Alphabetical Plant Listing

Ranunculus flammula (Lesser Spearwort)

Lesser Spearwort, Miniature Spearwort, Creeping Spearwort, Tongue Buttercup


Ranunculus flammula (Lesser Spearwort) is a clump-forming, marginal, aquatic perennial prized for its cup-shaped, brilliant yellow flowers, 1/3 in. (less than 1 cm), resembling buttercups. Blooming in summer, each solitary flower usually features 5 egg-shaped petals surrounding a bouquet of yellow stamens gathered around green styles. Borne on slender stalks ascending from the leafy nodes of the creeping stem, they float above the foliage of semi-upright, red-flushed, narrowly lance-shaped, green leaves. The stems creep along the ground and root at the nodes, creating a dense tangled mat of stems and leaves. Great for the pond edge, this sprawling plant grows both above and below the water surface.

  • Grows up to 12-24 in. tall (30-60 cm) and 12 in. wide (30 cm). Will readily self-seed and spread via running stolons.
  • Performs best in full sun to part shade in still of slow-moving water at the margins of a pond or water garden or in wet, boggy soils. Can grow in shallow water up to 6-9 in. deep (15-22 cm).
  • No serious pest or disease issues. Deer resistant.
  • Propagate by seed in a cold frame as soon as ripe or by division.
  • All parts are poisonous if ingested. Sap may irritate skin..
  • Native to Europe, Northwestern Africa, Western Asia, North America.

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Requirements

Hardiness 4 – 8
Plant Type Aquatic Plants, Perennials
Plant Family Caltha - Marsh Marigolds, Ranunculus - Persian Buttercups
Exposure Full Sun, Partial Sun
Season of Interest Summer (Early,Mid,Late)
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 30" (75cm)
Water Needs High
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moisture Retentive, Poorly Drained
Characteristics Showy
Native Plants United Kingdom, United States, Alaska, California, Midwest, Michigan, Minnesota, North Dakota, Wisconsin, Northeast, Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Pacific Northwest, Idaho, Oregon, Washington, Rocky Mountains, Colorado, Montana, Utah, Wyoming, Southeast, West Virginia, Southwest, Nevada, Arizona, New Mexico
Tolerance Deer, Wet Soil
Garden Uses Bog Gardens, Ponds and Streams, Rain Gardens, Water Gardens

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Eileen Kumpf, Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 4 – 8
Plant Type Aquatic Plants, Perennials
Plant Family Caltha - Marsh Marigolds, Ranunculus - Persian Buttercups
Exposure Full Sun, Partial Sun
Season of Interest Summer (Early,Mid,Late)
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 30" (75cm)
Water Needs High
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moisture Retentive, Poorly Drained
Characteristics Showy
Native Plants United Kingdom, United States, Alaska, California, Midwest, Michigan, Minnesota, North Dakota, Wisconsin, Northeast, Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Pacific Northwest, Idaho, Oregon, Washington, Rocky Mountains, Colorado, Montana, Utah, Wyoming, Southeast, West Virginia, Southwest, Nevada, Arizona, New Mexico
Tolerance Deer, Wet Soil
Garden Uses Bog Gardens, Ponds and Streams, Rain Gardens, Water Gardens

Guides with Ranunculus - Persian Buttercups

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