African Design Magazine March 2017 | Page 34

LANDSCAPING SALI Awards 2016

34 africandesignmagazine . com

next to smaller houses are smaller . Acacia ( Vachellia ) galpinii ( Apiesdoring ) is planted at the bulky gatehouse . The latter species , although not locally indigenous ( but grows in the wild very nearby ) is a tall tree that was needed alongside the large building . The main trees and shrubs that were the first to be nursery grown were planted first to provide a canopy of shade and a microclimate for the understorey plantings , of which the locally indigenous Asparagus virgatus ( Broom Asparagus ) with its tiny greenish-white star-like flowers and small red berries has been used prolifically . Shade loving grasses such as Setaria megaphylla ( Broad-leaved Bristle Grass ) have also been used under trees .”
Roof garden of private house at Steyn City . The flat roof is raw concrete clad in standard waterproofing , a layer of geotextile , 100mm of gravel , a second layer of geotextile , 500mm of soil medium and drainage elements . The basic planting for this grassy roof garden was a veldgrass mix with plantings of Sansevieria ( Mother-in-law ’ s-tongue ) and small aloe species .
Viljoen commented that virtually all the plants used on site were grown on site . Some of the large trees , considered necessary at the time to make some immediate impact , were ex-open ground trees . He added , however , that the policy of the estate was presently against the use of such trees harvested from open ground , as it has been observed that plants that have been nurtured in bags from seed , using the best possible growing medium , are healthier and have grown faster when planted out . These nursery