Water Hawthorne Pond Plant for Cold Water You get one bareroot grown water hawthorne with stems and leaves ready to plant This pond plant prefers cold water so it will be blooming while other pond plants are going dormant Water Hawthorn blooms profusely, with unusual, white, vanilla scented flowers Excellent choice for shady ponds and will tolerate slowly moving water Can stay in the pond during winter in most of the US. Recommended for USDA Hardiness Zones: 3-11