pine trees

[thera]

at what time of year do the pine cones fall off the trees

[Thunderbird+]

It depends on the species of pine tree but most will fall in the autumn and winter months, handy if you want them for Christmas decoration.
Some species of pine however hang onto their cones for many years, the Monterey pine for example may hold on to them for 40-50 years til they get blown down in a storm!