Meet the perfect plants for rain and drought, these will flower each year for five months! Strikingly eyecatching with its pink bells with white throats which are carried by semi-evergreen foilage. These make such a popular hardy choice that can easily be a showstopper in displays or on the patio. These also have excellent slug resistance! How to grow Grow penstemon in a sunny or semi shaded position on fertile, well drained soil. Penstemons can tolerate dry soils once established but dislike heavy soils that are particularly cold and wet in winter. Improve heavy soils by adding plenty of coarse grit prior to planting. Feed and water penstemons regularly until they are fully established. Once established they are reasonably tolerant of drought and will require little maintenance. Deadhead faded penstemon flowers to maintain the plant's vigour and encourage further blooms to be produced. In cold areas apply a dry mulch of bark chips of straw around the crown of each plant in autumn. Lea