There are also many wild plants such as corn mint, hairy buttercup, sea aster and ox-eye daisy.

Ranunculus sardous is a species of buttercup known by the common name hairy buttercup.

Due to the disturbance hairy buttercup (Ranunculus sardous), along with other arable weeds appear here in one of its few sites on Scilly, and the only known site for wall-rue (Asplenium ruta-muraria) in the Isles of Scilly is just to the south.

The park was created by the London Docklands Development Corporation (LDDC) in 1994, after a survey identified rare and unusual plant species in the area, some presumed carried in by shipping, such as Hairy Buttercup (Ranunculus sardous), Walthamstow Cress, and Unreel's Wormwood.