My new plant welcome kit: organic fertilizer, organic compost, organic garden soil, and red cedar mulch.
I have been doing a lot of fruit tree/vine planting, and I have a method now. I dig a hole twice as big around as the root ball that the plant came in, and a little deeper. Then I add a little compost and fertilizer at the bottom of the whole before I put the plant in. This encourages the plant’s roots to reach down for the nutrients. Then I fill in the hole with a mix of the existing soil and some good organic gardening soil. I top it off with more compost and fertilizer. To finish, I add a thick layer of mulch to retain moisture, and start watering deeply to help the plant establish itself.