Sacred Groves are the natural dwelling places of the Spirits, and in olden times people used to conduct their rituals in them, which gave them the opportunity to communicate directly with each other. A Sacred Grove can be planted and dedicated to the Spirits of the area and the Deities that patronize the land.
Helping nature: taking care of the ecology, planting trees, feeding birds and cleansing the territory from physical and energetic debris is a truly spiritual endeavor that deserves all praise and reward. Which will certainly be, because, as we all know — as you treat the world, so it treats you!
You can choose any trees to plant a sacred grove. Take, for example, an oak tree. After all, the oak is an incredibly energetically strong tree, capable of charging its power all around; secondly, the oak is dedicated to the Spirits of Heaven and Earth, Protectors and Benefactors; thirdly, the oak lives from 300 to 800 years and the planted trees can be admired by distant descendants.
The location of the sacred grove is also important, but let the decision be made by those to whom the space will be dedicated. Think about your desire to plant an oak tree and the Spirits, having heard it, will tell you where and when to do it.
A sapling is needed to plant the future grove. You can buy it, but there is no guarantee that it will take root, so you can seed an acorn. In just 1 year, an acorn produces a miniature seedling that can be planted.
Growing a tree is not so difficult if you have a good acorn. Well, where to find it but in the forest under an oak tree. Acorns should be collected from September to early November (depending on the region). The best time to collect acorns is late September to early October. Prefer acorns that have recently fallen and are lying on the surface or have not fallen at all.