Rootgrow is an organic treatment that was originally launched to improve the vigour of roses via the roots when incorporated at planting. Rootgrow helps to improve the uptake of water and nutrients from the soil and is now more widely used. It encourages the roots to grow more quickly and also helps to prevent rose replant sickness. It is especially beneficial in poor soil but do not use with bonemeal as that inhibits growth of the fungi.
Rootgrow can be bought in most good garden centres or via amazon

Plants use hormones to influence and promote the development of their cells. Root stimulators, like rootgrow usually come packed with bacteria that can actually produce phytohormones directly into your plant. The hormones encourage much faster growth which results in bigger yields and faster harvests. Mycorrhizal fungi can now be added when planting as there is a symbiotic relationship that encourages healthy root growth.

According to some, quality rooting stimulators come with certain strains of bacteria, most notably paenibacillus, designed to enhance the Nitrogen your plant receives so it can help maximize root and plant health. This bacteria provides your roots with a steady stream of reduced nitrogen by converting N2 gas in the air into a form of nitrogen that can help your roots grow to their potential. ‘The volume of soil space controlled by tree roots is directly related to tree health’ Dr Kim Coder 2000

Hydroponics growers have had to deal with the encroachment of harmful fungi, usually when their conditions becomes too humid but there are certain strains of fungi that can actually benefit root development. When these fungi are introduced to your hydroponic system, they can break down debris and turn any undissolved nutrients into materials that your plant can actually absorb by increasing nutrient uptake, releasing Growth Hormones and promoting Beneficial Fungi, with Nitrogen, Phosphorous and Potassium.

A mixture of 5% nitrogen, 12% phosphoric acid, 3% soluable potash is highly effective as a plant starter. It stimulates early strong root formation and reduces transplant shock.

Good Roots and Bad Roots

• This shrub has evolved a root system that fits the landscape literally.
• Good large roots should be oriented both laterally and vertically to provide better root systems.
• Many plants need large roots for anchorage and fine feeder roots for water and sustenance.
• Higher quality root systems have several large main roots emerging from just below the soil surface.

Roots get low recognition by many gardeners but the science of root growth and root development is about to change all that. No longer is it good enough to dig a £5 hole for a £1 plant. More care and thought needs to go into the roots and their needs and aspirations.