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I like to start my seeds in pots that I've placed on a heat mat. The heat gives the little seedlings a boost. They can be purchased in gardening catalogs, and, I'm sure, nurseries.
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I learned the hard way that starts don't like to be in a warm room. They get leggy really fast. So I keep my operation in my garage that is about 50-60 degrees.
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I put a picture here of my newest "toy". It is a pesticide sprayer. Of course, I avoid all pesticides, but have just been introduced to this handy-dandy tool as a great watering system. You can purchase them at Walmart for $9-$15. I've been delighted with the ease this allows my watering time. It is gentle on the little seedlings and is tidier than a water can or dipping system.
Let me know what you are starting and how! - Nanette