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How to Make Grafting Paste

Updated April 17, 2017

Grafting is the most common means of combining two different trees or plants in order to use the benefits of both. Different means have been used to graft over centuries, even though some plants have been known to graft naturally. Using grafting paste around the graft, or where the two plants have been combined, seals the cuttings and prevents moisture and fungus from penetrating the cut. While this grafting paste can be found at any gardening store, it is more affordable to make it yourself and it will also keep longer, for you only have to make as much as you need at a time.

Pour limestone powder into the small bowl. If doing a small graft, on a bush, only use 1/2 cup. If doing a larger branch or even tree graft, use about 1 cup.

Pour in enough water to make a paste, in a ratio of one part water to every four parts limestone powder. Mix it thoroughly.

Place the mix around the graft of the tree using the painting spatula.

Place the excess in a sealable container so it does not dry out.

Keep the limestone powder in a cool, dry place, and only use as much is needed for each graft.

Tip

White limestone powder can be found at almost any gardening store, however, it is also a component of Thai cooking and can often be found in Thai food speciality stores.

Warning

Only use white limestone powder; any other limestone powders can have imperfections that can damage the plant.

Things You'll Need

  • White limestone powder
  • Small bowl
  • Large paint spatula
  • Sealable container
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About the Author

Based in Kingston, Canada, Samantha Lowe has been writing for publication since 2006. She has written articles for the "Mars' Hill" newspaper and copy for various design projects. Her design and copy for the "Mars' Hill" won the Associated Collegiate Press Pacemaker award in 2008. Lowe holds an Honors BA from Trinity Western University, and a MSc in Occupational Therapy from Queen's University where she is currently doing her PhD.