Redwood Trees start to appear from Woodcutting Level 80 and may chopped using the Woodcutting skill awarding the player Woodcutting XP or be grown via Farming from Redwood Tree Seeds
awarding the player Farming XP. After both harvesting options player also receives Redwood Logs 
.
Redwood Logs are especially useful for Crafting as well as Cooking, which give +7 heat when burned. This may be increased to +8 with the easy Woodcutting achievement perk.