Re: soil type
Mark,
I haven't grown those varieties, so not sure of their growth characteristics. Some varieties send their new leaves up and the start unfurling as they emerge. With others, the new leaf shoots up inside the stem of the previous leaf, and each leaf needs to fully emerge before it unrolls. If the next leaf comes out too fast, the previous leaf hasn't unfurled yet, and the newest leaf get's stuck and pushes itself out through the previous leaf, folding itself, and ripping the previous leaf. Manzano was one of the worst affected. The Cavendish types didn't have any problems.
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