Mt William Advanced Tree Nursery is a grower very conscious of producing a quality product not only in relation to correct branch structure and form but also a correct and well developed root system.

Because of the conscious decision we have made in relation to root systems in containers, air pruned containers (Rocket Pots ®) is the main form of production and any hard walled pots used are treated with SpinOut ®.

Kinked and girdled root systems have proven to have devastating effects on early tree growth and can be the cause, of higher transplant failure and or the need for greater maintenance to re establish trees.

SpinOut ® is a copper hydroxide based product that was developed by the Griffin Corporation to control undesirable root growth and produce plants with high root regeneration potential. SpinOut ® is applied to the inside of the container and it helps prevent root elongation once they reach the edge of the container. Apical dominance is interrupted and new roots develop further back from the root tip. Just the same as Rocket Pots ® root spiraling and matting is prevented and the plant produces a shorter, finer, more fibrous and healthy root system.

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