Hoya put out vines that have large internodes (the area of the stem between the leaves). This is simply how they grow. Give them time & the leaves will eventually grow & look not-so-bare anymore! It foster love & romantic surrounding in your place. It is a fancy gift to send for your beloved & cause your love always thinking of you & your emotional memories. You can Send for your beloved. Heart Leaf Hoya, Hoya Kerrii - Sweetheart Heart Mother’s Day Plant Valentine’s Plant, Send For Beloved