Black pine, Vitex negundo, Sabina vulgaris, Parthenocissus tricuspidata, etc. As you may know, there is a pine tree on the top of Mount Tai, and there is a famous saying: Insist that the green hills will not relax and take root and break rocks. It's about pine trees. You don't need water and fertilizer, you can grow by yourself. You can plant seedlings and sow. Black pine, small cypress and pine can all be sold for money. Others can be green or burn firewood. As long as you find some soil to tidy up the seedlings first, you can grow with them and prune them once a year.