My garden is looking very green as well. The plants all survived the winter except for one of my Hollyhocks, but the rest are coming up and growing.
This is the first time that I've been able to see Coreopsis growing for two seasons in a row. Figured it out last spring when the rabbits kept eating this plant down to the ground. A little chicken wire and some stakes helped keep the plants safe, and this year I will have golden yellow dye from the flowers.
This is a Rose of Sharon. It has some lovely periwinkle blue flowers on it. I haven't had enough flowers to dye with before, but maybe this year I will get enough to see what color I can get from them.
This is Yarrow. It grows like crazy, and it is the most beautiful soft green right now. I've used this plant as a dye before, and when I use copper as a mordant I get a very pretty green.