Lesser Spearwort (Ranunculus Flammula) is a perennial aquatic in the Ranunculaceae family with easy care difficulty. It requires very high watering and full sun or partial shade light in USDA hardiness zones 3-8. This plant is toxic to cats and dogs — keep it out of reach of pets.

Ranunculus flammula is a perennial wetland plant known for its bright yellow flowers and spear-shaped leaves, native to North America and Eurasia.

Lesser Spearwort

Lesser Spearwort

Ranunculus Flammula

Ranunculus flammula is a perennial wetland plant known for its bright yellow flowers and spear-shaped leaves, native to North America and Eurasia.

Quick Facts

Type
aquatic
Lifecycle
perennial
Care Difficulty
Easy
Water Needs
very high
Light
Full Sun, Partial Shade
Hardiness Zones
3-8

Safety

⚠️
Not Pet Safe
⚠️
Not Child Safe
☠️
Toxic

Growing Conditions

Soil Types:loamy, silty, peaty
Indoor:No
Outdoor:Yes
Garden Use:groundcover, erosion control, pollinator support

Care Calendar

Monthly care tasks for Lesser Spearwort

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Lesser Spearwort
Lesser Spearwort detail

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Taxonomy

Family:Ranunculaceae
Genus:Ranunculus
Lesser Spearwort Care Guide - How to Grow Ranunculus Flammula | PlantPeek