Penstemon ’Electric Blue’

🌿 Penstemon 'Electric Blue'

Penstemon 'Electric Blue' lives up to its name with dazzling, true-blue flowers that light up the garden from early summer through autumn. This compact, clump-forming perennial is prized for its bold colour, neat habit, and drought tolerance — making it a fantastic choice for hot, sunny borders, gravel planting, and pollinator-friendly designs.

Specifications:

• Height: 30–40cm

• Spread: 30–40cm

• Flowering: June to September ☀️🍂

• Position: Full sun

• Soil: Well-drained; thrives in sandy, stony, or chalky soils

🌿 Note for Isle of Wight planting:
Electric Blue is perfectly suited to the island’s bright, free-draining gardens and performs especially well in coastal conditions. It loves the sun and benefits from being planted in sheltered spots with good airflow. In lighter soils, little input is needed beyond occasional deadheading to prolong its vivid show.

🌿 Ideal Companion Plants for Penstemon 'Electric Blue' (from your Green Standard catalogue):

1. Achillea millefolium 'Summer Fruits Lemon'
The soft yellow tones create a beautiful contrast with the electric blue blooms, offering a warm–cool colour dynamic.

2. Salvia 'Caradonna'
Deep purple spires bring elegant height behind Penstemon’s low mound and intensify the surrounding palette.

3. Erigeron karvinskianus
Daisy-like flowers gently spill around the base, softening edges and extending the flowering season.

4. Pennisetum orientale 'Flamingo'
Fine, arching grass plumes provide movement and texture, balancing the punchy colour of Penstemon.

5. Geranium 'Rozanne'
Trailing violet blooms echo the blue tones and offer reliable groundcover from summer into autumn.

🌟 The Green Standard Tip:
Try planting Penstemon 'Electric Blue' en masse along the front of sunny borders or in gravel gardens for maximum colour impact. It’s also ideal for pots, rockeries, and pollinator-rich designs.