Where to get cheap cover crop?

I am getting ready to dig some swales and plan on planting cover crops on the berm side....the only problem is finding cheap cover crops....I've looked around here and seems the stores only sell packets of 30 or less seeds for a couple of bucks. I didn't even need to do the math to know this would cost me a fortune to seed a 100ft swale.
Does anyone know of a cheap place to buy cover crops?

Where are you located? If you update your profile to include a general location then people can just look and help as available.

I posted a similar question not long ago and was guided here, which was great advice. If you don't live near Portland, this isn't so useful.

I hope you get the answer you need.

You didn't say how much you are planning to do, so I am not sure how many seeds you are buying. When I get cover crop seeds I buy them by the 50-pound bags usually multiples for each variety. I get them from local feed stores. There is usually one or two that specialize in cover crop seeds in an area though many have them for sale. It is cheaper to buy a full bag, but many places also sell by the pound. If you need just a few pounds of each, you might try Johnny Selected Seed http://www.johnnyseeds.com/ which sells many cover crop seeds as well as vegetables. They sell from a few ounces to 50 pound bags, but shipping can be a killer if you aren't close to them. If you need large amounts and don't have a feed store that sells seeds near you, I can look up some of my catalogs from places in the Northwest that specialize in shipping cover crop seeds.

Cool..well I live in Okla. and there are plenty of feed stores that I can call so I'll try that for sure.
Thanks for the tip!

I have had some luck with whole foods. A pound of beans goes a long way. I have grown their buckwheat,all kinds of beans, and just tonight my daughter and I seeded two micro greenhouses with a mix that includes every whole grain they bulk sell, sans rice and corn.

Yes, they're the only supplier of Jerusalem artichokes that I could find here in my city, I hadn't thought of beans(didn't know they were a cover crop) though....nice.

terry howard wrote:Yes, they're the only supplier of Jerusalem artichokes that I could find here in my city, I hadn't thought of beans(didn't know they were a cover crop) though....nice.

Where do they have the Jerusalem artichokes in the store? I didn't know they had them. I could use some, too.

I also get untreated alfalfa and clover from the sprouts section, when I only need a pound or two. Daikon as well.