Hydrangea macrophylla 'Mariesii Perfecta' (syn. 'Blue Wave')
75mm pot
* Deciduous shrub
* 2m h x 2m w
* Part shade prefered, full sun with protection from hot afternoon sun ok
* Lacecap flowers in summer, colour dependant on soil
* Frost tolerant but soft growth may be burnt off. That won't kill a mature plant but it will remove the flowering wood (as plant flowers on previous seasons growth). Therefore frost protection required 
* Moist, well drained soil
* Medium water needs