Asiatic lilies are the most common (at least in my area) type of lily. They are quite unfussy and will return and spread from year to year if given a sunny spot and reasonably decent soil. They are the earliest lily to bloom - late June in my area, and are relatively short (usually 2-3 feet, depending on the cultivar). They common in a huge array of colors, including bright and dark oranges and reds.
|Asiatic lily - dark red|
LA hybrid lilies (Longiflorum-Asiatic hybrids)
|LA hybrid lily 'Golden Tycoon'|
|Oriental lily 'Acapulco'|
|Oriental lily 'Time Out'|
I have read that Oriental lilies prefer acidic soil, but my soil is quite alkaline and they return year after year for me with no problem. No lily will tolerate poor drainage, so I do amend my heavy soil with compost, of course.
|Martagon lily 'Mrs. R. O. Backhouse'|
|Martagon lily growing among hostas at Olbrich Gardens|