In August 2017 I wrote a post about unsuitable material for bonsai. Most of the trees I discussed in that post were trees I'd grown from seed, in some cases hoping to turn them into bonsai. As I said at the time, however, I had no delusions that I could ever bonsai a mango tree, but I couldn't resist the temptation to grow my own mangoes. By the time I wrote that post my mango tree was seven years old and was flowering for the first time. Mango flower buds - August 2017 I was thrilled, but…