It's only unsafe if it isn't rotted enough, then it could burn your plants, you'd have to compost it for a while first. I say: "Run, don't walk to your neighbors to talk him up on his offer!"
Nice score.

Be sure that your tetnus shots are up to date. Horses carry the bacteria for tetnus (so I was told as a vet tech many years ago), so be safe.

Well rotted is the key for the plants.

Llynn

I know my flowers sure like it!

Dave

I don't think you need to get tetnus shots. Horses these days are vaccinated for it and it is not seen much any more.
I have lots of uncomposted horse manure if anybody wants it. Mixed with pine shavings. Bring some bags.

I'm with hamptonmeadow. When your done loading his/her manure I have alot of the same at my house :)

I have put it on my vegetable garden at the end of the season uncomposted and tilled it in or even left it on top and tilled it in the spring with good results also.

Shirley

All "serious" gardeners run an increased (compared to the general public) risk of tetanus and may want to consider keeping this important immunization up to date.

Here is a link that might be useful: Do you know your risk of tetanus as a gardener?

I have read that horse manure is a "cold" composter, rarely heats up enough to kill the weed seeds present in it unless it is composted for two or more years. A customer of mine added 1-year old horse manure compost to her perennial bed and claimed the number of weeds/grass germinating from it resulted in her using Round-up to destroy the entire bed.

I've avoided horse manure because of this, but if others tell me differently, I might reconsider. Where I live, it's more readily available than cow manure.

KMS4Me/Kate

I've used horse, cow, and goat manure and haven't noticed any difference as to the number of weeds each type produced. Some of the manure has been somewhat fresh but most has been well composted. I cover the bed with a generous layer of wood chips about 6 to 8 inches deep.

Dave

I have been using a horse manure straw combination for three years now and my plants do very well.

You can go to Canterberry Park by Shakopee and get all you want for free. They grind up the straw and manure from the stables and put it in rows that are easy to load. You can get it just about anytime. You go to the second entrance that is near the stables. If you are lucky you might even find a horse shoe like we did two years ago. We rent a pick up for a day and make several trips.

www.roselawnheritagefarms offers a wonderful selection or well composted manure (2-3 year old) Choose either Cow or Horse. Will deliver or pic up at the farm.
20.00 yard, (delivery extra).

Here is a link that might be useful: Roselawn Heritage Farms