Arisaema griffithii - Jack in the pulpit

Fertilization Arisaema griffithii : We should enrich the soil of newly planted bulbous plants with organic fertilizer; it’s not necessary to fertilize summer flowering bulbous plants during this period of the year.

continental : We can grow the the Arisaema griffithii in a place where it can receive a few hours a day of direct sunlight, but where it is protected from the sun during most of the day.
During the autumn these plants can be left outdoors, but we suggest moving them to a place where they are sheltered from the frost as soon as the minimum temperatures go below zero.

alpine : Locate this plant in a partially shaded place, where it can receive a few hous of direct solar light.
In this period of the year we suggest paying attention to sudden freezing, since the the Arisaema griffithii can’t stand temperatures below zero; if the autumn climate is particularly harsh we suggest locating the plants in a sheltered place or in a cold greenhouse.

mediterranean : We suggest a pretty sheltered location, so that the plant can receive direct solar rays only during the coolest hours of the day.
In this period of the year the Arisaema griffithii can be cultivated outdoors; it can’t always stand quick dropping temperatures, therefore we suggest locating it in a sheltered spot. They can’t stand frost.

continental : Let’s water every 0-1 weeks with 225-226 glasses of water, or even more often if the weather is hot and dry; we should always try to keep the ground slightly damp.

alpine : Water regularly, every 1-2 weeks, wetting the soil thoroughly by using 224-225 glasses of water and keeping it always a bit moist, although avoiding to soak it too much.

mediterranean : For a balanced development these plants need constant and abundant dampness; during this time of year it is good to water frequently, about 226-227 glasses of water at least every 0-0 weeks.

Treatments Arisaema griffithii : During the cold months many pathogens spend the winter in the ground, at the feet of our plants; let’s treat the plants struck by black spot disease or by leaf curl disease with particular attention by applying a wide-range anticryptogamic treatment, to vaporize even on the ground. Let’s gather and destroy the leaves of the sick plants.