The RootMaker containers allowed our cloned desert trees to develop a balanced, well-defined root mass to foliage mass ratio.
Above ground growing is affected by heat and cold more so than when plants are grown in the earth. Smooth-walled black nursery containers provide little protection to the plant roots beyond the thickness of the plastic, which is virtually no protection at all. RootMaker® containers, on the other hand, cause roots to branch once they are air pruned at the sidewall. Where a root tip is pruned by air, branching will occur about 4” back from the tip. This occurs because the hormonal control that dictates how roots grow is removed once the root tip is air pruned. Thus, in overwintering plants, all the roots are branched back into the center of the container into the medium mix and toward the base of the stem, not against the sidewall where they are exposed to the cold. The same temperature protection occurs in the hot summer months where root death can occur in as little as 15 minutes when the sun hits the exposed side of a traditional black nursery container. The RootMaker® Containers essentially imitate plant life in the earth where root temperatures are protected by the soil. This makes a big difference in the growth of the plant and tolerance to the cold.
What plants can be grown in RootMaker® Containers? Everything. Trees, annuals, perennials and vegetables.