Many nurseries but also hobbyists are using shade-cloth to protect their nursery-succulents from sun-burn damage. Shade also has the advantage of less water evaporation.
Whatever colour shade-cloth one uses it always has the disadvantage of ‘horizon-pollution. That’s why Soekershof Walkabout started with a three year program to get rid of all shade-nets and replace this with natural shade. In another blogsite you can read how.
Natural shade by (caudiciform-) climbers has the disadvantage that it takes a few years before the area is covered and that it needs some additional cleaning (falling leaves -advantage: compost-). The most attractive advantage is a lively ‘shade-cloth’ with, in season(s), colourfull flowers.