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Mycorrhizal Fungi (Friendly Fungi)

Key Benefits of Planting with RootGrow

Root Grow enhances plants root system so a newly planted plant:

  • Finds more food, finds more water.
  • Needs less fertilizers.
  • Establishes quicker and reduces failure rates.
  • Has increased tolerance to drought and adverse soil conditions.

These fungi are completely natural and organic and native to UK soils.

How Friendly Fungi Work

The white roots are produced by Mycorrhizal FungiMycorrhizal Fungi are widespread throughout nature and are a fundamental reason for normal plant growth and development. In fact 90% of all plants rely on a Mycorrhizal Fungi root system.

Such fungi colonise plant or tree roots, extending the root system into the surrounding soil, via an extensive network of fungal filaments (up to 20 metres in a teaspoon of soil). These thread-like filaments extract nutrients and water from a large soil volume and exchange them for carbon from the plant. This secondary root system, when established, links the root systems of adjacent plants or trees and helps share, more efficiently, nutrient resources throughout the plant community.

All the white roots on the Larch seedlings in picture are 'Friendly Fungi' roots, the thicker red/brown roots are the Larch's roots. This fungal network increases the volume of soil explored by the plant by up to 700 times.

Gardening including hoeing, tilling and regular chemical fertilizer use can inadvertently disturb and reduce the friendly fungal root network. Equally, the roots of some plants may seek a fungal partner that is not abundantly found in our gardens. Without changing your garden methods you can introduce mycorrhizas suitable for UK gardens through a simple application of RootGrow to the planting hole during planting out.

It is now recognised that the lack of the mycorrhizal relationship is a major cause of poor plant and tree establishment. While a plant will gradually develop its own mycorrhizal root system, planting them with RootGrow will speed this process up. It can take up to 3 years for it to develop naturally, while using RootGrow can get the mycorrhizal root system established within one month.

RootGrow Gel Mix is ideal for treating bare rooted plants and large quantities of pot grown plants. If mixed up in a bucket plants can be dipped in this before planting.

How Much Do I Need?
Recommendations for Plants Dosage of rootgrow
Bare Root Plants (Br, Tr or Sd in catalogue)

One 60g sachet will treat approx. 15 bare-root plants (60-90cm/2-3ft).
One 360g sachet will treat approx. 100 bare-root plants (60-90cm/2-3ft).
One 5 Litre tub will treat approx. 750 bare-root plants (60-90cm/2-3ft).
One 10 Litre tub will treat approx. 1500 bare-root plants (60-90cm/2-3ft).

Small Pot Grown Plants from our mail order range (Pg in catalogue)

One 60g sachet will treat approx. 16 plants.
One 360g sachet will treat approx. 95 plants.

 Cell Grown Plants (CG1 or CG10 in catalogue) One 360g sachet will treat approx. 125-150 plants.
Seed trays and hanging baskets Incorporate 1 part RootGrow to 19 parts substrate.
Roses and other shrubs and plants in containers e.g. vines, ornamentals, climbers 2 scoops or 5 heaped teaspoonfuls for each 5L root ball in the planting hole.
Trees and other large root-balled plants One 60g sachet will treat up to 12L container grown tree.
Vegetables e.g. strawberries, leeks, lettuce 2ml or a teaspoonful in planting hole.
House plants Add 5 heaped teaspoonfuls at transplanting or add 1-2 teaspoonfuls into the root zones around the pot.
Turf or other grasses or wild flowers Add at 100-200ml per square metre (area) or below seeds in row per metre.

RHS RootgrowRoot Grow Plus can be used on 90% of garden plants (the main exceptions being Brassicas and Ericaceous plants).

The Gel Mix is best used on larger quantities of bare root plants as the roots can be dipped. Packs containing gel can be used in granular form if required.

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