Planting Oak Trees

We’ve been eyeing a dying chestnut oak tree on the side of our house for some time now. The size of it’s base is formidable and stands as a reminder of its once splendor. Over the years, the base of the tree had been hollowing out and it was time to bring it down, especially as the rains and winds approach. The kids watched in awe, as the tree surgeons dismantled this once magnificent tree. They asked me several questions: how old was it? why did it die? how long will it take for a new tree to grow here?

So, to help answer their questions, we decided to raise some oak trees from the beginning. This was the perfect time of year for it – the time when the soft thuds of acorns hitting the ground could be heard echoing between the trees. The kids gathered acorns of 3 varieties, white oak, chestnut oak and red oak. After conducting a float test to see which ones were viable, they twisted off the caps and planted them in jars with soil. It could take anywhere from 4-6 weeks for the acorns to germinate, depending on the species. Somer species of oak will not germinate unless exposed to cooler temperatures such as the red oak acorn. We will keep these in the refrigerator to simulate the ideal physiologic environment.

In the mean time, we got to work trying out a cross cut saw. I recently purchased a Lynx 4′ cross cut saw for simple tasks around the property that would not require a chain saw. Safer and also a whole lot of fun. We cut a cross sectional cookie slab, and the kids got to work counting the rings…..104 in total! This tree had been around for more than a century. We applied a generous coating of pentacryl (a wood stabilizer to it) and will let it dry for another season.

Lynx 4′ crosscut saw. A lot of work, but a lot of fun.

Pentacryl is wood stabilizer, it can help reduce “checking” as the wood dries. Wood “checking” refers to the splits and cracks that happen when the wood shrinks as it dries. Wood shrinks much more along the growth rings (radially) than it does across the rings (tangentially), so this can lead to cracking or “checking”. Pentacryl is applied while the wood is still green to help stabilize the wood. In many cases, the checking of wood is unavoidable.

104 year old chestnut oak slab with pentacryl applied. I will let this dry for another season before planing and sanding. It could make a cool charcuterie board or table/stool.

So while we wait for the acorns to germinate, the kids have learned a lot about oak trees, and their livespans and how like all things can be susceptible to disease. An adult tree could provide enough oxygen for 2 adult lifetimes. With the felling of this tree, we hope to raise several more in its place. Time will tell! Stay safe and healthy out there everyone.