Definition of graft union in English:

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graft union

noun

The point on a plant where the graft is joined to the rootstock.
Example sentences
  • The bulge where the parts join, called the graft union, gets planted just at or below ground level, depending on your climate.
  • Suckers are vigorous canes growing from the rootstock below the graft union on grafted roses.
  • Plant the graft union, the bulge where the top joins the bottom, 2 to 6 inches below the soil line in cold-winter climates, slightly above the soil level in warmer regions.

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