Three seeds didn't sprout - a tomato, a zinnia and the Gerber daisy. The mortgage lifter tomatoes were first to sprout - after just three days. The packet of seeds is at least 13 years old. I had doubts they were still viable. Sweet 100 is a cherry tomato. Zinnias, other tomato varieties, lobelia, cosmos, basil and cilantro will be ready for outdoor-planting about the 3rd week of May. I'll start the second round of seeds this weekend: cucumbers, squash, pumpkins and more zinnias and cosmos.