Bluebell Arboretum
Planting was started by the owners , Suzette and Robert Vernon ( a Royal Horticultural Society committee member and Chelsea Flower Show judge ) in 1992 on what was then a six acre ( 2 . 2 hectare ) meadow , just under 500 feet ( 150 metres ) above sea level . 
<triplet> Chelsea Flower Show <subj> Royal Horticultural Society <obj> organizer