Mangkala Ubol This water lily is as easy to grow as it is beautiful. This Extra-large Water lily (Medium) was introduced by N. Nopchai Charnsilpa in 1997. Massive Big bold peach/pink flowers are held above deep green leaves. This plant will give you 6 to 8 inch flowers from May till frost. Do not be concerned if your plant loses some leaves after shipping, this is normal. We ship large, ready to bloom Plants. We suggest planting your new Plant in at least a three gallon pot Cold Hardy to zone 5.