Tropical waterlilies are spectacular flowering water garden plants, but they are tender and can’t tolerate cold or frost. If you live in colder climates and don’t grow them in a tropical house, you are faced with two choices. Either treat them as annuals or overwinter them.
Kathy Jentz, editor of the Water Garden Journal for the International Waterlily and Water Gardening Society, recommends the latter. She says: ‘Tropical waterlilies can be expensive and will not survive freezing temperatures, so they should be overwintered as dormant plants.’
