It’s summer and you find yourself in a TEOTWAWKI situation. You wish you had access to more trees or shrubs that produce food. You realize things won’t be back to normal anytime soon, so investing the energy and time now seems like a good idea for the payoff in calories of fresh fruit or nuts a few years into the future. Propagation by seed is one easy way to get more trees, but you’ll have to wait until late summer or fall to harvest seeds, and then let them cold stratify (i.e., simulate winter conditions via subjecting them to cold temperatures) over winter. Additionally, most trees and shrubs won’t breed true (i.e., meaning the seeds will not grow into the delicious food-producing nursery cultivar tree you gather seed from). So how else can you propagate a tree or shrub? This article covers one of the easiest methods for tree or shrub propagation, air layering.
Materials needed (with possible substitutions discussed in this article):
1. Clear Kitchen Wrap ~ 18 inches
2. Peat Moss ~ 1 handful
3. Aluminum foil ~ 18 inches
4. Rooting hormone (~0.8% IBA strength)
Note: Items 1-3 on the above list are be easily substituted or improvised in a TEOTWAWKI scenario. Methods for improvising rooting hormone are not easy. Air layering can be performed without rooting hormone with much lower success rates. This article does discuss how to create your own rooting hormone solution using Salix spp. (i.e., trees in the willow genus) trees.
Air layering has been practiced for thousands of years. When a node (botany term for the part of a plant where leaves or branches form) containing part of many plant species finds itself tipped down into/onto the ground, roots form. For example, if a branch is bent over to the ground and kept in place using a rock, roots may form under the rock and over time the roots can support new shoots and live independently of the original plant. This process, which clones the original plant, is known as layering. Plants can be layered using the tip of a branch or mid branch. Air layering is simply what you call it when we artificially bring the ground up to the plant. Other common names for air layering include pot layering (because a special pot with premade holes is used to hold soil next to a branch) and Chinese layering (the method is believed to have been developed by the Chinese). Air layering can be done in many ways, which will be covered below.
But first, let’s understand why air layering is a good idea for a novice in plant propagation and well suited for a TEOTWAWKI situation. Note, several other plant propagation methods will be mentioned briefly, not as a how-to-guide, but to contrast them with air layering.Continue reading“Tree Propagation Through Air Layering – Part 1, by T.S., PhD”