Arrowwood viburnum, viburnum dentatum, is a host plant for 104 species of lepidoptera (moth and butterfly caterpillars - the primary food for more than 90% of our nesting birds). VD has a medium growth rate and reaches 6-10 feet tall and just as wide. Great for forming hedges. Prefers full sun to part shade and tolerates heavy clay soil and proximity to walnut trees. Prolific white flowers appear in May-June, supporting butterflies and pollinators, giving way to abundant, showy fruits that are highly attractive to birds. Viburnum are monoecious, meaning they are self-pollinating, having both male and female flowers, however they do require differing genetics to produce berries.