The seeds are extremely fine and require unusual care when started. It is wise to sow them indoors in March, although seed sown in the open soil will bloom nicely. When the warm days of Spring arrive and the soil is warm, the indoor-grown seedlings may be set out six inches apart. Little difficulty is experienced in getting the plants to grow after the seed has once germinated. Pinching out the centers of the young plants will cause them to branch.
Sandy soils are best suited to Salpiglossis.
It grows nicely in partial shade. It is wise to give a stake to each plant to keep them standing erect. The growing of Salpiglossis in the greenhouse is discussed on.