One of my wholesale producers of perennials has listed flats of 32 lilies in plugs. Lilium Aurelian Hybrids.
Common Name: Lily
Description: Spectacular colors and color patterns in these fragrant hybrids between Lilium longiflorum (Trumpet Lily) and Lilium henryi. Colors include shades of pink, orange, lavender, yellow, pumpkin, and white. Stunning every summer in our Hillside Border garden.
Zone: 4
The plugs would be 2 1/4 X 3"
I have never seen this before. How do you think they are they producing these?