While sorting seeds in preparation for our spring seed order, I remembered some pointers from the recent seed-saving workshop that I'd forgotten to share here. Dr. Brian Pace from Ohio State University showed off his seed-storage box and method, which are subtly better than my own.

Inside his box, Dr. Pace adds a healthy helping of Drierite beneath a metal stand to suck up moisture in the air without directly impacting the seeds themselves. Meanwhile, he uses a simple formula to see if the spot where he's storing his seeds is effective:

In other words, if you live in the humid south and your storage spot hovers around 60% humidity, you need to lower the temperature to around 40 in order to keep seeds fresh.

While you're at it, don't forget to keep an eye on average seed longevity. No matter how fancy your seed-storage arrangement, it's not going to keep the lightweights --- corn, onions, parsley, peppers --- for more than two years. Good luck and have fun as you put those first dormant embryos into the ground!