Tree, Shrub, and Plant Growth Regulator

Freeze Growth, save on trimming cost & water bills!

Reduce the above ground vegetative growth of your trees & shrubs as well as improve the root structure. Improve color and create denser more robust leaves. With the Tree Theory plant growth regulator service we use an industry tested and proven plant growth regulator compound, which is most effective when applied to the soil near the base of the tree either by soil injection or a soil drench. 

Redistributed Energy- Rather than expending energy on top growth, trees increase root production, reducing need for pruning and improving drought tolerance.


Altered Leaf Physiology- Changes like thicker leaf cuticles, smaller stomata size, and increased leaf hairs help reduce water vapor loss in hot, dry weather and may aid in surviving pest attacks.

Enhanced Root Hair Growth- Strong roots mean strong trees; an enhanced root system optimizes translocation of water and nutrients found in the soil, reducing stress and the impact of construction damage.

Reduced Production of Gibbrellic Acid- Gibberellic acid is responsible for vegetative growth in plants. Reducing its production results in shorter length between internodes of branches and 80-95% less annual branch growth, meaning less frequent pruning and maintenance.

Increased Production of Abscisic Acid- Abscisic acid is an inhibitory plant hormone that reduces transpiration to prevent water loss and reduces enzyme production required for photosynthesis, aiding in drought stress management and top-growth production.

Increased Production of Chlorophyll- Chlorophyll allows plants to absorb energy from sunlight and produces green leaves. Increased chlorophyll production results in greater energy optimization and attractive deep green foliage.

Branch on the left was treated with PGR! Notice the deep green color and perfectly shaped leaves.

Branch on the left was treated with PGR! Notice the deep green color and perfectly shaped leaves.

Plant Growth Regulator

Reduce you trimming and water cost with an application of PGR.  

Reduce vegetative growth and improve the health of your trees and shrubs.