Fir Tree in the Cold Biomes

Fir trees would have needlie looking leaves which spawn in a triangular pattern.  Fir trees only spawn in cold biomes replacing all other trees which can spawn there except for spruce trees.  Fir trees do not spawn in dense clusters and their wood has more of a gray ish tint to it.  Fir trees drop seed cones every 1-4 minutes, which are the only way to replant them.   They also drop seed cones when destroyed, but if not ripe, the seed cones are green instead of brown and have to be placed outside for a little while before it releases the seeds and lets the Fir tree grow.

What do ya think?