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Grass · Easy

How to Grow Purple Fountain Grass

Pennisetum setaceum 'Rubrum'

Your complete guide to growing Purple Fountain Grass.

☀SunFull sun (6+ hours)
💧WaterLow — drought tolerant
🗺Zones8–11
📏Height3.5 feet
Purple Fountain Grass📷 Wikimedia Commons

When to Plant Purple Fountain Grass

Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.

ZoneStart IndoorsDirect SowHarvest
Zone 8 — March – May —
Zone 9 — February – April —
Zone 10 — January – March —
Zone 11 — January – February —

Companion Plants for Purple Fountain Grass

✓ Good companions

Black-eyed Susan

Shares similar growing conditions and blooms complement purple grass plumes

Coneflowers

Native perennials with similar sun and drainage needs, attract beneficial pollinators

Lavender

Both are drought-tolerant, deer-resistant, and create attractive textural contrast

Marigolds

Repel nematodes and aphids while adding complementary orange and yellow colors

Ornamental Kale

Cool-season annual that provides fall color contrast when grass is at peak beauty

Russian Sage

Drought-tolerant perennial with silvery foliage that highlights purple grass color

Salvia

Similar water and sun requirements, creates beautiful color contrast with purple spikes

Sedum

Drought-tolerant succulent that complements grass texture and requires similar low maintenance

✗ Keep away from

Black Walnut Trees

Produce juglone toxin that can stunt growth and cause yellowing of ornamental grasses

Impatiens

Require consistently moist soil and shade, opposite of purple fountain grass drought tolerance needs

Mint

Aggressive spreading nature can overwhelm and crowd out ornamental grass root systems

Notes from the garden

A greener inbox, occasionally.

Seasonal planting ideas, useful tips and a little inspiration. No weeds.