Matthiola incana - White Perennial Stock
This is a magnificent perennial stock that is a must-have! In its first season it produces upright, fairly dense growth. Pure white, sweetly-scented, shimmery flowers are produced over a very long period in the second year or third year. Cut back after flowering to help retain vigour. Full sun, well-drained soil (detests wet feet). 45-60x45cm approximately.