Vining Flower
Crimson Rambler Morning Glory is a vibrant heirloom vine that climbs 6 to 10 feet tall, producing deep crimson flowers from early summer through November across zones 2 to 11. This frost-tender annual reaches bloom in 84 to 98 days from seed, rewarding patient gardeners with continuous color from June through the first hard frost. The flowers attract pollinators throughout the growing season, transforming trellises and garden structures into living tapestries of crimson blooms.
12-18 inches apart
Full Sun
Moderate
2-11
120in H x 12in W
Annual
High
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Deep crimson flowers open reliably on this vigorous climbing vine, blooming continuously from midsummer straight through fall in most regions. The flowers open fresh each morning and close by afternoon, a characteristic charm of morning glories that makes them feel dynamic and alive in the garden. Germinating in just 5 to 14 days when seeds are properly scarified and pre-soaked, this variety rewards early planning with weeks of extended bloom time.
Crimson Rambler Morning Glory excels as a vertical accent plant, ideal for adorning trellises, arbors, fences, and garden structures with reliable color throughout the growing season. Its climbing habit and prolific blooming make it equally suited to container growing on stakes or small structures, bringing pollinator activity and visual interest to patios and garden beds.
Sow seeds indoors in pots about 4 weeks before your last frost date. Before sowing, nick or file the seed coat and soak seeds in warm water for 24 hours to break dormancy. Keep soil at 65 to 80°F and cover with a humidity dome to retain moisture until germination occurs, which typically takes 5 to 14 days.
Transplant seedlings outdoors about 2 weeks after your last frost date, once soil has warmed and frost danger has passed. Space plants 1 inch apart.
Direct sow seeds outdoors about 2 weeks after your last frost date, when soil temperature reaches the optimal 65 to 80°F range. Nick or file the seed coat and soak seeds in warm water for 24 hours before sowing at a depth of 1/4 to 1/2 inch.
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