Can I plant on the same plot different tree types with different rotation times?

Yes, you can - in fact, we encourage mixed-species planting as it leads to higher biodiversity and resilience in your newly planted forests. If you do decide to plant mixed, your contract length will depend on your management plan - for example, if you choose to harvest at different times, the contract length will be decided based on the longest-rotation species (but you can still have multiple harvests of the shorter-rotation species). If you are planning a single harvest, that will define the length of the contract.