RAGWORT, GROUNDSEL Ligularia dentata
LigulariaIn our opinion, this is one of the most valuable perennials because it has all-season appeal! Leaves are large and rounded, and stand out, a notable focal point in the garden. Then, in summer, masses of yellow flowers appear, and last for many weeks. Flowers are so rich-yellow, they almost glow, especially in dim light!
Height: 30" tall leaves, 48" tall flowers
Location: With normal garden conditions this can be grown in shade or part sun. Full sun locations should have slightly moist soil. This plant can also be grown in a wet area.
Hardiness zones: 4-9
Seeds per pack: 10
Germination: As with many perennial seeds, these seeds can benefit from a period of moist cold to help them break dormancy. 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 4-6 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. Seedlings will sprout a few weeks, or occasionally several months, after the warming period.
Ligularia seeds also do very well being planted directly outdoors in the fall, where they will naturally germinate in the spring. Be sure to mark where they are planted.