Stylish Summer Garden Classics. As different categories of lilies have varying bloom times, it is quite possible to choose a selection of different ones that will keep you in flowers throughout summer. As an example, Asiatic lilies bloom first, followed by Trumpet Lilies and then the Orientals. Creating a flowering timeline of these three varieties will give you a sound base, after which you can have fun adding other lilies just for the love of doing so. Lilies like lots of sun and slightly acidic soil with good drainage so they do not stand in the water too long. Most are suitable in containers as well as in beds and borders and all make excellent cut flowers. Always choose large top bulbs for speedier results.