Dive Summary:

• When a capped landfill in Oakland, Maine sprouted wildflowers which attracted Monarch butterflies, transfer station manager John Thomas started to think about planting more flowers.
• Thomas recently received approval from Maine’s Department of Environmental Protection to plant a variety of seeds that are favored by butterflies.
• 40 pounds of annual and perennial seeds were sown on the site in July, with the hope of making it a haven for butterflies.

From the article:

Next year Thomas will dig up the flowers to examine their root systems.

That's the key because they need to be sure the flowers' roots don't infiltrate the 2 foot thick clay cap that's keeping this trash mountain and its' toxins secure.

If the project is successful, Thomas expects other transfer stations with landfills to follow suit.