Numbers are in.
The numbers are in centimetres, but plants don't grow by whole centimetres at a time. Thus the numbers refer to "rounding bounds", wherein a plant listed as 12cm could be anything from 115mm to 124mm, and once it reaches 125mm it is listed as being 13cms. Statisticians might be better able to explain this than me.
With the exception of Tiny2, all the plants appear to be growing. However, the only plants which have moved up to a new rounding bound this week are Milo and Tom1. Data is in the group pages. I'll update the measurements page when Rosie and Jim go outside.