The Triplets Roof Gardens
Originally constructed in 1860-67, Gasholders Nos. 10, 11 and 12 were built for the storage of town gas for Pancras Gasworks, the largest gasworks in London. Restored by a specialist engineering firm in Yorkshire, the gasholders returned to King’s Cross, their new home being north of Regent’s Canal. Here the triplet frame has been re-erected around a series of apartment buildings and at the top of the buildings the roof gardens provide magnificent views over the canal, parks, and the city beyond..
Gasholder dwellers will have access to the communal rooftop garden atop one of the buildings, whose planting palette is by Chelsea Flower Show gold medallist Dan Pearson. Penthouse residents, meanwhile, will have their own private gardens above the other two buildings, also by Pearson.
Our works involved us planting 21 trees on the roofs, albeit trees with heights of only up to 2m such as Arbutus unedo, common name Strawberry tree, is a fabulous evergreen plant, native to the Mediterranean and parts of western Europe. The bark on a Strawberry tree is an attractive feature, peeling in long, narrow strips revealing the coppery orange colours underneath.
Additionally 1168 shrubs have been planted; species include Slavia officinalis Purpurascens, Salvia Raspberry Royale and Lavandula x intermedia 'Edelweiss. Along with shrubs over 1390 perennials were planted such as Erigeron karvinskianus Mexican fleabane and verbena bonariensis a tall perennial with erect, branching stems to 2m in height, bearing sparse, oblong leaves and large branched clusters of small, purple flowers from summer to autumn. We also planted over 460 Allium cristophii, common name Persian onion or Star of Persia bulbs too.
Part of the programme also required us to lay 773sq mtrs of iroko decking which our in-house carpenter installed.