Yarrow seeds - roots or mold?

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smileygirl19 Springfield, OR Oct 17, 2014

Hello! (: I am new to starting plants from seeds, but have read as much as I can in order to increase chances of success. (: I planted some Yarrow seeds in a black plastic seed tray using a heat mat and grow lights. I used seed starting mix, and then cinnamon on top of the soil as an anti-fungal. They started sprouting in just two days! The problem is, there is white, fuzzy growth in the tiny stems. It looks like fine white hair. I have no mold growing on the soil at all. It is ONLY on the stems of the tiny seedlings. Is this fungus, or just tiny roots? If it is fungus, should I mist them with Hydrogen Peroxide? If so, in what dilution? 1:10 or? Thanks for any help! (:

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pollengarden Pueblo, CO(Zone 5b) Oct 25, 2014

Once they sprout, it is time to uncover them and start bottom watering. You will need to water more frequently than when covered - check twice per day at first. If You suspect mold, try fresh air and sunshine, outdoors if it is warm enough, for a few hours. Mold shouldn't like this. Which yarrow? Is it one with fuzz on the undersides of the leaves? If the fuzz is pale & the stem color is healthy, they may just be naturally fuzzy.

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