Second Grow (Blueberry Automatic)

Want to update each Sunday from now on. Took the pictures and measurements on Sunday, but wasn't able to update right away because of computer issues. Removed humidity from the growth conditions because that doesn't make any sense when growing outdoors. In general it's very humid (+60%) here in The Netherlands. Growth: Plant 1: 36cm --> 46cm in 5 days (2.0 cm a day) Plant 2: 47cm --> 59cm in 5 days (2.4 cm a day) Plant 3: 37cm --> 50cm in 5 days (2.6 cm a day) Weather: Mon 2 22° / 9° Actual Temp Precip 0 mm Tue 3 20° / 11° Actual Temp Precip 0 mm Wed 4 22° / 13° Actual Temp Precip 7 mm Thu 5 18° / 8° Actual Temp Precip 4 mm Fri 6 20° / 7° Actual Temp Precip 0 mm Sat 7 19° / 12° Actual Temp Precip 0 mm Sun 8 17° / 11° Actual Temp Precip 1 mm