I’ve planted lots of butterfly bushes in my yard. By lots I mean more than 10. I started with two – a white one and a purple one – ordered online as bare roots; all the rest are children of those plants. I got them originally because I love lilacs but still don’t have a lilac that’s old enough to flower and because butterfly bushes attract butterflies, hummingbirds, and bees. They flower from July until frost, generally late October/early November here in Northern Virginia, which is far longer than the spring bloom-time for lilacs. The blooms do not smell at all like lilacs, nor are they as powerful smelling as lilac blooms.
I read somewhere (online, probably) that all parts of the plant can be used as a natural dye to produce greens/greenish-blues/teals. I also know that if you dead-head the blooms (trim the spent blooms), a butterfly bush will put more of it’s energy into making even more blooms. Yesterday I dead-headed all but 2 butterfly bushes (the untouched ones are too big for me to get all the spent blooms off of), which when weighed, was 3lbs 6oz of spent blooms with a few leaves, active flowers, and lots of insects.
At 2:30, I put 1lb of the spent blooms in my enamaled lobster pot with enough tap water to cover the plant material. I have an electric buffet stove with 2 burners that I set up on my screened-in porch and started the pot over medium heat. I should have turned the heat up to medium high or high – about 3 hours later, the green parts of the plant material had faded to a mustard yellow, the blooms that were still purple turned kind of a translucent white-gray, and many spiders had escaped the pot aided by a giant chopstick between the pot rim and a potted plant.
I strained most of the plant material from the dye liquor, but didn’t use a strainer fine enough to catch the individual shriveled brown flowers. Into the pot went:
10yd sample skein of pre-mordanted yarn (alum)
10yd sample skein of pre-mordanted yarn (copper)
10yd sample skein of pre-mordanted yarn (iron)
4oz pre-mordanted merino (copper)
48g of the same merino previously mordanted and dyed with mint
An hour & a half later, I turned the heat off and left the fiber in the dye pot overnight. Here are the sample skeins after 30mins:
I’m surprised that I’ve got what’s essentially a deep yellow with a hint of green in the alum & copper-mordanted fibers (the iron became that deep khaki color). I wonder now if the leaves and stems alone would yield a different color.