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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. Let's grow the the Physostegia virginiana outdoors; they can bear very harsh minimum temperatures, even when many degrees below zero.Let's grow the the Physostegia virginiana in a luminous place, with direct sunlight.
Irrigation Physostegia virginiana
These plants display a pretty long period of vegetational rest. During this time it isn't necessary to water the plants. Water when the ground is dry; in case of prolonged droughts water very often, otherwise every 1-2 weeks can be enough using 2-3 glasses of water ; avoid water stagnations and excessive watering.
Feed Physostegia virginiana
In the spring let’s 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.
Irrigation Physostegia virginiana
Water when the ground is dry; in case of prolonged droughts water very often, otherwise every 1-2 weeks can be enough using 2-3 glasses of water ; avoid water stagnations and excessive watering. These plants display a pretty long period of vegetational rest. During this time it isn't necessary to water the plants.
Adversity Physostegia virginiana
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 Physostegia virginiana
We suggest growing these plants in a slightly damp substratum, which isn’t too drained.
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Cultivate Physostegia virginiana
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 continental mediterranean