It39s a sad day when your summer verbena succumb to the cold of autumn but that39s a thing of the past with the verbena 39endurascape39 collection these take temperatures of 4510c through winter to return to full health as things warm up in spring simply cut the plants back in late winter before spring growth kicks in and your plants will reward you with masses of early summer colour we can39t pick a favourite between blue red lavender and white blush so we39re offer