Blue Waterleaf

Hydrolea ovata (Blue Waterleaf or Hairy Hydrolea) is a spiny, moisture-loving perennial native to the southeastern U.S., including Texas. This bold, bright bloomer thrives at the edges of ponds, lakes, and slow-moving streams—often standing in water for weeks without issue. Covered in rough hairs and armed with small spines, it forms dense, striking colonies topped with vivid blue to purple funnel-shaped flowers that attract bumblebees, butterflies, and birds from mid-summer through fall. Its unique structure and color make it a standout in bog gardens, rain gardens, and wetland habitats.

Scientific Name: Hydrolea ovata

Origin: Texas and Southeastern U.S.

Native Habitat: Streambanks, pond and lake edges

Height: Up to 3 feet

Spread: 2 to 3 feet (sprawling habit)

Light: Full Sun to Part Shade

Water: Moist to Wet (can tolerate standing water)

USDA Zones: 7–10

Bloom: July to October