![]() Fertilize Pinus nigra : As the autumnal months arrive, we can mix some organic fertilizer to the soil at the base of the trees; typically fertilization takes place every 2-3 years. Light Pinus nigracontinental : The Pinus nigra needs direct sunlight, even for many hours a day. alpine : These plants prefer very sunny locations, where they are exposed to sunrays for most of the day. mediterranean : This plant needs to be exposed to direct solar rays. continental : The Pinus nigra doesn’t need too much watering; we advise a weekly action, always keeping in mind to wait for the ground to dry between a watering and another. The regularity of the irrigations should be every 2-3 weeks with 2-3 buckets of water. alpine : We suggest watering the The Pinus nigra only if the soil is completely dry, avoiding surpluses. If the weather is particularly arid, we should water every 3-4 weeks using 1-2 buckets of water. mediterranean : Water regularly using about 3-4 buckets of water , every time the soil seems dry; during this time of year every 1-2 weeks might be enough, avoiding excesses. |