Trunk-Builder™ 36in Grow Tube Companion Stakes Intended for 2ft SunFlex Grow Tubes

Your grow tube installation is only as good as the stake you choose for the job! The same goes for traditional tree tubes and tree-shelter installations. That's why we pioneered our durable, virtually unbreakable, and reusable Trunk-Builder stake line. Trunk-Builder's patented design flexes in the wind to help seedlings develop stronger stems and are engineered to stand tall with built-in super strong “memory” to return to a straight position even on the windiest sites. Professional nurseries have used fiberglass training systems for decades to grow trees tall, straight, and strong. Trunk-Builder's purpose-built design, for the first time, delivers the same benefits with grow tubes. Put Trunk-Builder stakes to work in your field and grow your trees the way the pros do.

Trunk-Builder stakes help grow stronger tree stems in a grow tube from the start - Like everything we do at Plantra, it all begins with growing the plant and Trunk-Builder stakes are no exception. Trees use a variety of environmental influences to grow and wind is an important factor in normal stem development. Trunk-Builder harnesses the wind to stimulate plant growth responses that encourage stronger stems - a process known as Thigmomorpogenesis. Unlike traditional, rigid staking systems which can lock tubes in place and prevent natural movement of the developing tree, Trunk-Builder gently moves back and forth when the wind blows and returns to straight to train your trees tall, straight and strong.


Trunk-Builder is super strong and delivers where other stakes can't - Trunk-Builder's reinforced stake designs get the job done by combining all of the following into a one-of-a-kind staking system perfect for use in your field:
Trunk-Builder is super-easy to use - When time, money, and labor matter Trunk-Builder delivers with an easy-to-use design ready for the field:

Put Trunk-Builder to work in your fields and you'll get stronger and straighter trees with less time and money!


SunFlex Stake Specifications

  • Profile = 3-sided "Delta"