If it were me, I would definitely plant them in several 'groupings' or clumps, leaving a little space between them. That way, you'll be able to walk through the area to pull weeds, etc. without stepping on your plants. Sounds like it will be just beautiful...
Vicki

You may know this already, just wanted to say Crocosmia multiply really fast. I have them in clumps mixed in with other perennials and have to pull them aggressively in spring when they come up. Otherwise, they invade the space of the other plants.

The idea of having a huge display in dedicated gardens sounds beautiful and the hummingbirds will love you.

I too got a whole bunch of these plants/bulbs and unfortunately I'm a chronic procrastinator and they have been left out, I tried to keep water on the bag to keep them from cooking. The green has turned brown...

are they pretty forgiving? If I go ahead and plant them, cut the green (I mean brown ;) off will they come back around?