Penstemon digitalis 'Onyx and Pearls'
Botanical profile

Penstemon digitalis 'Onyx and Pearls'

Latin name
Penstemon 'Onyx and Pearls'
Common name
Penstemon 'Onyx and Pearls'
Type
Perennial
Family
Plantaginaceae

Beautiful contrast between the very dark foliage and the lavender tubular flowers with white interiors. This plant tolerates heat and humidity well but is also very cold-resistant. Regularly prune faded flowers to renew them.

Not recommended for pets
Not recommended for pets

Pets

Pollinators
Attracts or supports pollinating insects

Pollinators

Butterflies
Plants that attract butterflies

Butterflies

Hummingbirds
Flowers that attract hummingbirds

Hummingbirds

Deer
Less attractive or generally tolerated by deer

Deer

Care guide

Growing conditions

Light, soil, water and hardiness

Hardiness zone
Zone 3
Exposure
Sun
Watering
Moderate
Fertilization
Fertilizer for flowering
Soil type
Well drained
Minimum temperature
'-40°C
Plant appearance

Blooming, foliage and shape

Blooming period
June-August
Flower color
White
Foliage color
Green
Shape
Erected
Garden structure

Size and growth

Height
3.5 feet (1.07 m)
Width
3.5 feet (1.07 m)
Growth rate
Fast

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.

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Hardy perennials

Hardy perennials for colourful, long-lasting gardens

Hardy perennials are essential plants for creating colourful, durable and easy-care gardens. Whether you are looking for perennials online, full sun perennials, shade perennials, partial shade plants, dry soil perennials or easy-care perennials, they offer reliable options for many garden styles. Some varieties are also valued as long-blooming perennials, pollinator plants, hummingbird plants or deer-resistant perennials, making them useful for flower beds, borders and naturalized plantings.