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Planting Instructions for Corydalis lutea:

Bloom Time:  Summer Light:  Part shade to full shade
Soil:  Humus-rich, moist but well-drained Moisture:  Average
Planting Depth:  1/2" deep, mulch lightly Spacing: 15 to 18" or more

Upon arrival:  Unpack box and check that you have everything on your packing list. If condensation has formed on the inside of the bag, open and let it air out slightly. Plant everything within a day or two of arrival.

Soil/Location:  Plant your Corydalis in a shady spot in humus-rich, well-drained, woodland type soil. Add compost or peat humus to enrich and loosen the soil, if needed, amending the entire area for best results. Keep the soil light and airy for perennials, so cover them with loose soil and don't pack them in after planting.

Moisture:  Corydalis doesn't mind occasional moisture but should not be wet and will be very drought tolerant when established.

Spacing:  15 to 18" or more

Depth:  Plant with the top of the crown about 1/2" below soil level and then mulch them lightly after planting. This keeps them cool and moist in the summer and protects them from drying winds in the winter.

General Instructions:  Enrich your garden with compost or peat humus, as needed, and mix a couple teaspoons of garden food or bone meal into the planting hole. Plant the roots at the depth listed, then water in lightly. Corydalis prefer a slightly dry start so we only water them in once and then wait for them to sprout. Too much moisture early could damage the new shoots before they get a chance to emerge. Once they are actively growing it is alright to give them supplemental water a couple times a week, allowing the soil to dry between watering, but once established they are very drought tolerant.

Landscape Uses:  Corydalis lutea makes an excellent ever blooming groundcover in areas of dry shade where other plants may struggle. It will tolerate root competition and will even grow in the shade of evergreen trees. In the woodland garden combine it with ferns, hostas, bleeding hearts (Dicentra), toad lilies (Tricyrtis) and other shade plants.

Self-sown seedlings are very common and very prolific but are easy to weed out and remove if needed, but usually work great when given an area to naturalize.

 
 
Hallson Gardens
PO Box 220
Brooklyn, MI 49230
517-592-9450

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