Although Heliotropium are half hardy perennials they are usually grown as half hardy annuals in the garden.
The flowering time of the Heliotropium genus depends on the species and can be from the latter part of spring until the end of autumn.
They carry trumpet shaped flowers of blue, white or purple that are cherished in the garden for their aroma.
Some common names for Heliotropium include heliotrope and Cherry Pie.
Common Names: Heliotrope, Turnsole, Cherry Pie Flower, Cotorrilla, Garden Heliotrope, Monkey Tail.
Life Cycle: Half hardy perennial commonly grown as a half hardy annual by gardeners.
Height: 10 to 48 inches (25 to 120 cm).
Native: Europe, Americas, Asia, North America.
Growing Region: Zones 3 to 10. As a perennial in zones 9 and 10.
It is best to grow Heliotrope indoors first and then transplant later. They should be started about three months before they are due to be transplanted. Transplant outdoors a few weeks after the last frost of spring.
They take from a couple of days to six weeks to germinate at a temperature, of 21 to 24 degrees Centigrade (70 to 75°F).
Once Heliotropium plants are established, they can either be kept indoors in an area that receives plenty of sunlight, or transplanted outdoors into containers or the border. Use a spacing of about 40 to 50 cm (16 to 20 inches.
They prefer to grow in a sunny area of the garden with good drainage. Preferably locate in an east facing part of the garden, so that it gets shade in the afternoon. The soil should be rich.
Once growing it is important to keep the soil that Heliotropium is growing in moist. Also provide a regular monthly feed.
Additionally, young Heliotropium plants should have their tips nipped to encourage bushy growth.
Once the flowering has finished, deadhead the flower to encourage further blooming.
If you require further heliotropes plant, then cuttings from either the root or stem can be taken in the autumn.