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Catoblepas@piefed.blahaj.zone ⁨1⁩ ⁨week⁩ ago

• Wren@lemmy.today ⁨1⁩ ⁨week⁩ ago

  I’m not a plant person but I do make my own dyes and pigments from organics. One of the ingredients I use to precipitate the pigment, or as a mordant, which can change the colour, is aluminum sulphate - also used as plant fertilizer to raise soil acidity.

  The chemicals that produce colour in plants are super sensitive to PH, there’s a plant based paint company, I think in Europe somewhere, that makes everything from green to red to blue out of just red cabbage.

  I don’t know if that’s what’s happening here, but it is indeed super neat.

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• robocall@lemmy.world ⁨1⁩ ⁨week⁩ ago

  Is that so?

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  • Catoblepas@piefed.blahaj.zone ⁨1⁩ ⁨week⁩ ago

    It looks like the saturation was cranked up on the OP image, the pictures on Wikipedia of Texas persimmons show them as ‘blue’ in the way that blueberries are blue, very dark and almost black. But I only knew of them as orange, so as far as I’m concerned that’s pretty blue!

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