Christmas tree cultivation has shifted toward the production of higher-quality trees, increasing land quality expectations as well. Indeed, some species of tree, such as the Fraser fir, are unable to grow on low-quality, marginal farmland. Flat or gently rolling land is preferred to that with steep slopes and inclines, which is prone to erosion and fluctuations in fertility. Noticeable obstructions, such as rocks, fences or significant underbrush, are also undesirable. Like all crops and plants, Christmas trees require a specific set of nutrients to thrive. There are 16 elements crucial for growth; of those, three are obtained through air and water: hydrogen, carbon,
James Douglas, Lord of Douglas James Douglas, Lord of Douglas Sir James Douglas (also known as Good Sir James and the Black Douglas) (c. 1286 – 25 August 1330) was a Scottish knight and feudal lord. He was one of the chief commanders during the Wars of Scottish Independence. He was the eldest son of Sir William Douglas, known as "le Hardi" or "the bold", who had been the first noble supporter of William Wallace (the elder Douglas died circa 1298, a prisoner in the Tower of London). His mother was Elizabeth Stewart, the daughter of Alexander Stewart, 4th High Steward of Scotland, who died