Outsidepride Cardinal Climber Vine Plant Seed - 500 Seeds Cardinal Climber (Ipomoea Quamoclit Cardinalis) grows as an annual in USDA Zones: 6 - 11 and thrives in full sun. Cardinal Climber vine reaches 180 - 240 (vining) in height and has bright red flowers from summer through fall. This vining plant is easy to grow from seed and perfect for arbors, a trellis, fences, and posts. It is also very attractive to hummingbirds! Soak Cardinal Climber flower seeds overnight before planting. Sow these heirloom seeds at 2 - 3 seeds per plant in well-drained soil and keep moist until germination occurs in 7 - 21 days. Our seeds are always Non-GMO and packaged for the current year.