The Linum grandiflorum is an annual herbaceous plant belonging to the same genus of L. usatissimus, used for the production of textile fiber, originating in the Mediterranean area. This genus also includes numerous other species of ornamental herbaceous plants, both perennial and annual, originating in Europe and New Zealand. Linum grandiflorum has an erect habit; it has quite rapid growth, the stems are thin, the leaves are narrow, greyish-green in color; in late spring and in summer it produces numerous little flowers with five petals, red, purple or blue, usually with a contrasting colored center. The individual flowers have a very short duration, but new buds are continually formed. L. alpinum has a prostrate habit and large sky-blue flowers. L. narbonense is an evergreen perennial, with purple flowers.
The Linum grandiflorum, also known as flax or commonly as bells, due to its particular flowering, prefers very sunny locations, although it is advisable to place it in an area sheltered from the winds that can easily bend the stems; it grows without problems even in half-shade positions. These plants should be planted when any risk of frost has passed. During the hottest season it is good that the direct rays of the sun do not hit the bells when the temperatures are high. It can withstand rather low temperatures but by adopting adequate coverings that protect the Linum grandiflorum from the harsh climate.
The bell plants need abundant watering, especially in the hottest periods of the year; then water regularly, adding fertilizer for flowering plants to the watering water every 10-15 days.
It is good that the soil is kept constantly moist between one watering and another, without however that there is an excess of water that could compromise its health. Some particular varieties can endure short dry periods without particular problems or consequences.
the flax develops without problems in any soil, but surely better results will be obtained in well-drained, loose soil rich in organic matter. When new specimens are planted, it is advisable to choose a well-drained substrate mixed with fertilizer to ensure proper nourishment to the new plants.
The multiplication of this variety of plants occurs by seed; in February the linen is sown in seedbeds, placing the seedlings in abode in April-May, usually it tends to sow directly in May, since the delicate roots do not always tolerate transplants. Sowing or transplanting must be carried out when the external temperatures are rather mild and no sudden drop in temperature is expected.
Flax, Campanelle - Linum grandiflorum: Pests and diseases
This kind of plant is easily attacked by aphids that ruin buds and buds. For this reason it is good to intervene with preventive treatments based on special insecticides available on the market, or, when you notice the signs of an attack by these parasites, you can intervene with natural compounds based on nettle or garlic, which go then vaporized on the affected plants.