Hydrocleys nymphoides
water poppy
- Position: full sun
- Depth of water: 0-20cm (0-8in)
- Rate of growth: average to fast
- Flowering period: June to August
- Hardiness: frost tender (will need winter protection)
With its vibrant yellow flowers adorned with a distinctive purple centre, this tropical aquatic plant brings an exotic splash of colour to ponds and water features. Its oval green leaves float gracefully on the water's surface, providing some cover for aquatic wildlife during warmer seasons but are not suited for cooler regions of the UK and typically do not survive winters outdoors. Best planted in shallow water and basking in full sun at the pond's edge, Hydrocleys nymphoides attracts a variety of bees, making them a delightful addition to any wildlife-themed water garden. Despite each flower's brief lifespan of just one day, their abundance ensures a summer-long display.
To ensure long term success, plant approximately one inch into the pond soil up to a water depth of 20cm (8in). Water poppies will grow outward onto the water’s surface with floating stems. This plant is not hardy, and best used as an exotic annual as it is difficult to overwinter. Remove decaying plants after the first frosts.