Ficus bonsai with brown leaves

Ficus bonsai with brown leaves

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Hi everyone, I have a ficus bonsai, for some days m sn wary that started to have brown leaves. The plant is placed on a small table for the stairs, lit but not in direct contact with the light, and nn c sn radiators .The watering every 2-3 days with the appropriate fertilizer diluted in water. I would like to know if the cause can be cold? And possibly what can I do?

Ficus bonsai with brown leaves: Answer: BONSAI FICUS BROWN LEAVES

Dear Salvo,
the yellowing of the foliage can be attributable to the cold, although in general the ficus survive without problems with minimum temperatures above 10-12 ° C, and with a minimum temperature of 15 ° they live very well.
If it had caught cold, with strong changes in temperature, it is probable that it would have lost many leaves, as is the case for the ficus benjamin in the apartment, which lose leaves without these manifesting any other particular symptom.
So I think the placement you chose is perfectly suited to your plant; also because if he were in an excessively cold place, he would have manifested symptoms already in December or January.
Perhaps it is an excess of water or fertilizer in the soil: the ficus bonsai love a slightly moist soil, but they fear water stagnation, so they are watered when the substratum begins to dry; in summer also every day, in winter much more rarely, especially if the plant is in an area of ​​the house not very heated. Usually deciding on a strict rule that water is watered every few days throughout the year, with a lot of water, it is quite dangerous: plants are living beings, and their needs vary with the seasons.
Bonsai love to be constantly fertilized, but during the winter period, although they are evergreen plants, they are generally in a phase of semi-vegetative rest, so from September until March the administration of fertilizer is suspended and will be resumed when spring arrives, in April.
I believe that by suspending the administration of fertilizer for a few weeks, and watering the plant only when the soil tends to dry, the plant will return to full health. If you suffer from an excess of salts in the soil, it is necessary not to fertilize it for a few weeks, even if spring is coming; about 4-5 weeks may be enough.