The Philodendron Silver Stripe, also known as the Heartleaf Philodendron or the Sweetheart Vine, is a tropical creeper plant with heart-shaped, lush foliage. The leaves of the Philodendron Silver Stripe are typically about three inches large with a pointy end and have a striking silver stripe running down the middle, which gives the plant its name. Like other variegated Philodendron hederaceum varieties, the Silver Stripe thrives in bright indirect light.