Ipomoea is a tender, annual climbing plant with lovely, velverty saucer like blooms. The fact that it is annual means or will grow to maturity, flower and die in one year. Being tender means it needs to be protected from cold and grown in a warm sunny 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.
Ipomoea hail from warm parts of the world, which in turns means they are very sensitive to the cold, probably more so than most tender plants 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.
Morning glory are easy to germinate and grow on provided they are kept warm. In addition to 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. Morning Glory is vigorous and flowers best in warm summers, and in the warmer, more sheltered parts of the UK. Ipomoea is a captivating climber, which is why I try to grow each year in the hope of a good summer. Impossible to resist.