OK, silly question. I need some red clay to make seed balls. Anyone know a garden supply place to get some? Or any other place?
The search for red clay has come up before. I did a site search for 'red clay seed balls' and came up with these URLs.
Here is a link that might be useful: Can seed balls be made from pottery grey clay?
Red clay is basically just terra cotta clay. Any local potter's supply (ceramics) should carry it. Twenty-five pound bags usually costs about $10. Try to buy it dry, rather than already having water added.
If you have a compost pile or sandy raised beds, adding some dry clay will improve the nutrient-holding capacity.
This may not be too helpful, but many areas of the country abound in red clay - in fact, I will give you all you can haul off!