How to plant a dappled willow tree standard?

Question

How do I prepare the soil?
Do I fertilize at planting time? What type of fertilizer do I use?
Should I mix peat moss in soil to retain more moisture?

Answer 1

This plant is easy to grow; thrives in moist, enriched soils. Water deeply and regularly during the first growing season to establish an extensive root system; reduce frequency, once established. Apply fertilizer in spring.

https://www.gardeningknowhow.com/ornamental/trees/willow/dappled-japanese-willow.htm