Ipomoea purpurea 'Grandpa Otts' or Grandpa Otts Morning Glory is a beautiful cultivar of the purple, tall or common morning glory plant species. The heart-shaped leaves and trumpet-shaped flowers in shades of blue, purple and white make it an ornamental addition to gardens. It is a fast-growing, annual climber that entwines itself around structures, reaching a height of 2-3m. It prefers moist and rich soil but can grow in various soil types. It is naturalized in warm temperate and subtropical regions of the world. The plant is not frost hardy, but it can be grown outdoors as a tender annual in temperate zones. The seed, known for its psychedelic properties, contains LSA. The plant also has medicinal uses - the seed is anthelmintic, diuretic and laxative and used in the treatment of oedema, oliguria, ascariasis and constipation. Pre-soaking the seed for 12 hours in warm water or scarifying the seed before sowing in individual pots in a greenhouse in early spring helps with germination. Ipomoea purpurea 'Grandpa Otts' can be grown in arbor, container or as a specimen plant in a sunny position with well-drained loamy soil. It is a very ornamental plant with attractive blooms and is suitable for gardens and landscapes.