At Verbinnen’s Nursery we have spent the last 10 years investigating how to propagate and grow trees in trays and pots while maintaining proper root structure. Industry standard smooth wall pots and trays have the detrimental effect of re-directing roots in undesirable directions. This leaves an irreversible imprint on the roots, which can be a cause of decline at some point in the tree’s life.
After several years of trials we have settled on a system that uses coconut coir liner pots that air prune the roots when they reach the sidewalls and bottom of the pot. Air pruning roots is a more natural way of pruning that additionally induces further root initiation within the root ball. This creates a more dense, fibrous root system, allowing for quicker rooting out after planting.
Using coir pot liners has become our production standard for all of our tree species propagated in plugs trays. Growing in pots while maintaining good root structure is an area we are continuing to work on.
We look forward to a future built on strong roots.
Read an article we wrote for CNLA