Spiraea Tor Popular small shrub forming a dense rounded dome. Spiraea betulifolia Tor has attractive birch-like, toothed, deep green leaves. Flattened clusters of white flowers appear from May to July. Good autumn foliage colours with shades of orange, red and purple. Good addition to any low maintenance garden. Site: Needs some shelterPosition: Full sun, dappled shade Soil: Well drained, moist, Neutral to Acid, Seasons of interest: Spring flowers, Autumn colourHardiness: HardyHeight: 3ft (1m) Spread: 3ft (1m)