• Approximate height: Foliage: 2½ cm (1 inch) Flower: 5cm (2 inches)
• Recommended water levels: plant in moist or wet soil, or very shallow water
• Flowering time: June to July
• Flower colour: Pink
• Supplied in a 9cm pot
  

This pretty British native plant has fine foliage and gorgeous little cup-shaped pink flowers in summer. Low-growing, very small-leaved, and with a slow to medium creeping habit, it can be used to carpet the edge of ponds or underplant taller species, and is especially good for tiny ponds. Found in the wild in wet, open sites around the edges of water bodies or in flooded pastures, it flowers best in a sunny spot. The foliage is semi-evergreen depending on how exposed its position is; the fifth picture shows the foliage in January. Also sometimes known as Lysimachia tenella. 

Most catalogues place bog pimpernel in with the true pond plants, because it can be grown in very shallow water, as opposed to simply moist soil like the other marsh plants. However, because the plant is so small we wouldn't recommend more than about one centimetre of water over the soil. Therefore, for practical reasons, we feel it is more suited to be in the marsh plant section.  

If designing a planting scheme, we recommend approximately 4 Anagallis tenella plants per square foot of ground, or 2 plants per linear foot of pond edge. Read more here on how to