You can buy bales of pine straw (needles). But regular straw (oat stalks) I have not seen it..perhaps somebody has though. You can check your local dump as a lot of them give away semi composted but very finely ground mulch. Our dump here in Citrus county gives away the mulch in a coarse grade and another that is very very fine. One of my neighbors uses it and it seems ok. I personally prefer the tree company trimmings and in a year it is broken down to a great black soil but I do put some effort into making it break down faster.

I buy Coastal hay @ a local feed store. I usually buy 2 bales @ a time, spread 1 & leave the 2nd out for awhile to 'weather' (IOW spoil), tho I've never had any problems w/ either of them sprouting.

I'm thinking w/ Central FL being horse farm country, you might be able to find a feed store fairly easily...?

HTH

I also use coastal hay from the local feed store. 7.00 per bale. No seed heads. Buy several and let them set outside. Good soil builder!