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These plants shouldn't be grown in the garden during the cold period; in autumn the plants usually perish, and should be eradicated from the ground. Let's grow the The Vervain in a luminous place, with direct sunlight.These plants can be put outdoors only if any danger of freezings has gone by.
Feed Vervain
Before placing the annuals, let’s enrich the soil with a small dose of organic fertilizer or slow release granular chemical fertilizer; during the spring we should use a specific fertilizer for flowering plants to be mixed with the irrigating water, to be used every 20-30 days.
Care Vervain
The Vervain has a panel-like development, therefore it tends to widen very much. These plants have a one or two year development. This plant in the spring, summer, autumn, winter assumes a red colouring; it is medium in size and can reach 20 cm high. It doesn't keep its leaves in the winter.
Irrigation Vervain
We suggest watering the The Vervain every 1-2 weeks with 2-3 glasses of water , which means when the soil has been dry for days; if the season should be very hot and arid we can intensify the quantity of irrigations, although we must avoid leaving the substratum soaked with water. As the cold weather arrives, in autumn, we can interrupt watering, and let the plants perish.
Adversity Vervain
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 aren’t 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.
Substrate Vervain
They prefer dissolved soils, with an optimal drainage.
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Cultivate Vervain
The Vervain is scented; It can be grown in a vase when desired. The indications given in this article are related to a medium size plant.
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This page concerns the weather continental it is possible to choose another climate area continental mediterranean