Last week I visited a primary school that has been on our Growing Up With Trees programme for two years. The schools collect native tree seeds from nearby woods and set up their own tree nursery, starting the seedlings in pots.
These tree seedlings have been kept in a cold frame quite successfully for 2 years, although they would do much better in separate pots, and better still in the ground. The brown leaves on the Oaks are last year's. The trees are still alive though the nutrients in the compost are probably exhausted, so they are really just clinging on.
The school is going to transplant them into their wildlife garden. This needs to be done before the sap rises and they come into leaf.
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