Stokesia laevis


Only one species belongs to the genus stokesia, native to North America; it is a perennial herbaceous plant, evergreen; produces small bushes, 20-30 cm high, made up of thin, almost ribbon-like, pointed, dark green leaves. Among the leaves, in late spring, some erect stems develop, 40-60 cm high, which bear some large flowers with fringed petals, of lilac, pink, white or purple color; the stokesia flowers have particular frayed petals, and are delicately scented. Flowering continues for a few weeks; to obtain a greater number of flowers it is advisable to remove the withered flowers, to prevent the plant from going to seed, interrupting flowering. These perennials are suitable in the borders, but also and above all to create a spot; after flowering the foliage remains dense and thick, creating small persistent tufts even during the winter.


The stokesie laevis are plants that love very sunny positions, which also promote a greater development of flowers; in any case, even a place with partial or partial shade may be suitable for the cultivation of these perennials. They do not fear the cold and can easily withstand temperatures of many degrees below zero.


Regarding watering, from May to September it will be necessary to water the stokesia laevis regularly, always waiting for the soil to be dry before watering again; stokes do not like excessive winter humidity, which can favor the development of radical rot. During the vegetative period, provide fertilizer for flowering plants, dissolved in the water of the watering every 10-12 days.
The transpiration of the soil is a fundamental aspect to guarantee good health to the roots of the plant. In this respect they can help soils with a good content of pumice stone or medioperlite and in general of draining material that can favor the percolation of water and reduce water stagnation.


The stokesie laevis fear excessively calcareous or alkaline soils, it is therefore advisable to prepare an ideal substrate by mixing soil for acidophilic plants with little sand and lapillus, in order to obtain a soft, slightly acidic and very well drained compound.
As already anticipated, avoid soils with stagnant water or too heavy soils that could ruin the plant.


The multiplication of the stokesia laevis occurs by seed in spring. Alternatively, in late winter you can divide the clumps, remembering to keep some well-developed roots for each portion practiced. The portions obtained in this way must be immediately placed at home to prevent the soil from drying out. In the case of multiplication by division of tufts, one must avoid ruining the smaller roots, the so-called radicles, which are essential for the absorption of nutrients. The roots must therefore be handled carefully without breaking, breaking or ruining them.

Stokesia laevis: Pests and diseases

if grown in place with excessive water stagnation they are often hit by root rot and mold. Aphids sometimes attack flower buds.