1. Planting: Plant your tree in a sunny location where it has plenty of room to grow. It’s an excellent tree to plant near a stream or pond where it can get all the water it needs. Ensure the soil is well-draining as drainage is essential to the tree’s health. The rainbow can also tolerate some salt spray, humidity, and moisture.

Before planting, water the tree well. Then, dig a hole just as deep as the root ball and twice as wide. Carefully remove the tree from its pot, ensuring not to disturb the root system too much.

Position the tree in the hole ensuring that it is standing straight and begin backfilling the hole. Tamp down lightly on the soil as you go to ensure there are no air pockets. Water the tree deeply and add mulch around the base of the tree to conserve soil moisture and keep competing growth away from the planting site.

2. Watering: Provide your tree with regular water and never let the soil get excessively dry. It’s the perfect tree to plant near bodies of water so that it can get all the water that it needs.

3. Fertilizing: Your tree will grow well without the need for fertilizing. However, if your tree is struggling, choose a liquid fertilizer low in phosphorus and dilute it (or use half-strength) but generally fertilizing is not required.

4. Pruning: Pruning is recommended to help maintain the tree's height and overall shape. Pruning should be done in the summer, but avoid pruning during excessive humidity.