ROCKLAND - -They knit. They stealth through the night.  They’re the Mid-Coast Yarn Ninjas and they take street art seriously.

Self-described on Facebook as: “A group of stealthy rebel knitters, crocheters, and fiber artists who want to purty-up the city of Rockland with colorful displays of yarn graffiti,” the Ninjas agreed to be interviewed if they remained anonymous.

This past Sunday they "purtied" up a children's playground on Warren Street, lacing hand-knit spring flowers throughout the chain link fencing. Members worked on crafting individual crocheted flowers for more than a month and a half. "Originally, we planned this the first day of spring," said one Ninja. "But we got all that snow, so we delayed it a little bit to be more in time for Earth Day and sort of April showers-May flowers."

Other photos include Operation Farnsworth Trees from last summer's street party in which the Ninjas hoisted up long swaths of multi-colored knitting. In pairs and trios, they shuffled the yarn scarves around the trunks of the trees and began stitching the pieces together.

“We are just trying to start the group and thought these trees would be a good project,” said the lead Ninja. “We just told people to knit about 8 inches and drop it off to us. Our core group has probably been knitting for about five hours in anticipation of this event.”

Continuing she said, “If we get a big enough group, we just want to do something cool and intricate with coordinating colors. We have some more plans coming…”

All photos by Kay Stephens. She can be reached at news@penbaypilot.com.