Sunshine Mimosa
Are you looking for a native groundcover that attracts pollinators and looks beautiful all year long? Sunshine mimosa (Mimosa strigillosa) is a fast-growing ground cover with adorable pink puffballs. It’s sometimes called “powderpuff mimosa”.
A popular trait of sunshine mimosa is the nastic response. When the leaves are touched it alters the turgor pressure in the extensor cells and causes the leaves to retract. When this happens potassium and chloride molecules leave the cells. This leads to osmosis, a mechanism that occurs when water flows towards the higher salt concentration. In this case, water flows out of those cells and reduces the turgor pressure so the leaves will close.
Do you have sunshine mimosa in your yard? What is your favorite quality of this plant?
Photo Credit: Aymee Laurain
