February and march can be very flat months in the garden but a display of heathers will nicely fill the gap in the season until the spring flowers bulbs and shrubs start to come in erica x darleyensis 39white perfection39 is clothed with pristine white flowers that pollinating insects will love at a time of the year when nectar is hard to find an rhs agm award winner 39white perfection39 is an evergreen with bright green foliage and is a neat bushy shrub that will act as good g