Some plants will be emerging. 14 January 5 Many plants are emerged. You may also have the time in late January to dip temperatures to improve bud count. 13 January 12 Crop is fully emerged. Move any non-emerged plants to warmer areas.
Some growers start sorting for uniformity of flowering and growth regulator applications.
Start graphical tracking and begin height management depending on the results of the graph. Buds are probably initiating. An early non-destructive check on this is that stem roots begin growing at the same time as flowers initiate. Since strong negative DIFs can increase postharvest catastrophic leaf yellowing, zero DIF or morning temperature drop is better as some height control is realized with less chance of leaf yellowing later on. Dissect a few plants for evidence of flower initiation so leaf counting may begin.