Plant Profile: Ranunculus

Taxonomy: Ranunculus

Names

Butter Cress, Buttercup, Crowfoot, Figwort, Persian Buttercup, Ranunculus, Spearwort

  • Photo of Ranunculus (Ranunculuss)

Phonetic Spelling:ra-NUN-ku-lus

Genus:Ranunculus

Species:

Family:Ranunculaceae

Ranunculus is a genus that encompasses both perennial and annual herbs belonging to the Ranunculaceae family. Typically, the leaves are arranged alternately and feature a palm-like lobed or divided structure. The flowers, which bloom in April and resemble thimbles, are predominantly yellow, although various cultivars have been developed in shades of orange, pink, red, and white. Following the flowering period, these plants produce clusters of small, dry achenes, which can lead some species to become somewhat weedy in disturbed environments. Nevertheless, they are excellent for attracting pollinators and provide nourishment for hummingbirds. These plants are ideal for use in flower beds, borders, rock gardens, and as fresh cut flowers.

For optimal growth, Ranunculus thrives in full sun to partial shade. When planting, ensure the tuberous roots are buried about 3 inches (7.5 cm) deep and spaced 3 to 6 inches (8-15 cm) apart. It is advisable to soak the tubers for an hour prior to planting or to water them thoroughly after they are in the ground. The foliage typically dies back during the summer months.

Ranunculus Feature Summary

Ranunculus Image Gallery

Tags

#hummingbirds
#poisonous
#full sun tolerant
#annual
#perennial
#yellow flowers
#summer bulbs
#pollinator plant
#spring flowering bulbs
#partial shade tolerant
#problem for cats
#problem for dogs
#problem for horses

Similar Plants

Ranunculus is often confused with:

Ranunculus Feature Summary

Attributes
Store tuberous roots dry at 50-55 degrees F (10-13C).
Perennial
Annual
Fruit
Fruit a head of small, dry achenes.
Flowers
Flower commonly yellow, thimblelike, often shiny. Cultivars in many other colors. Blooms around mid-spring and summer
Pink
White
Gold/Yellow
Red/Burgundy
Green
Orange
Spring
Summer
Leaves
leaves alternate, palmately lobed or divided
Compound (Pinnately , Bipinnately, Palmately)
Poisonous to Humans
Ingestion causes burning of the mouth, abdominal pain, vomiting, hypersalivation, depression, anorexia, wobbly gait, and bloody diarrhea. Skin redness, burning sensation, and blisters following contact with cell sap.
Protoanemonin, released from the glycoside ranunculin.
Seeds
Leaves
Stems
Sap/Juice
Flowers
Bark
Fruits
Roots
Whole Plant Traits
Annual
Poisonous
Bulb
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Less than 12 inches
Landscape
Cutting Garden
Pollinator Garden
Woodland
Naturalized Area
Pollinators
Hummingbirds
Poisonous to Humans
Problem for Cats
Problem for Dogs
Problem for Horses
Weedy
Contact Dermatitis

Ranunculus Attributes

Ranunculus: Country Or Region Of Origin

USA, Eurasia

Ranunculus: Bulb Storage

Store tuberous roots dry at 50-55 degrees F (10-13C).

Ranunculus: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Ranunculus Fruit

Ranunculus: Fruit Description

Fruit a head of small, dry achenes.

Ranunculus: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Ranunculus Flowers

Ranunculus: Flower Description

Flower commonly yellow, thimblelike, often shiny. Cultivars in many other colors. Blooms around mid-spring and summer

Ranunculus: Flower Color

filter_vintage
Gold/Yellow
filter_vintage
Green
filter_vintage
Orange
filter_vintage
Pink
filter_vintage
Red/Burgundy
filter_vintage
White

Ranunculus: Flower Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Ranunculus: Flower Bloom Time

Winter
Spring
Summer
Fall

Ranunculus Leaves

Ranunculus: Leaf Description

leaves alternate, palmately lobed or divided

Ranunculus: Leaf Color

spa
Green

Ranunculus: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Ranunculus: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Ranunculus: Hairs Present

No
Yes

Ranunculus Poisonous to Humans

Ranunculus: Poison Symptoms

Ingestion causes burning of the mouth, abdominal pain, vomiting, hypersalivation, depression, anorexia, wobbly gait, and bloody diarrhea. Skin redness, burning sensation, and blisters following contact with cell sap.

Ranunculus: Poison Toxic Principle

Protoanemonin, released from the glycoside ranunculin.

Ranunculus: Poison Severity

High
Low
Medium

Ranunculus: Causes Contact Dermatitis

No
Yes

Ranunculus: Poison Part

Bark
Flowers
Fruits
Leaves
Roots
Sap/Juice
Seeds
Stems

Ranunculus Whole Plant Traits

Ranunculus: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Ranunculus Cultural Conditions

Ranunculus: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Ranunculus: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Ranunculus Stem

Ranunculus: Stem Is Aromatic

No
Yes

Ranunculus Landscape

Ranunculus: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Ranunculus: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Ranunculus: Attracts

Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees

Ranunculus: Problems

Allelopathic
Contact Dermatitis
Frequent Disease Problems
Frequent Insect Problems
Invasive Species
Malodorous
Messy
Poisonous to Humans
Problem for Cats
Problem for Children
Problem for Dogs
Problem for Horses
Short-lived
Spines/Thorns
Weak Wood
Weedy