Botanical profile

Pennisetum 'Rubrum' (set.)

Latin name
Pennisetum 'Rubrum' (set.)
Common name
Purple Fountain Grass
Type
Annual ornamental grass
Family
Poaceae

Pennisetum setaceum 'Rubrum', commonly known as purple fountain grass, is a spectacular ornamental grass that commands attention with its rich burgundy-red foliage and arching, silky purple flower spikes. Its elegant, splayed, tufted shape adds texture, movement, and color to landscapes, whether in beds, pots, or borders. This easy-care grass is popular in both contemporary and rustic settings. It is often used to create striking contrasts in borders, particularly in combination with light- or silver-flowering perennials.

Care guide

Growing conditions

Light, soil, water and hardiness

Hardiness zone
Zone 9 to 11 (grown as an annual in Quebec)
Exposure
Sun
Watering
Moderate, drought tolerant once established
Humidity
Average, avoid soggy soils
Fertilization
Light addition of compost or balanced fertilizer in spring
Soil type
Well-drained, light, sandy or loamy soil
Minimum temperature
'-1°C (dies in frost, not hardy in Quebec)
Plant appearance

Blooming, foliage and shape

Blooming period
July-October
Flower color
Purple-pink ears
Foliage color
Dark purple to burgundy, with reddish highlights that are particularly vibrant in full sunlight.
Garden structure

Size and growth

Height
36" (91.5 cm)
Width
24" (61.0 cm)
Growth rate
Fast
Not recommended for pets
Not recommended for pets

Pets

Pollinators
Attracts or supports pollinating insects

Pollinators

Butterflies
Plants that attract butterflies

Butterflies

Deer
Less attractive or generally tolerated by deer

Deer

The availability of our plants varies depending on arrivals, seasons, nursery production and supplier availability. Some varieties may be offered for a limited time only, depending on their natural cycle or current stock. These plant profiles are designed to guide and inspire you when choosing plants for the garden, landscaping projects, containers or long-lasting outdoor arrangements.