They are about 1 to 1.5 inches wide and puff up to about 2.5 inches tall
Depends entirely on what your planting. If you're growing from seed packets the info should be on it. I planted 8 types of vegetables, I had visible growth in 3 days and by week 2 they had all sprouted.
Only after transplanting. We moved a bit of the peat around after putting in the seeds but you don't need additional soil.
The seed sprouts from my experience are amazing in those ! But I would always reccomend Root Riot! They are amazing for Seedlings but not for Clones it’s not as Sturdy or Quick! Overall Works and Great Price!
Yes they are excellent for Seedlings!
The height from the bottom of the black (bottom tray) to the top of the dome is about 4". The clear dome itself is about 1 3/4".
Fox Farm Ocean Forest Soil 1.5 cu ft!
I sowed aubrieta seeds with the wintersowing method with great success! It was alot easier (& cheaper) than jiffy pots or pellets.
I always use some type of grow food when starting seeds.