Blooming Time

June
July
August
September

Exposure

True
Light Shade
True
Moderate Shade
True
Dense Shade

With soft lacy fern-textured blue green semi-succulent foliage, this colonizing/self sowing ground cover is a welcome addition to the shade garden. Here it fits nicely with native wildflowers, bulbs, ferns, and shade loving perennials-always complementary and never overpowering. And corydalis is good for more than just foliage. Flowering nonstop all summer with a succession of soft sulfur yellow, dainty, spurred flowers (much like fringed bleeding heart, Dicentra eximia), corydalis is a bloomer extraordinaire.

Details

Hardiness Zone:

5

Blossom Color:

Yellow to Chartreuse

Growth Habit:

Slow Spreading

Max Height:

15"

Texture:

Fine Texture

Recommended Spacing:

12" to 16"

We sell this plant in these containers:

#1 Pot
#1 Pot

Special Characteristics

True
Seasonal Effect
True
Moderate Area
True
Hummingbird
True
Bees
True
Small Area
True
Rebloomer

Features

Fern-textured blue green foliage with hummingbird attracting sulfur yellow tubular flowers borne nonstop early summer through fall.

Landscape Value

Rambling ground cover for naturalizing in shady settings. Tends to seed around a bit. Great companion plant.

Care

Watering:

Yellow Corydalis requires a fair amount of supplemental watering and often requires watering on a regular basis during the growing season.

Fertilizing:

Yellow Corydalis is a moderate feeder, benefiting from a couple of annual applications of slow release fertilizer. A spring application of a 3-1-2 ratio (such as a 15-5-10) can be applied at a rate of about 10 pounds per 1000 square feet, and during early fall, an application of a 2-1-2 ratio (such as a 10-5-10) can be applied to encourage root development and cold hardiness.

Pruning:

Yellow Corydalis is a deciduous plant (nonevergreen) and does not require pruning. It is perfectly acceptable to allow the dropped leaves to decompose and nourish the soil.

Companion Plants

Polystichum polyblepharumView
Fern, Japanese Tassel
Dryopteris affinis ‘Stableri’View
Fern, Male, Golden-scaled, Stabler's
Liriope muscari ‘Big Blue’View
Lily-turf, `Big Blue'
Heuchera ‘Forever Purple’ PP26,358View
Coral Bells, `Forever Purple'
Heuchera x ‘Palace Purple’View
Coral Bells, `Palace Purple'
Heuchera ‘Grape Expectations’ PP26,894View
Coral Bells, `Grape Expectations'
Heuchera ‘Timeless Night’ PP32,134View
Coral Bells, `Timeless Night'
Hosta ‘El Niño’View
Hosta, `El Niño'
Hosta ‘Halcyon’View
Hosta, `Halcyon'
Hosta ‘Krossa Regal’View
Hosta, `Krossa Regal'
Helleborus Frost Kiss® Pippa’s Purple™ PP27,121View
Lenten Rose, 'Pippa's Purple'
Helleborus FrostKiss® Dorothy’s Dawn™ PP28,010View
Lenten Rose, Dorothy's Dawn™
Helleborus Gold Collection® ‘Pink Frost’ PP21,063View
Lenten Rose, Gold Collection® `Pink Frost'
Helleborus FrostKiss® Molly’s White PP25,685View
Lenten Rose, Molly's White™
Helleborus x hybridusView
Lenten Rose
Matteuccia struthiopteris var. pennsylvanicaView
Fern, Ostrich
Onoclea sensibilisView
Fern, Sensitive
Osmunda cinnamomeaView
Fern, Cinnamon