Yellow harlequin
Corydalis flavula
Yellow harlequin is a delicate, spring-ephemeral wildflower that naturalizes beautifully in shaded woodland gardens, flowering early before the forest canopy closes. Plant in rich, moist, well-drained soil with plenty of organic matter and enjoy its small yellow blooms in March through May before it gracefully dies back for summer. It requires virtually no maintenance once established and will slowly self-seed to form charming naturalized colonies.
Care Level
Low
Sun
Partial Shade
Water
Moderate
Growth Rate
Fast
Mature Height
240″ – 480″
Soil
loam
Life Cycle
Perennial
Spacing
12″
Flowers
yellow
Watering Schedule
Every 7-10 Days • Water Lightly To Keep Soil Evenly Moist During The Growing Season; Reduce Watering As The Plant Goes Dormant In Summer
Soil pH
4.8 – 6.8
Temperature
-25° – 95°F
Mature Spread
up to 240″
Root Depth
Medium
Foliage
Coarse
Propagation: Seed
Native to
Attracts
Sources
Data: trefle, usda
Image: trefle.io — Taken Apr 4, 2016 by EOL − Fluff Berger (cc-by-sa)
No nurseries currently have this species in stock.