Answer: Seed starting mix is milled, like peat moss, and once it completely dries out it is really difficult to rewet. I would suggest you take the mix out of the cells, dump it into a sealable plastic baggie and fill the baggie one half to three quarters full with water then seal the bad and knead or massage the bag to help the seed starting mix take in moisture. Once it is wet you can put it back into the cells and plant your seeds. Watering from the bottom is an excellent idea and one I would encourage - after you have gotten the seed starting mix wet and after you've put it into the cells of your tray. Good luck with your seed starting venture!
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