How to Grow Grapes With Mycorrhizae

Choose a sunny, well-drained site for planting your new grape vines. Test the soil in your chosen location to determine the presence of any nutritional deficiencies. Although Mycorrhizae can help promote healthy growth, it won’t make up for poor growing conditions or inadequate soil nutrients. Amend the soil in your planting site by incorporating any soil additives recommended by your soil test results.

Soak your new bare root grape vines in water when they arrive. Allow them to sit in a bucket of water while you dig the planting holes. Make the holes large enough to spread the roots out without bending them. Space the holes between six and eight feet apart.

Prepare the Mycorrhizal spore slurry by mixing the concentrated root dip with the recommended amount of water, as instructed on the product label. Pour the slurry into a five-gallon bucket and place the bucket next to the first hole.

Plant and treat one grapevine at a time. Remove the bare root grapevine from the bucket of water. Prune off all but the most vigorous cane. Snip off any broken roots or ones that extend beyond the main root system.

Dip the grapevine roots into the prepared spore slurry, thoroughly coating the entire root system. Place the plant into the hole, spreading out the roots evenly. Backfill the hole to bring the soil level with the rest of the ground. Tamp down the loose soil to remove any air pockets. Plant the remainder of the grapevines in the same manner. After planting the vines, water the new plants to create even moisture throughout the area surrounding the roots.