
Alternateflower watermilfoil
Myriophyllum alterniflorum
Alternateflower watermilfoil is a submerged aquatic perennial ideal for garden ponds, water features, and naturalistic wetland plantings. It grows best in clean, cool water with moderate sunlight and plays an important ecological role by oxygenating water and providing habitat for aquatic invertebrates and fish. Monitor growth regularly as aquatic milfoils can spread vigorously in favorable conditions.
Care Level
Moderate
Sun
Partial Sun
Water
Moderate
Growth Rate
Moderate
Mature Height
6″ – 36″
Soil
peat
Life Cycle
Perennial
Spacing
12″
Watering Schedule
Continuously Submerged Or Consistently Waterlogged • Requires Permanent Water Submersion; Suitable For Ponds Or Aquatic Containers With Still Or Slow-Moving Water
Soil pH
5 – 5.5
Temperature
-20° – 85°F
Mature Spread
up to 24″
Root Depth
Medium
Foliage
Medium
Propagation: Seed, Cutting
Native to
Attracts
Sources
Data: trefle, usda
Image: trefle.io — Taken Jun 1, 2022 by Florence Caron (cc-by-sa)
No nurseries currently have this species in stock.