With unusual cream and lime green flowers tree peony 39lu mu ying yu39 is a plant that stands out in the garden tree peony plants are the perfect plant for adding plenty of colour to gardens early in the year mature specimens can have in excess of one hundred large blooms measuring up to 25cm 40103441 or more in diameter they are an ideal plant for garden borders and the flowers can be cut for indoor vases they flower year after year with few problems and are very hardy and