Summer is one of the most demanding times of the year for bonsai trees. High temperatures, rapid water evaporation and heat-related stress require us to adapt our care routine in order to keep bonsai healthy, vigorous and well balanced. During June, the main objective is to maintain the tree’s vitality, control growth and protect it against fungal diseases, pests and nutritional deficiencies.
At this time of year, many species remain actively growing and require a balanced nutritional supply to help them withstand the heat without losing strength or foliage quality. Maintaining healthy root activity and encouraging controlled growth will be essential for coping with the hottest weeks of summer.
This is how you should care for your bonsai during the month of June!
During periods of high temperatures, bonsai trees may show signs of reduced vegetative growth due to thermal stress. For this reason, it is important to reinforce fertilisation and provide micronutrients that help maintain the tree’s metabolic activity. For this period, we recommend using Zokamin Segunda Brotación, a liquid fertiliser specifically formulated to encourage balanced growth and stimulate the production of new shoots throughout the summer.
In addition, the application of Zoka Microsintol helps to reduce plant stress and supports bonsai recovery after the routine maintenance work typically carried out at this time of year. Zokamin MicroFe+ is also ideal for preventing and correcting iron deficiencies, helping to maintain rich, healthy green foliage even during periods of intense heat.
Summer also brings an increased risk of fungal problems resulting from the combination of high temperatures and atmospheric humidity. To strengthen the tree’s protection during this month, we recommend applying Zoka Tricofung together with Zokamin Policarbol. These products work hand in hand, with Zokamin Policarbol providing the nutritional support required for the action of Zoka Tricofung, while the latter acts as a preventive aid against the fungal diseases commonly encountered during the summer months. Likewise, Zokamin Kitosan X3 is an excellent ally for stimulating the bonsai’s natural defences and improving its resistance to environmental stress.
In addition to these treatments, it is advisable to avoid repotting and severe pruning, protect bonsai from intense sunlight, monitor watering on a daily basis and regularly check wiring to prevent marks on fast-growing branches. With the right care, together with a well-planned nutrition and protection programme, summer can become a key period for preserving the health, balance and vitality of our bonsai trees.
At Zoka you’ll find the best nutrients for bonsai.