I'm the first to admit that I don't necessarily like flowers planted in a row like a line of soldiers, however I have this long, narrow side yard that had limited options.
I already had planted holly and sabal palms, blue salvia and blue pumbago amongst other things in this area and I really wanted some tulips in the spring in this space. I decided to plant some species tulips in clumps of five and about a foot apart all the way down and along the edge of the limestone border. I think planting them this way turned out great!:
Here they are open:
These clusiana tulips will gradually naturalize and spread, so as time goes on they will look more natural in this space.