Anyone reckon they know what's going on with my Columbus? My other 4 varieties (Chinook, Cascade, Hersbrucker and Hallertau) are all growing well, with excellent colour and leaf health. But the Columbus, which is in similar soil, sun position, and has had the same watering/feeding regime, is looking crook.
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The only difference is that the Columbus was a large root ball I got from someone who'd dug it up from their property, whereas the others were single rhizomes. Perhaps the larger root ball with its multiple shoots needed more of something to get it going again? I've given it some more Easy Wetta fertiliser tonight (the granules you can see sprinkled around) and a good watering, hopefully it helps. The only pics I can find on the web seem to suggest it could be a potassium deficiency, but that seems to be soil related, so wouldn't explain why the chinook a few metres away is thriving.