Where to even start with this one. It's one of my all-time favorites. 
 
Owl clover looks i bit like something out of Dr. Suess. I love the cotton candy colored bracts and yellow flowers, and with the inconspicuous leaves, a patch of owl clover looks a bit like a family of lollipops, or rock candy. JUST LOOK AT THEM! They are short and cute, perfect for the edge of a walkway or a sunny little rock garden.
 
Owl clover is an annual, and grows in open sunny meadows where there isn't a ton of competing vegetation. They need very little water, although they will take advantage of extra irrigation to prolong bloom (to a point...don't flood them). They like sandy or rocky soil that drains well. 
 
This is my first year offering these, and I'm not sure how well they reseed themselves. I've had them come up from seed I've scattered in open areas, so I think they'll do fine. As with clarkia, woolly plantain, and beeplant, this annual is going to want some clear space around it (maybe with some light gravel mulch) to promote seed establishment. 
 
Good plant companions include: cushion buckwheat, woolly groundsel, cock's comb catseye, prairie junegrass, stiff-leaf penstemon and alberta penstemon.