Arbor Day 2014 has come and gone, but Pornhub is still offering users a way to make greener use of their, um, private moments.

In the week following Arbor Day, which fell on April 25, the porn site will plant one tree for every 100 videos watched in their "Big Dick" category. The campaign is cheekily titled "Pornhub Gives America Wood".

According to a counter listed on the campaign's safe-for-work website, more than 11,000 trees will be planted.

"At Pornhub, we give a countless amount of wood every day," Pornhub communications representative Mike Williams told Mashable. "Playing off that, we saw an opportunity to promote our brand and give back to the community." Williams referenced a fundraiser in 2012 for Breast Cancer Awareness Month, when the company donated funds based on clicks in several of their breast-related categories.

Pornhub will choose one of three potential tree-planting organizations to help carry out their campaign: Arbor Day Foundation, Trees for the Future or American Forests. The type of trees, as well as where they will find their final homes, will depend on which organization Pornhub chooses, as each group plants trees indigenous to certain areas of the country.

Users will have until midnight on May 2 to power through as many videos in the specified category as possible. After that, Pornhub will finalize an agreement with a tree-planting organization and begin planting.

"Whatever the species, our trees will grow up to be long and hard and, with any luck, they will go on to spread seed of their own," Williams said.