Layering of Rhododendron

One plant did produce roots, but the other had very hard growth like hard Styrofoam around the area wrapped in foil. I can’t locate any source that might explain what this is…..can you help answer?

Lee
Pennsylvania

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1 Comment To "Layering of Rhododendron"

#1 Comment By BushDoctor On 09/12/2017 @ 4:45 pm

That is just like our own stem cells. These are the precursor to roots! Keep an eye on them, as they will soon root as well. This article will help: http://www.saps.org.uk/saps-associates/browse-q-and-a/500-what-causes-root-callusing-why-is-it-that-some-in-some-varieties-some-of-the-cuttings-root-readily-while-others-develop-a-large-amount-of-callus-which-prohibits-rooting ^[1]

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[1] http://www.saps.org.uk/saps-associates/browse-q-and-a/500-what-causes-root-callusing-why-is-it-that-some-in-some-varieties-some-of-the-cuttings-root-readily-while-others-develop-a-large-amount-of-callus-which-prohibits-rooting: http://www.saps.org.uk/saps-associates/browse-q-and-a/500-what-causes-root-callusing-why-is-it-that-some-in-some-varieties-some-of-the-cuttings-root-readily-while-others-develop-a-large-amount-of-callus-which-prohibits-rooting

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