Answer: It sounds like you are doing everything right for average seed starting. The secret to New Guinea Impatiens seed is soil temperature. It germinates best at 75 to 78 degrees, and should be pressed into the soil rather than covered. Soil tends to be cooler than the surrounding room temperature, so you might wish to use a gentle bottom heat but be careful not to get the soil too warm as that will also stop germination. Good luck with your impatiens!
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