Sedum Questions

I'm not very experienced in mulches, so I have a few questions if anyone could please share some insight?  Are somewhat regular fertilizations actually bad for sedum?  I want to put something around my clematis but it likes to be fertilized every now and then.  Everything I've read says to not fertilize sedum, but compost can be expensive as mulch.  Also, is sedum like regular mulch in that it's bad to put right up against a plant?  I've read that with normal mulches, it can cause the stem to rot.  Is it similar with a live mulch?  The main plants I want to plant it around are peonies, lupines, columbine, clematis, hyacinths, and viburnums, if that helps.  Thanks for your time!

Hello Heiden,
what sedums, there are loads? Mine just grow on like the parking lot and between rocks, so i'd say, they do not like wet feet for sure, but do not mind drought. Mulches keep the ground longer wet. And if you plant all these other plants they might get shaded out, another thing they don't like. Can't you make one place for your sedums, dryish, sandy, poor soil with lots of rocks and another for the plants that like a different habitat? They will flourish better in what habitat they like. It's like the first and only demand plants have , give them a habitat they can live in. You can walk away after, they'll do their thing.... The good thing about them is they need zero fertilizer to be happy!