Garden

Calla


Question: Calla


Hello,
at the end of February I bought a colorful calla lily flower, for about twenty days it has faded.
I have read in your articles that once the plant has faded it should not be watered and the flowers should not be cut, the doubt has assailed me since I seem to see new leaflets appearing and the others seem to me a little weakened, I don't know in this case how to behave, the plant is positioned in a not too sunny place, during the day the plant is often brought to the balcony, please give me some advice.
Thank you in advance for your attention.
Greetings Giovanna

Calla: Answer: Calla


Ms. Maria Giovanna,
Thank you for contacting us about the questions on the street through the "" expert's column.
Calla (Zantedeschia aethiopica) is a herbaceous plant belonging to the Araceae family and is native to southern Africa. Three different species belong to the genus Zantedeschia: the White inflorescence Africana; Rehmanni from the color pink and Eliottiana from the yellow color.
This type of plant is characterized by having a rhizome that allows the formation of the flower only when it has a circumference of 10-12 cm, from which a stem rises, ending with a spadix. The spadix is ​​composed of male flowers in the upper part and feminine in the lower part, wrapped in a bract called spata, with a different color depending on the species. The most widely used cultivar is the "Pearl of Stuttgart" with a pure white color
Its cultivation takes place in mainly humid areas because they are plants that require a lot of water and can occur in soil or in pots with the advantage of being able to repair them from winter colds.
With regards to your question about watering, after flowering it is gradually decreased and only when all the leaves turn yellow does it suspend.
Regarding succulent plants, these plants although belonging to different botanical families have in common the adaptation to arid climatic environments. In order to survive in such adverse places, almost all have undergone particular morphological changes, transforming the leaves into thorns and transferring the chlorophyll function on the stem which in this case is called Cladodo. The size of these plants is generally reduced, and so is the growth which makes it easier to grow them in pots. Their extreme adaptation to the arid environment means that this type of plant is considered robust or tolerant to inattentive watering or exposure to high temperatures.
For opposing considerations, they instead present many difficulties in low light low temperature situations (the minimum vital is generally 5 ° C)
Among the first conditions of success of the cultivation of fat plants in general we will have for an optimal setting:
Light: optimal in all seasons but not excessive, there are only rare exceptions for some that still require light from good to diffused.
Temperature: it must be not too high in the summer months and not too cold in the winter months. It would be erroneous to keep them constantly at medium-high fixed temperatures, precisely because in the winter months there is induction to growth and flowering and the optimal temperature must remain between 5 and 10 degrees.
Always pay attention to frost. Except for very rare exceptions these plants do not tolerate minimum below 0 ° C.
Watering: in the wild they are used to long periods of drought before being flooded with floods. In amateur cultivation, it is always good to moderate the watering by keeping the soil humid in the winter with 1 to 2 baths a month, to then progressively reach the maximum of 4-5 wettings in the hottest months.
Soil: The substrates must be characterized by a permeable and porous structure in order to avoid dangerous water stagnation: almost all succulents prefer acid soil and mixtures with draining material such as sand or lapillus are recommended.
Regarding your question, these are plants that do not require frequent repotting due to their slow growth; however the operation can be carried out every 2 years with certain well-being for the plant due to the elimination of any parasites and the restoration of optimal soil conditions
With best regards