In the open garden plants blue flowers and the deep blue of the small number of florescences, in the summer, with very hot Pinks, purples, to exceed 5%.

• 园林植物土闭蓝色的不攒不众，而且深蓝的尤众，闭不攒期众在冬季，，刚好用寒色来摈除炽烈。