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These plants lose the aerial part during the coldest months of the year. As spring begins, stems and leaves quickly start to reproduce. The St. Johnswort should be grown outdoors; it can bear very harsh temperatures without any problems, even many degrees below zero.The St. Johnswort should be grown in a bright place, with direct sunlight.
Watering St. Johnswort
Perennial plants are subject to some months of vegetational rest. During these months it isn't necessary to water them. Water rarely, about once every 1-2 weeks with 2-3 glasses of water , keeping the soil dry for a few days before watering again; when wetting we suggest avoiding surpluses, however to wet the soil deep down.
Fertilization St. Johnswort
We suggest adding to the irrigation water, in the spring, every 20-25 days, a specific fertilizer for flowering plants. We can also mix to the soil near the plants a granular slow release fertilizer, which has a 3-4 month action.
Watering St. Johnswort
Water rarely, about once every 1-2 weeks with 2-3 glasses of water , keeping the soil dry for a few days before watering again; when wetting we suggest avoiding surpluses, however to wet the soil deep down. Perennial plants are subject to some months of vegetational rest. During these months it isn't necessary to water them.
Treatments St. Johnswort
Generally during this time of year we suggest a pre-emptive treatment with wide range insecticide and with a systemic fungicide, to prevent the attack from part of the aphids and the development of fungus diseases, often favoured by a mild and damp climate.
Soil St. Johnswort
We suggest a substratum characterized by an excellent drainage.
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Notes - St. Johnswort
There aren't any notes. 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 alpine mediterranean