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:Â 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
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Description
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:Â 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
