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  • Eventual height: 2m
  • Eventual spread: 0.5m

Ipomoea lobata

Spanish flag

RHS award of garden merit
9cm pot £6.99
  • Position: full sun
  • Soil: moderately fertile, well-drained soil
  • Rate of growth: average
  • Flowering period: June to September
  • Hardiness: tender perennial (will need winter protection)

    This fast-growing climber quickly forms an attractive screen of relatively large, distinctly lobed foliage, but it's for the abundance of tubular summer flowers that this plant is most highly prized. Initially these are red, but as they age they turn orange, then yellow, and then finally creamy white. Forming in one-sided sprays that can grow to 30cm in length, there are usually red, orange and yellow blooms at the same time, so they really put on a good display, which lasts for several months throughout summer. It's most often grown as an annual, however it is possible to keep it in a pot and overwinter it where temperatures do not dip below 10C.

  • Garden care: Make sure there is adequate support for it to climb up, but do not plant it outside until all risk of frost has passed. Water freely when in growth and apply a liquid fertiliser at monthly intervals. If it is not going to be overwintered in a warm place, cut it back to ground level after it is hit by a frost and start again with a new plant the following spring.
  • Harmful if eaten