European Ash (Fraxinus excelsior)

I wanted to give ash a try. Although the leaves are quite big I believe their compound shape will give the impression of clusters of smaller leaves.

My ashes are self sown, about 20-30 cm in height.

I am having second thoughts about planting in translucent containers. Will the roots mind?

Nevermind, they will all be repotted in the spring.

Collected summer 2012. Heights about 20 cm.