Blue Shrimp Plant Seeds
Tips on How to Grow Blue Shrimp Plant
Soak the large seeds overnight and sow 3/4" deep outside after the last frost in your area or start indoors 4-6 weeks before the last frost, It will germinate in 7-21 days at 70F/21C. Watch out for damping off if you are starting them inside. Transplant to full sun and good soil for taller plants, partial shade for shorter, less floppy plants. It can be grown in pots. A half-hardy perennial that freely reseeds, in all but the warmest parts of North America it should be considered an annual. The leaves on this plant have a nice grayish/white "bloom" that makes them look more waxy. As the plant matures, the bracts (a leaf that acts like a flower petal) around the flower will change from green to purple to bright blue. Blue Shrimp Plant does well with heat but needs water. Harvest seeds before the pods hurl them around and plant in spring. This variety of blue gets 35in/90cm high and wide, taller in full sun. Deadheading will produce more flowers and more branching. It makes a good cut flower.
Flowering attributes: One-inch long, purple tubes surrounded by large, almost heart shaped, purple-blue bracts.
Leaf attributes: Glaucous, pale green-gray to blue, spoon-shaped foliage.
Light: Full sun to light shade.
Soil: For best results, plant in humus rich, moist but well-drained soil.
Fertilizing: Use a complete organic fertilizer when seedlings appear and monthly applications thereafter.
Propagation Methods: Sow seed in spring after danger of frost has passed.
Though subtly colored, Cerinthe major ‘Purpurascens’ draws comment wherever it inserts itself. The steely purple bracts and leathery gray foliage of this annual seem extraterrestrial poking up among more conventional herbaceous plants. It is an annual from the Mediterranean region with leaves like a eucalyptus and flowers like a purple euphorbia. This plant produces large black seeds that drop to the ground in late summer and germinate in fall to start the cycle all over again if growing conditions are right.
Noteworthy characteristics: Grayish-green foliage, deep-purple bracts. Can be used as an annual.
Care: Thrives in a variety of soils and does best in full sun or very light shade.
Propagation: Collect the seeds in fall and keep them in dry storage over winter. Sow the seeds in pots in several batches in spring so that flagging plants can be replaced as needed with fresh, young seedlings. Plant out the seedlings when they are about 2-3 inches tall. Seed can also be sown on site after danger of frost is past.
Problems: Slugs when plants are young.