The Asarina is a herbaceous climbing plant native to Central America; produces long thin stems, twining, fairly branched, which bear small trefoil or heart-shaped, pointed, light green leaves; from late spring to the first cold they produce numerous trumpet flowers, pink or purple, with a clear throat;
These plants have a hanging or climbing development, therefore they are used in hanging baskets, or they are grown near a trellis or a grid; they can reach 2-3 meters of stems in a season. They are cultivated as perennials or as annuals depending on the climate and of course the variety chosen. One of the most appreciated aspects of this species is flowers. In bloom, the asarina is filled with beautiful flowers, very colorful and light. The shades vary from species to species but can always give a great sense of beauty. Thanks to their wide growth and ability to climb, Asarina plants can cover trellises and form excellent decorations around doors and pergolas.
However, as this plant in winter, if the temperatures drop too low, it tends to dry out and lose the aerial part, in the North and in areas where the winter climate becomes harsh, the cultivation of these plants is not recommended.
Asarina plants prefer sunny locations; they bear short frosts of slight entity without problems, also because with the arrival of cold they lose the aerial part; in areas with very cold winters it is preferred to cultivate them as annuals, although they often tend to be self-seeded.
Let us remember in the months from March to April until the first cold to water regularly, always waiting for the soil to dry perfectly between one watering and another. During the winter months it is not necessary to water. In the vegetative period enrich the water of the waterings with fertilizer for flowering plants, every 10-15 days.
This fertilizer, to be made with fertilizers with a high content of nitrogen and potassium, will help the plant to grow during the period of maximum development and will ensure an excellent recovery of our Asarina.
Asarina plants prefer soft, rich and very well drained soils it is possible to prepare a suitable substrate by mixing two parts of universal soil with a part of garden soil and a part of sand.
For this plant and for your gardening in general, always try to choose a top quality soil. From the good quality of the earth can in fact depend a large part of your successes in cultivation.
Of course the multiplication of Asarina plants takes place by seed; It is possible to sow directly in March-April, or you can prepare young plants by sowing them in pots already in January-February, and then plant them in spring.
In areas unfavorable to the winter cultivation of this plant, it is advisable to start from the seedlings in pots to accelerate the growth and to skip the part of the germination that can be complicated without the right precautions.
Asarina scandens: Pests and diseases
Speaking of diseases and parasites that can attack this species, it must be said that the plant is often affected by aphids. However, these annoying pests can be effectively fought using special products that can be found in any nursery.