It is interesting how big differences in the growth habit become apparent even in a handful of hybrid seedlings. This small tray has seedlings from my cross Haaga X (fortunei LS x Loderi King George), sown
18.2.2010. One seedling is supervigorous.
Here's four seedlings from my cross PMA-T
X auriculatum, from the same year as above. The biggest one has huge leaves, the smallest one is hidden below the others.
As a comparison, species seedlings look much more uniform, as exemplified by R. wasonii (seeds from RHS seed exchange). Beautiful, dark green leaves here.