The Hybrid Larch tree (larix eurolepsis) between the European and Japanese larches is quite outstanding. It has greater vigour than either parent and will produce sawn timber more durable than Japanese larch. It was first produced around 1904 at Dunkeld House on Tayside. In this instance the 'mother' tree was Japanese, but some later deliberate crosses European larch has been used as the seed tree. The scarcity of F1 seed of the Hybrid Larch tree (larix eurolepsis) has restricted the amount of planting in the past. There are now seed orchards of selected parents to overcome this problem. A specimen 40 metres tall is already on record.