Tall Coreopsis Seeds or Coreopsis tripteris Open Pollinated Heirloom 100 Seeds per pack Non-GMO - US grown - Open-pollinated - Untreated Flat Rate Shipping However Many Packs of Seeds Ordered. Also Free Shipping on seeds when combine with any item in our Store. If your shipping is not adjusted at checkout a refund for the difference will be sent when we process the order. We are a licensed plant and seed dealer located in Middle Georgia. Please contact us with any questions or concerns. Thank you for stopping by ~ Follow Smoot's Farms on other social media platforms! _____________ The flower of this species is similar to other Coreopsis varieties, but these bright yellow flowers always come out on top because they are very tall. This trait makes it a fine choice for a tall-grass prairie restoration. Sowing: Direct sow in late fall, planting the seed on surface of the soil and compacting it firmly. The Tall Coreopsis seeds will germinate soon and overwinter as a small cluster of leaves, sending up a flowering stalk in the summer. For spring planting, mix the seed with moist sand and store it in the refrigerator for 30 days before direct sowing. Keep the soil evenly moist until germination, which should occur within 10-15 days. The treated Coreopsis Tripteris seeds can also be started indoors 6-8 weeks before the last frost of spring; plant the seeds on the surface of a flat, keeping the moisture consistent and the temperature around 65 degrees F. Transplant seedlings. Growing: This plant adapts to nearly any soil, including sandy or rocky areas; it is an excellent choice for borders, roadsides, or wildflower plantings. Water the seedlings occasionally until they become established; mature plants prefer well drained soil, but appreciate occasional watering in dry weather. If given too much moisture or rich soil, the plants tend to flop and may need support. If the blooming decreases midseason, cut the plant back by half for new growth and blooms. Regular deadheading also helps prolong the season of blooming. It will self-seed abundantly, though it does not become weedy and will decrease eventually without disturbance of the soil. This plant attracts butterflies and bees as well as resisting rabbits and deer. Harvesting: For long lasting fresh flowers, cut the stems long and place them in water immediately.