Ipomoea is a very tender annual climbing plant which needs a sheltered warm spot.
The common name "Morning Glory" refers to 1,000 species of flowering plants in the family Convolvulaceae. The largest group in the family, Convolvulaceae, is Ipomoea and generally, when gardeners refer to morning glory plants, it is to Ipomoea. Those commonly grown are tender annuals with large trumpet shaped showy flowers, velvety in appearance.
Ipomoea hail from warm parts of the world, which in turns means they are very sensitive to the cold, probably more so than any tender annual gardeners commonly encounter. If, after germination, the young plants get so much as a chill breeze, the leaves will wither and the plants suffer. It is true to say during poor summers, or in more exposed gardens, it may be a struggle to establish Ipomoea and to get them to flower well.
Because plants of morning glory are not commonly offered for sale in garden centres , it is usual to raise them from seed. Besides the blue variety of Ipomoea purpurea , seed companies sell a much wider range of colours and also I. lobata also known as the Spanish flag, top right image.
Ipomoea needs to get established to flower well, which means germinating early in the year to give them a longer growing period, but not too early, or the cold will be a problem.
Morning Glory is vigorous and flowers best in warm summers, and in the warmer, more sheltered parts of the UK. In a good year when they flower well, Ipomoea is a captivating climber, which is why I try to grow each year in the hope of a good summer. Impossible to resist. Ipomoea, when grown in UK will not survive a winter and is treated as an annual, which means they grow, flower and finish all in one season.