What's happening News Walled Garden Now Open The Walled Garden at Marks Hall is now open for the Spring, Summer and Autumn seasons in 2018. With its striking contours and shapes, it is a unique and special place and well worth a visit next time you are in the Arboretum. The imposing wall was built in the seventeenth century with bricks made on the estate. The garden is unusual because there is no fourth wall and the site instead slopes down to the lake, which forms the boundary. With its own micro-climate it would have been used to supply the Mansion House with fruit, vegetables and beautiful blooms. Photographic evidence of the garden during Thomas Phillips Price's time suggests there had always been an aesthetic approach to planting. After the death of Price the Walled Garden was neglected and became overgrown with a tangle of weeds. It was re-landscaped and reopened in 2003 with a striking contemporary design created by Brita von Schoenaich. The garden is laid out in a series of five separate 'rooms' which encourage the visitor to progress through these cohesive spaces and finish at the slate pool.