Cold treatment for Mikawa Black Pine

[dasickle]

I have about 50 Mikawa Black pine seeds. How long do I need to cold treat the seeds for before germination? I am used to cold treating most seeds for 3 months and planting them in late March early April. Some directions said 30 days, some say none at all and some say 60 day.

What the right number? Is longer better?

 

[Brian Van Fleet]

Follow Wood's advice: http://bonsainut.com/forums/showthread.php?17454-Germination-methods-for-cones&p=233915#post233915

And for much more in-depth: http://www.evergreengardenworks.com/seed.htm