Thursday, September 25, 2008

Ponderosa Needles

Needles on Ponderosa pine trees only live three years and they don't regrow; each spring, new needles grow at the tips of the branches and each fall, the three-year-old needles all turn brown and drop off. This is why older Ponderosas have tufts of needles on long, bare branches. The first time you see it, it is a little startling - it looks like the tree is dying from the inside out.
I think most pine trees loose needles over time, rather than all at once, so it is hardly noticeable.

1 comment:

Anonymous said...

I hope that tree reamins healthy!