There are 4 weeks left before our statistical last frost here in Raleigh, NC, which is zone 7b. I have trays of tomato and pepper sprouts that could use some liquid fertilizer. In another week they may need larger pots. Looking ahead at the weather forecast, there are still plenty of chilly nights so I’m not risking transplanting sprouts outside yet. It feels like winter has returned in Raleigh, so I was lucky to have that warm week to get…