Hi Mick,
Congratulations on getting started with this tree
Black pines are very rewarding, but at the same time can be very challenging, and not that
forgiving comparing to maples, elms etc.
It is hard to grow new branches on old wood. So we need to create the foliage as early as
possible.
Please find the attached document -- we black pine lovers and learners must read it.
And also
Bonsai Today Masters' Series, PINES, Stone Lantern Publishing Company, P.O. Box 70 Passumpsic, VT 05861, U.S.A. 2005.
is a very good book to have. It is a bit pricey at $60.00, but it is worth every cent of it.
Best regards.
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