Hoya kerrii is named Sweetheart Plant because of the valentine shaped leaves. It has thick, succulent type leaves that are indeed shaped like flat hearts.
Hoya kerrii is a climbing plant that can grow up to 4 meters high. Stems have a diameter of 7 mm. The leaves are 6 cm wide, 5 mm thick. Adult plants show inflorescences of 5 cm diameter and up to 25 flowers. They produce small balls of nectar, colored red to brown. It stays unchanged for many months. Then it grows quickly, maybe one meter by year.
Start planting when the temperature is stable. Use a small pot for one leaf. Re-pot when a plant grows drastically. Take care of roots while planting. Keep a safe distance between two plants as they should not collide with each other.