Myriophyllum verticillatum
whorled water milfoil
A submerged aquatic perennial with branched shoots bearing whorls of leaves pinnately divided into hairlike segments, with minute dull red flowers in spikes above the water surface in summer. Has slightly longer leaves than M. spicatum
Size
Ultimate height
Up to 10cmTime to ultimate height
5–10 yearsUltimate spread
1–1.5 metresGrowing conditions
Moisture
Poorly–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Red | Green | ||
| Autumn | Green | |||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H4Botanical details
- Family
- Haloragaceae
- Native to the UK
- Yes
- Foliage
- Deciduous
- Habit
- Submerged
- Genus
Myriophyllum can be submerged or marginal aquatic rhizomatous perennials, with finely dissected submerged leaves and small or minute flowers, solitary or in spikes from the leaf axils
- Name status
Correct
How to grow
Cultivation
Grow in baskets of loamy soil in water at a depth of 1m in full sun. See pond plants for further advice
Propagation
Propagate by cuttings of root segments
Suggested planting locations and garden types
- Wildlife gardens
- Low Maintenance
Pruning
Cut back regularly to avoid excessive growth
Pests
Generally pest-free
Diseases
Generally disease-free
Get involved
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