Scientific Name:
Caltha palustris
Pronunciation:
KAL-thuh puh-LUSS-triss
Common Name:
yellow marsh marigold
Family Name:
Ranunculaceae
Plant Type:
Aquatic plant, Herbaceous perennial
Key ID Features:
Semi-aquatic; stems hollow, membranous sheaths at nodes; leaves alternate, most blades expand to 10-15cm long x 8-14cm wide, toothed; flowers are buttercup-like, 3-4cm wide.
Habit:
Dense, Spreading
Form:
Mounded
Texture:
Medium - coarse
Mature Height:
0.2 - 0.4m
Mature Spread:
0.3 - 0.6m
Growth Rate:
Moderate
Origin:
Europe, North America (Widespread in northern temperate regions)
Hardiness Rating:
Zone 3: (-40 to -34 °C)
Exposure:
Full sun
Soil/Growing Medium:
Bog
Water Use:
Aquatic
Landscape Uses:
Aquatic - ponds, Herb, Wetland - bogs
Additional Info:
Leaf Morphology:
Form:
Simple
Arrangement:
Alternate
Texture/Venation:
Soft flexible
Surfaces:
Glabrous
Colour in Summer:
Dark-green
Shapes:
Orbicular, Ovate, Reniform
Apices:
Rounded
Bases:
Cordate, Sagittate
Margins:
Dentate
Inflorescence Type:
Corymb
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Rotate/stellate
Ovary Position:
Superior
Colour (petals):
Yellow
Flower Time at Peak:
Apr, May
Fruit Type:
Aggregate fruit, Follicle
Fruit Colour:
Yellow, Brown
Fruiting Time:
Jun
Bark Morphology:
Smooth
Bark or Stem Colour:
Green, Red
Organ Modifications:
Rhizomes
Propagation:
Seed, Division - below ground parts
Maintenance:
Low
Pest Susceptibility:
Mildew, Rust (Pest resistant, Disease resistant, Deer resistant, Drought tolerant)
Course(s):
- CLT Training
Location(s):
- (CGW) Community Garden West
- (NRY) NuRserY
- (WLG) WoodLand Garden