what does "ready to harvest in X days" really mean?
I have been growing my vegetables from seeds for several years and I am always curious about this but never asked. So here is my question finally: when on the seed packet is states "ready to harvest in 25 days" (this is from my radish packet) what does it mean? What is the starting point for those 25 days? Germination? Getting their first pair of true leaves? Please help me solve the mystery :)