Each site has three field types: Full Sun, 50% Shade, and the Large Plant Field (also in full sun). In the first two fields plants are spaced 2 meters apart in and between rows, while plants are spaced 3 meters apart in the large plant field. All rows are covered with a layer of chipped wood mulch to a depth of 8-9 cm (3-4").
Twenty-four plants of each taxon evaluated are placed according to a randomized complete block design within two blocks oriented north and south (12 plants/ species/ block). There are three irrigation treatments, so each species has four repetitions on each treatment in each block for a total of eight reps per species per treatment in the field.
A view of the Full Sun 2-m field in Davis illustrating the randomized layout of plant material in June 2018. (SK Reid)