Penstemon 'Midnight'
Ever-reliable and hardy in most conditions, penstemons are invaluable for their long flowering and semi-evergreen foliage in the garden. 'Midnight' has striking, deep velvet-purple trumpet, shaped flowers on self-supporting upright stems that glow in the evening light of summer. Its deep green linear leaves and purple flowers contrast sharply with the grey foliage. Water regularly to promote vigorous flowering.
Drought-tolerant once established, penstemons are easy care perennials suitable for most conditions. Plant in full sun in an enriched, free-draining soil. Water regularly during establishment and extended dry periods for improved flowering and performance. Prune back to a low mound after flowering to maintain a compact habit.