Thank you for replying, it does look like an interesting project. Did you leave all the old branches? if so, do you think that could be a reason why just one graft survived? has the new buds resulted in long needles this year? I was thinking the same about fertilising that’s why I’m gonna start fertilising, late again, with fish emulsion before applying Biogold to see if I get a bit more grow before winter. This month I will attend a local club hoping to find somebody with experience. since there is so little information about JBP in our climate it will be good to keep this or the post (Japanese black pine and uk climate) active.
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