One observation. I made a light-weight soil mix for starting leaf vegetables, like lettuces. The mix was 50% vermiculite and the other 50% was home made compost, cocoa coir and a commercial potting soil. I used a relatively thin plastic fruit container (like the one that blueberries might come in) with a soil depth of between 1 and 2 inches. The potting soil was saturated. The fruit container had a lid. The lid worked as a mini greenhouse. The container was placed on a heating mat. The seeds sprouted in about 28 hours. I have needed to top spray the mix every day while the rest of the seeds germinate. Not sure if a deeper container and more soil would have held moisture better, but I only plan on using that much vermiculite with the lettuces so it's not a big issue.
