Camellias city garden red blossom red flowering shrub scarlet blossom Spring flowering shrub spring garden attractive beautiful bloom blooms bush camellia color colorful colors colour colourful colours conspicuous cultivars cultivated delicate-flowers evergreen evergreen-shrubs flora floral-displays flower flowering flowers foliage garden-plant hardy hedging-plant long-lasting-shrubs ornamental ornamental-plants petals pink pruning-friendly sasanqua shrubs species stamen- bouquet stamens Theaceae varieties yellow-stamens England garden green leaf quality red spring Sussex