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Good morning, check out this weird tree I found near my gym this morning. It must be a graft, right? https://octodon.social/media/wa_YHYj7lOlrWB8S6FE https://octodon.social/media/uaY86cAopu16NcNPKSo
@fobo Or at a boundary between areas of soil with Ph differences.
@fobo That could be it. Construction not only disturbs the "native" soil but can involve bringing in fill from elsewhere. You could always get a couple of soil Ph testing kits from the garden store and know for sure. :) I imagine if the vegetation were the right types and dense enough, you'd be able to see the line where the boundary is sharpest.
@snoot Interesting! It is in a parking lot, so I wonder if there's weirdness in the soil. I noted that the tree to the south has all white flowers, while the two trees to the north have pink. They're all separated by about 40 feet.