH 07	May 15-Jun 15	Buds swelling and beginning to open; first green tissue visible
Leaf emergence BBCH 11	Jun 1-Jul 1	First leaves fully unfurled on new growth
Bloom start BBCH 61	Jul 1-Jul 31	First open flowers visible; flowers yellow
Bloom end / petal fall BBCH 69	Jul 15-Aug 15	Last petals falling; flower structures fading
Fruit/seed development BBCH 71	Jun 1-Aug 31	Fruit or seed structures forming; fruit color: white
Fruit/seed maturity BBCH 85	Sep 1-Nov 30	Fruit fully colored and ripened; seed dispersal may begin
Fall color / leaf senescence BBCH 93	Oct 1-Nov 15	Leaves changing color; fall display beginning
Dormancy BBCH 97	Nov 15-Feb 28	Leafless; no active growth; dormant buds set

Cultivars (5)

'Argenteum'

Silver Pampas Grass

'Gold Band'

Gold Variegated Pampas Grass

'Icalma'

White Pampas Grass

'Pumila'

Dwarf Pampas Grass

'Rosea'

Pink Pampas Grass

Data Maturity

Baseline Extension data. Expert review underway.