Swap wedding bells for a quieter but undeniably prettier variety by planting Penstemon 'Pensham Wedding Day'. This hardy perennial's white, bell-shaped flowers grow on elegant, upright spikes that rise above its semi-evergreen foliage from June to October. What's more, the plant is considerably less upset by rain than the average beautiful bride. In fact, it can tolerate most weathers, as Pensham Penstemons are bred to survive in cooler climates. Height: 75cm (2'6); Spread: 60cm (2'0).