Transform your pond or water garden with the stunning Caltha palustris 'Flore Pleno', known as the Double Marsh Marigold or King Cup. This hardy perennial boasts fully double, radiant yellow flowers that bring a burst of colour to any water feature. The glossy, compact foliage forms neat clumps, providing an ideal backdrop for the vibrant blooms. Caltha palustris 'Flore Pleno' flourishes in moist, boggy soil or when submerged in shallow water along pond edges. This plant is a must-have for water garden enthusiasts seeking a low-maintenance, yet visually captivating addition. With its resilience in zones 1 & 2, you can enjoy the charm of this marsh marigold year after year. Add a touch of elegance and natural beauty to your aquatic landscape with this delightful perennial. How to Grow Caltha palustris 'Flore Pleno'Light: Full sun to partial shade. Temperature: Thrives in cooler climates; hardy down to USDA zone 1. Watering: Keep soil consistently moist; ideal in boggy or submerged condi