The only problem is, is that they are seed mixes, so I can't be sure what will come up.
With a bit of luck and a following wind there will be a lot of nectar-providers which will give a mass of colour for several weeks all summer creating a pretty wildlife habitat and a sea of seed heads later on in the season.
I also picked up a packet of first year flowering mixed perennials which should be an economical way to fill in the gaps in the herbaceous borders.
All this talk of seed-sowing has got me champing at the bit ready to get back into the swing of the gardening year. There are some great pictures where a designer has used wild flower borders on spare pieces of ground around Sheffield, @ Noels Garden blog.