These plants don't fear the cold weather and therefore can be grown in the garden during any time of year. Perennial plants mainly have a spring and summer development. During the coldest months of the year the aerial part can completely dry out, to come up the year after.Plant which need at least a few hours a day of solar light.
These plants are perennial herbs. This plant in the summer assumes a purple colouring; it is medium in size and can reach 1,2 m high. It doesn't keep its leaves in the winter. The development is erect, they tend to grow both in height and in width, giving origin to a rounded shrub.
In the spring letís fertilize perennials periodically, using a specific fertilizer for flowering plants, to add to the irrigating water, every 20-25 days; or we can spread a slow release fertilizer near the plants every 3-4 months.
Water regularly, every The , wetting the ground deeply with 2-3 glasses of water , always waiting for the soil to be dry before watering; avoid leaving stagnant water. These plants display a pretty long period of vegetational rest. During this time it isn't necessary to water the plants.
As the day-time temperatures rise at the beginning of the spring, it is agreeable to practice a preventive treatment, with a wide-range insecticide, which should be applied when there arenít flowerings in the garden. Before the buds become too large, it is advisable to also treat them with a wide-range fungicide, to prevent the development of fungal diseases which spread easily when there is an elevated environmental moisture.
We suggest growing these plants in a slightly damp substratum, which isnít too drained.
There aren't any notes. The indications given in this article are related to a medium size plant.