Question: why do my philodendrons suffer?
Good day My name is VIVIANA, I have some plants of FILODENDRO, which during the winter I keep at home, in a well-lit room, from the end of May until the beginning of October I take them outside under a pergola. The plants developed well with the emission of new leaves. This autumn when I brought them back home I realized that all the edges of the leaves had become dry. Please could you tell me what the cause is and how can I fix it? Thanking you in advance, I send you my best regards
Philodendron: Answer: the cultivation of the Philodendron
the plants of the Philodendron genus originate from tropical areas of the globe, and therefore they love warm environments and good environmental humidity; when the plants are free from insects (which you would surely have noticed if this were your case) the reasons for suffering and browning of the foliage may be due to fungal parasites, water problems or light problems.
Therefore, if in addition to having leaves with a dry margin, your philodendrons had the rest of the flaccid leaf page, it may be that the plants have received excesses of watering, or have been grown in a soil constantly soaked with water; this causes the rapid spread of root or collar rot, which can lead plants to death.
We always recommend watering these plants regularly, but waiting for the soil to dry between two waterings.
If the edge of the dried leaves was associated instead with turgid leaves and with the leaf page intact, perhaps your plants have undergone a period of water stress, due to lack of watering: it often happens that at the beginning of autumn, despite night temperatures already fresh, daytime temperatures are very high, with a very dry climate.
The dry leaves can also be a symptom of an excess or a lack of fertilization; so if you fertilize your philodendrons very often, perhaps they suffer from an excess of salts in the soil; if, on the other hand, you rarely fertilize them or have been in the same soil for a long time, it is perhaps appropriate to repot and / or fertilize them, from March to September, every 15 days.
Your philodendrons may also have suffered from a lack of environmental humidity, or from an excess of sunlight, but only you can know the precise conditions of cultivation of your plants; so remember that at home and outdoors in dry periods, philodendrons love to be vaporized; instead they fear direct sunlight, especially during the hottest hours of the day.
In summary: if your philodendrons are grown under optimal conditions, they should not have foliage with a dry and brown margin; then look for as much as you can to simulate a tropical environment, with a good brightness, a rich and fresh soil, high air humidity, regular watering, but to be provided only when the soil dries. Only you can know if one of the above conditions were not present in the place where your plants were stored.