Japanese snowball Mary Milton A magnificent show of green/white and sometimes blush pink pompom like flowers in May shows why this is such a popular shrub for any garden. The slightly upright growth habit makes Mary Milton an eye catching shrub. Suitable for most gardens, though be sure to give it plenty of space so it can spread to its potential. Site: Tolerates some exposure, ideally shelteredSoil: Any well-drained soilPosition: Full sunSeason of Interest: Spring flowers, Autumn berriesHeight: 8ft (2.5m) Spread: 8ft (2.5m)