I thought these would be great instead of a messy bag of starting soil. They may be good except for what I got was EXPIRED. Apparently something that these are made of have an expiration date and though someone had drawn a black line through it I could see that they had expired 4 years ago. One pellet was supposed to expand to fill a growing cell, instead it took at least 12, I stopped counting. Needless to say these will not go very far and are a huge disappointment. Gardeners Edge responds: After speaking with the manufacturer, we learned that Wonder Soil ran out of labels and used old ones with an old expiration date printed on it. The date was blacked out since it was incorrect, but the product is new and still good. There should not have been any issue with the pellets expanding, so Wonder Soil will be contacting this customer to send out a replacement.
I live in zone 2-3 so I need to start many vegetables inside, including tomatoes and peppers. Although I haven't planted seeds yet, I have experimented with the wondersoil pellets and am pleased with the way they expand. I will start the tomatoes and peppers in a few weeks and plan on inserting 1-2 of the wondersoil pellets in each of the plug.