Keep perennials performing
AFTER six years of culling, planting and renovating, our borders are starting to become a realisation of the colourful combinations we originally imagined. Low-growing perennials interspersed with bedding plants provide a carpet of colour topped by lanky scabious and Verbena bonariensis , whose flowers seem to float above the beds. I am particularly thrilled that some freesias planted earlier in the year are flourishing, their signature scent and glossy petals bringing something more exotic to the party. Perennials come into their own in summer, and as a whole are some of the most easy-going plants in the garden. Apart from tender types such as pelargoniums and gazanias that may require lifting and storing through winter, most can be left alone and will perform throughout the summer. They will be at their best if…