Wait don't throw out those expired seeds just yet! First, watch this video and do a germination test.
00:20 The Ediful Gardens Podcast where ever you listen to podcasts
00:25 Depending on the species they may or may not still be viable
00:44 Four-year-old seeds
01:34 What is a germination test
02:00 Get a zip lock bag, some old seeds, and some paper towels
02:32 How wet should the paper towel be
03:44 Do not seal the zip lock bag and be sure to label if you are doing more than one test
04:19 How to calculate germination rate - #mathskills
05:05 What is a normal germination rate
05:45 Some seeds need a little extra attention but this video is a general germination test
06:20 How to keep the seeds during the test
07:19 Determinating how long to keep them in the bag
07:45 Be sure to put the date on the label to know when to check them again - give them a little extra time
08:26 The reason not to seal the bag
08:39 Do not plant these seeds after germination and the reasons why - even if they sprout
09:26 My experience with questionable seeds from the past
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https://www.youtube.com/watch?v=lEod_0INNLU