GIANT JAPANESE CORYDALIS Heterocarpa
This Corydalis is an impressive, clump-forming perennial that grows strong and quickly, forming a lush clump of ferny leaves, topped with tropical-looking spikes of flowers! This plant is fully hardy, and easy to grow, sure to impress. Probably the largest Corydalis available. Plants form bulbs.
Type: Hardy perennial
Location: Full sun or part
Hardiness zones: 5-9
Note: These seeds and plants contain poisonous parts. Please keep these seeds and plants in a safe place.
Seeds per pack: 10
Germination: As with many hardy perennials, these seeds can benefit from a period of moist cold to help them begin to grow. This is done by giving them a cold 'winter' period (artificial or natural), and then a warming to simulate 'spring', and time to grow! Here's how this can be done:
Obtain a planting container that has holes in the bottom for excess water to drain. Place the seeds just under the surface of your growing medium, and water. Place your container in a cold area (but not freezing, perhaps a refrigerator) for 5-6 weeks. Once the cold period is completed, place the container at room temperature for them to germinate. Be sure to keep the soil moist during this entire germination period.
Alternatively, these seeds can also be planted outdoors in fall, winter, or early spring, while temperatures are still cold (but ground is workable) to germinate naturally in spring. Be sure to mark the area where you planted them, and that the soil is consistently moist.