Living in Clover

To replace the annual rye--which will die out as soon as the mercury (and/or Light-Emitting-Diode digital number) rises above 80 degrees, we are thinking of planting a clover lawn this first year in the Butterfly Garden.
Clover fixes nitrogen in the soil and attracts beneficial insects, thus improving the soil's longterm health and fertility. It is also an important food for certain butterfly larvae. There are several forms of white clover (trifolium repens) that form beautiful, green, low-growing, carpet-like groundcovers.
Plus kids love to make clover chains.
Wow!  All that in one little plant.
Check out:
http://en.wikipedia.org/wiki/Trifolium_repens