An award-winning, hardy penstemon bearing slender spires of deep wine-red tubular flowers over a long season. One of the toughest beardtongues, loved by bees and nectar-feeding birds.
At a glance
- Plant type: Perennial
- Mature size: 70 cm H × 50 cm W
- Aspect: full sun and part shade or morning sun
- Water: happy on low water
- Frost: hardy
- Maintenance: low maintenance
- Origin: Exotic
About Garnet Penstemon
Penstemon 'Garnet' is a moderate-growing perennial in the Plantaginaceae family. It reaches around 70 cm tall and 50 cm wide at maturity, with evergreen foliage. Red and pink flowers appear for much of the year.
Where to grow Garnet Penstemon
Garnet Penstemon suits cool-temperate, warm-temperate and Mediterranean climates and grows best in full sun and part shade or morning sun. It is frost hardy and shrugs off cold winters. It also is a genuinely water-wise choice and is an award-winning selection.
Soil & planting
Garnet Penstemon does best in free-draining soil. Dig in plenty of compost before planting, water in well, and mulch to keep roots cool.
Watering & feeding
Garnet Penstemon is happy on low water, so once its roots are down it needs little supplementary water. A feed in spring with a balanced fertiliser keeps growth strong. In its first year, water deeply once or twice a week to settle the roots in, then taper off as it establishes.
Pruning & care
Prune Garnet Penstemon after flowering to keep it compact and encourage the next flush of blooms. Overall it is low maintenance.
Using Garnet Penstemon in the garden
Garnet Penstemon earns its place for feeding bees and pollinators, drawing nectar-feeding birds into the garden, cut flowers for the vase and a feature or specimen planting.
Companion planting & design
For a cohesive, low-care bed, pair Garnet Penstemon with other plants that enjoy the same happy on low water and cool-temperate climate. Group three or five together for impact rather than dotting single plants through the garden.
Good to know
It is regarded as non-toxic and pet-safe.
Buying Garnet Penstemon
Plant Sale lists Garnet Penstemon as potted plants. Stock isn't live yet — register your interest using the panel above and we'll email you the moment it is available.