The Science Behind Fabric Grow Bags for Tree Nurseries

Healthy Roots Start with the Right Method

Whether you’re running a tree nursery, farm, or greenhouse operation, your choice of growing method directly impacts growth quality, transplant success, and long-term performance.

At RootPro, we manufacture fabric grow bags for tree nurseries engineered to grow stronger, more fibrous root systems through a natural process known as root pruning.

Let’s explore the science behind this breakthrough and why tree nurseries are replacing plastic pots and B&B with RootPro Fabric Grow Bags.

The Above Ground RootPro Solution: Root Pruning Fabric Grow Bags for Tree Nurseries

RootPro’s fabric grow bags are crafted from a proprietary non-woven textile, developed and engineered in Ontario, Canada. This advanced material allows for superior aeration, drainage, and temperature control — creating the perfect root-growing environment.

When a root tip reaches the inner wall of a RootPro bag, it entangles into the fabric rather than a solid smooth wall. The root tip forms a callus and stops extending, signalling to branch new lateral roots from behind the tip.

This process known as root pruning results in:

• A dense, fibrous root system with exponentially more feeder roots

• Improved nutrient and water absorption

• Faster transplant establishment and reduced shock

The In-Ground RootPro Solution: Root Pruning Fabric Grow Bags for Tree Nurseries

Using RootPro fabric grow bags as an alternative to balled and burlaped (B&B) for field grown trees provides a noticeable difference in the first couple years after being planted by the landscaper or homeowner. Similar to plastic containers, B&B has been a common method that farms have used for generations.

When a tree is potted in a RootPro fabric grow bag and moved into the field for 2-5 years, around 80% of the roots remain in the bag at the time of harvest. Compared to losing 90% of roots with B&B!

The grow bag root system is dense, pruned and the root tips inside the bag are callused and oriented outward.

The result? No shock, less stress, faster growth after transplant and happy customers who get to see their new tree begin to grow right away.

To learn more about the benefits RootPro fabric grow bags offer compared to B&B, visit https://www.rootpro.ca/treebags

The Science Behind Root Pruning

Scientific research has shown that plants grown in root-pruned containers develop:

• 40–60% more root tips

• Higher oxygen uptake and metabolism

• Stronger top growth and overall biomass

This root structure mirrors what plants develop in open field soil — making RootPro fabric grow bags ideal for transitioning from nursery to urban landscape or orchard.

Why Growers Across Canada Choose RootPro

Commercial growers, reforestation projects, and tree farms are choosing RootPro because our grow bags are:

• Reusable and long-lasting: Built to endure multiple growing seasons and outdoor exposure.

• Eco-friendly: Reduce plastic waste and support sustainable growing practices, made from recycled water bottles.

• Purpose-built for tree nurseries: Reinforced stitching and handles for easy transport and field use.

• Canadian-engineered: Designed for local growing conditions and large-scale nursery production.

RootPro’s ArborSeries™ Fabric Grow Bags deliver professional-grade performance trusted by leading growers nationwide.

The Takeaway: Better Roots, Better Growth

At the end of the day, healthy roots grow healthy trees. By switching from plastic pots to RootPro pruning fabric grow bags, you’re investing in stronger root systems, faster establishment, and long-term plant success.

Experience the science of root pruning and the difference RootPro can make on your farm/nursery.

👉 Explore the RootPro ArborSeries™ Fabric Grow Bags and see why more professional growers are making the switch today.

www.rootpro.ca