Sasanqua camellias form a dense evergreen hedge 2 to 3 metres tall in three to five years. When selecting camellias for hedging, choose named varieties that grow to the height and width required and space them 50 to 90 centimetres apart. Install a drip or micro-spray irrigation system along the length of the hedge to aid watering. Use stakes to support the new plants. The stakes can be removed as the trunk thickens after the first year.

One of the fastest-growing varieties for a hedge is ‘Plantation Pink’, which has single pink flowers. It is also suited to espalier.

Other reliable choices for tall hedges include ‘Jennifer Susan’ (pale pink double flowers), ‘Paradise Emily’ (pink semi-double flowers), ‘Paradise Jennifer’ (white semi-double flowers edged with pink) and ‘Pure Silk’ (white informal-double flowers flushed with pink). All grow to around 3 to 4 metres high.

For a low-growing one-metre-high hedge, select ‘Paradise Little Liane’ (white double flowers), ‘Paradise Sylvia’ (crimson-red single flowers) or another dwarf camellia.

source https://www.flowerpower.com.au/gardening/sasanqua-camellias/