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Jack in the pulpit Arisaema jacquemontii

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Generalities Jack in the pulpit
The Jack in the pulpit is medium in size and 50 cm in height; in the summer it assumes a green colouring. These plants aren't evergreens, which means they lose their leaves some months during the year. These plants give origin to a brush with a rounded form. These plants have trunks or roots which store nourishment, originating bulbs or tubers. Fertilization Jack in the pulpit
Bulbous plants use nutritious substances stored from the previous year for their flowering ; this is why usually the soil should be enriched, during planting, with a slow release or organic fertilizer. Later we must fertilize with a specific fertilizer for bulbous plants, every 15-20 days, starting from the moment in which the first flowers are withering. Exposure Jack in the pulpitPosizione mezza ombra
The Jack in the pulpit can't stand temperatures below zero; they should be grown in cold green houses or at least in a place where they are sheltered by the wind; when every risk of late freezings has gone by we can place them outside or remove the protections. It is advisable to position this plant in a partially shady place, where it is exposed to direct sunlight only during the coolest hours of the day.If necessary we can extract the bulbs from the ground, during the vegetative rest; after letting them dry we should place them in a cool, dry and dark place. During the most indicated season we can plant them again. Watering Jack in the pulpitTenere asciutto
Water rarely, about once every 1-2 weeks with 1-2 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. These plants don't need too much water; staying in a soil which is too damp, can easily cause the development of rotten in the bulbs. Treatments Jack in the pulpit
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 Jack in the pulpit
Locate in a deep and dissolved soil, with an accentuated drainage.
Climate
peat
sand
Soil
Pumice
Bark
S. Organic
alpine
5
0
4
0
0
1
continental
4
0
4
0
0
1
mediterranean
3
0
4
0
0
1
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Notes Jack in the pulpit

When wanted we can grow these plants in a vase. The indications given in this article are related to a medium size plant.
This page concerns the weather continental it is possible to choose another climate area alpine mediterranean write a comment on this plant.