DROUGHT-BUSTING BEAUTY! These doughty penstemons will thrive in even the driest conditions Nigel Colborn says in 70 years of gardening he's never seen such a strange year UK-based gardening expert ...

A striking penstemon with vibrant silvery-blue foliage and broad iridescent lavender-blue flowers in summer. - Penstemon pinifolius. A native of the Southwest, this fine-leaved penstemon is an ...