About Seedbox: Named for the distinctive square shape of its seed pods, this native wildflower is becoming rare in the wild but can still occasionally be found in marshes and swamps. The Latin genus name Ludwigia honors Dr. Christian Ludwig, a professor of botany at the University of Leipzig in the mid-eighteenth century. Dr. Ludwig corresponded with Carl Linnaeus, who named this family of plants after his friend and colleague.
Seedbox Germination: Direct sow seeds in late fall, planting them just below the surface of the soil. For spring planting, mix the seeds with moist sand and store in the refrigerator for 60 days before planting; keep the soil lightly moist until germination. This seed can also be started indoors 6-8 weeks before planting in the spring.
Growing Seedbox Seeds: Keep seedlings well watered and control weeds. Mature plants may also need watering, since this plant thrives in very moist soil. This plant may self-sow in good growing conditions.
Harvesting Seedbox: These blossoms do not perform well as cut flowers, and are best enjoyed outdoors.
Saving Seedbox Seeds: At the end of the summer, this plant will produce unusual square seed pods. As soon as they turn brown, collect them and break them open to remove the seed. Store the seeds in a cool, dry place.
Detailed Seedbox Info: Origin: US Native Wildflower Other Common Names: Bushy Water Primrose, Rattlebox Duration: Perennial Bloom Time: Summer Height: 24-36 inches Spacing: 15-24 inches Light: Full Sun Soil Moisture: Medium USDA Zone: 3a-9b Seeds Per Oz: 791,000 Produces a red-stemmed plant with narrow, pointed leaves and 1/2” four-petaled yellow flowers.