50 Seeds Annual Sweet Pea &lsquo;Knee High Mix&rsquo; Sweet Peas Make Excellent Cut Flowers. Sweet Pea Germination: To soften the hard coating of these seeds, soak them for several hours or overnight in warm water before planting. Most of the seeds should have softened and begun to swell, but if a few remain hard make a slight nick in the seed coat with a sharp knife. In climates with mild winters, these prepared seeds can be sown in the fall to bring the earliest spring blooms. Sweet Pea Seeds: As the seedlings develop, pinch off the top set of leaves occasionally to encourage branching. Keep in mind that pests such as birds and slugs can damage the young plants. Both seedlings and mature plants need regular watering for best growth; several applications of fertilizer will also bring these plants to their full potential. A layer of mulch will help conserve moisture as well as controlling weeds. Harvesting Sweet Pea: Cut these flowers early in the morning, controlling weeds. Harvesting Sweet Pea: Cut these flowers early in the morning, mmediately, stripping the leaves that will fall below the surface. Pick the blossoms often, since this encourages more to grow. Saving Sweet Pea Seeds: After the faded blossoms fall from the plant, bean-like pods will develop. When they turn from green to a light brown color, pick them from the plant and spread them out to dry away from direct sunlight. When they have dried, split them to remove the seeds; spread the seeds out to dry completely. Store the dried seeds in a cool, dry place. Detailed Sweet Pea Info: Origin: Introduced US Flower Other Common Names: None Duration: Annual Bloom Time: Summer to Fall Height: 12-18 inches Spacing: 4-6 inches Light: Full Sun Soil Moisture: Medium USDA Zone: 3a-9b Seeds Per Oz: 300 Produces a compact, bush-type sweet pea with large blossoms in shades of lavender, pink, white, and red. Our seeds/bulbs are guaranteed to be fresh but are NOT guaranteed as to results. Sorry, but there are too many variables in gardening that can impact germination. Flower seeds/bulbs are a live organism. Their germination depends on many factor including heat, cooling, sun, shade, moisture, time of sowing, etc. None of these things We can control so We can not be held responsible for them. So please do not ask for a refund, replacement or to return unused seeds/bulbs.