We're offering you a 3, 6 or 9 Penstemon Ice Cream Plants for £6.99, saving you up to 50% off Thompson and Morgan's's price of £13.99 (correct as of 16.03.2026).

Bring Lasting Colour to Your Garden with Penstemon 'Ice Cream Collection'

The Penstemon 'Ice Cream Collection' is a robust group of perennial flowering plants known for their tubular blooms and vibrant hues. Belonging to the Plantaginaceae family, these perennials are celebrated for their long flowering period—typically from late spring right through to the first frosts—making them a favourite among gardeners seeking continuous colour.

• Variety Mix: This collection includes three standout cultivars: the deep purple 'Blackberry™', the soft pink-and-white 'Strawberries & Cream', and the lively violet 'Juicy Grape'. Each brings unique tones and charm to beds, borders, or patio containers.
• Growth Habit: Penstemons form upright clumps reaching approximately 45–60cm (18–24in) in height. Their slender spikes attract bees and butterflies, supporting local pollinators.
• Flowering Period: Expect blooms from June through October, offering extended seasonal interest.

Growing Guide

• Soil: Prefers well-drained soil; tolerates a range of pH levels but performs best in neutral to slightly alkaline soils.
• Light: Plant in full sun for best flowering, though light partial shade is tolerated.
• Watering: Water regularly after planting until established; mature plants are drought-tolerant.
• Hardiness: Hardy throughout most of the UK (USDA zones 6–9).

Planting & Care Tips

• Planting Time: Best planted in spring after the risk of frost has passed.
• Pruning: Deadhead faded flowers to encourage further blooms. Cut back stems after flowering to maintain bushy growth.
• Feeding: Apply a general-purpose fertiliser in spring for optimal performance.

Design Ideas & Companion Plants

• Create bold drifts by mass planting along borders or blend with other sun-loving perennials such as Salvia, Coreopsis, or Echinacea for a wildlife-friendly display.
• The upright habit makes Penstemons ideal as mid-border highlights or in mixed cottage-style schemes.

FAQs

• When is the best time to plant Penstemon plug plants?
  The best time is spring, once the last frost has passed. This allows roots to establish before summer growth.
• How tall will these Penstemons grow?
  This collection typically reaches 45–60cm (18–24in) tall when mature.
• Do Penstemons need special care over winter?
  Mature plants are hardy. Mulch lightly in autumn and avoid waterlogged soils during cold months for best results.