How do you know if your seeds are still viable? Simple, do a seed germination test. Place the seeds in some water. The ones that sink are still viable – the ones that float are dead.
This advice is all over the internet so it must work? But how reliable is it?
The Germination test measures seed viability and can help gardeners figure out why things are not growing from seed.
Last year my planted carrot seed did not germinate very well. Was the seed still viable, or did I plant the seed too deep? Maybe it got too cold and the seedlings died, or maybe they were eaten by slugs? Did I fertilize enough?
I also collected some tomato and bean seeds last year. I wonder if they are viable? And what about the old seeds I have stored in my fridge; should I use them this year or buy new ones?
These questions can all be answered with a very simple seed viability germination test that you can do at home.
