Veronica longifolia 39candied candle39 is a tidy upright herbaceous perennial bearing slender spikes of mauve flowers with prominent stamens flowering in late summer garden speedwell is highly attractive to bees and butterflies and the flowers are fantastic for cutting for a vase indoors great for adding vertical accents to perennial borders and cottage garden schemes veronica 39candied candle39 is hardy and easy to grow height 50cm 40203441 spread 30cm 401234