This upright perennial produces tall blue flower spikes above clumps of liquorice scented foliage your garden bees and butterflies will flock to these colourful nectar45rich plants being hardy perennials they will produce fresh new growth every spring followed by a plethora of gorgeous summer flowers height 90cm 40353441 spread 30cm 40123441 supplied as large plug plantsculinary information add both flowers and leaves to cakes or whipping cream for a hint of an