Heirloom Variety
Grandpa Ott's Morning Glory is a treasured heirloom cultivar of Ipomoea purpurea, beloved for its rich purple blooms that unfurl each morning throughout the summer and fall. This vigorous climbing vine grows 6 to 10 feet tall, making it perfect for trellises, arbors, and garden structures where it can be admired at eye level. From seed to first flower takes 84 to 98 days, and once blooming begins in June, the flowers continue reliably through November in most climates. The variety thrives in full sun with moderate water, attracting pollinators all season long and rewarding gardeners with the magic of watching fresh blossoms open with the dawn.
6-12 inches apart
Full Sun
Moderate
2-11
120in H x 12in W
Annual
High
Hover over chart points for details
What sets Grandpa Ott's apart is its incredible reliability and the vivid deep purple flowers that seem to glow in morning light. This heirloom has been passed down through generations of gardeners, each family preserving seeds and planting them anew, a living connection to horticultural history. The vine grows robustly in full sun, blooms prolifically from early summer through late fall, and asks for nothing more than moderate water and something to climb. Its appeal lies not in complexity but in its straightforward beauty and the joy of watching it perform year after year.
Morning glories are grown as ornamental climbing vines, valued for their ephemeral flowers that open fresh each dawn and close by afternoon. Grandpa Ott's is a favorite for training along trellises, fences, pergolas, and arbor structures where its deep purple blooms can be displayed prominently. Gardeners often plant them where they can be seen from windows or pathways, timing their morning routine to catch the flowers at peak beauty. The vines also serve as living screens and wildlife corridors, attracting pollinators throughout the blooming season.
Sow seeds indoors 4 to 6 weeks before your last frost date in biodegradable pots, which can be planted directly into the ground to avoid root disturbance. Keep seedlings at 65 to 80 degrees Fahrenheit and cover with a humidity dome to retain moisture until germination occurs, which typically takes 5 to 14 days. Prior to sowing, nick or file the seed coat and soak seeds in warm water for 24 hours to improve germination.
Transplant seedlings outdoors 4 to 6 weeks after starting them indoors, timing this to occur 1 to 2 weeks after your average last frost date when soil has warmed. Harden off seedlings by gradually acclimating them to outdoor conditions before final planting.
Direct sow seeds outdoors about 2 weeks after your last frost date, when soil temperatures have warmed sufficiently for reliable germination.
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“Grandpa Ott's Morning Glory carries the warmth of its name in every seed. Like many beloved heirloom flowers, this variety was preserved by gardeners who saved seeds from the most beautiful plants, passing them to children and neighbors. The cultivar's journey through American gardens speaks to a tradition of selection and care, families choosing the deepest purples, the strongest vines, the most reliable bloomers, and stewarding those lines forward. The name itself suggests a legacy: someone's grandfather grew this, loved it enough to save seed, and that act of preservation has allowed it to reach gardeners today. Heirlooms like Grandpa Ott's represent more than plants; they're records of taste, place, and the human impulse to share beauty.”