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Old December 27, 2018   #56
taboule's Avatar
Join Date: Jul 2013
Location: MA
Posts: 899

Originally Posted by loulac View Post

If I try to have most seeds germinate at the same time it's because I find it difficult to keep a correct dampness for seedlings and still dormant seeds in the same flat. Of course it's not a problem for small batches. It would be interesting to know how professional growers find a solution.
This reminds me to share my experience, that good technique has at least as much to do with successful and productive germination (and subsequent seedling health) as the equipment itself. I've only used the most basic heating pads (mostly ones that come packaged with a 10x20 tray and pucks) and alter the technique to match the plant variety and batch size.

Even when germinating all seeds of-one-kind in a flat, many days separate the first ones from the laggards. As Loulac mentions, the dormant seeds and seedlings need different environment, not only moisture, but also different heat and light ideally.

I've settled on using "removable" media, either tiny 2x2 square pots (with one or 2 seeds per) or peat pucks in my germinating trays. I inspect every day for emerging seedlings, and immediately remove them to a cooler shelf under intense lights. I then can replenish the vacant spots with new seeds and media.
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