Answer: Coreopsis Early Sunrise should germinate in one to two weeks at average room temperatures, so you are right to wonder. From your description I can't tell specifically what might have gone wrong. Here are a few pointers for your next try. Be sure the pellets are fully expanded and fully moistened before you plant. If the seed dries out it will not germinate, and the peat can absorb an amazing amount of moisture. The plastic covering is intended to maintain a constant level of moisture, so that seems like a good step. The plastic can, however, intensify heat buildup if placed in direct sun, similar to a car left in the sun with the windows closed. So place the tray out of direct sunlight until the seeds sprout. These plants grow quickly so you still have time to try again!
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