Rating of the best fertilizers for indoor plants

Complex mineral liquid fertilizer for indoor plants. Designed for flowering and ornamental plants: growth increases, leaf color becomes more saturated, the number of buds increases. Suitable for root (with irrigation water) and foliar (by leaf) top dressing. The composition includes nitrogen, phosphorus and potassium, microelements in an accessible chelated form and energens — humic bioactive substances. Helps plants to endure stressful conditions, compensates for the deficiency of nutrients, supports the activity of physiological processes. From 250 ml of fertilizer, 25 — 50 liters of working solution are obtained. The NPK ratio is 5:3:5. The composition is balanced and versatile, so you should not overdo it with top dressing on fresh nutrient soil. In the «for flowering plants» series, the nitrogen content will be minimal.

A good complex liquid balanced fertilizer for indoor plants during the flowering period. Stimulates bud formation, prolongs flowering and intensifies color. In addition, it maintains a healthy appearance and promotes root growth. The composition includes nitrogen, phosphorus, potassium, copper, zinc, magnesium, manganese, iron and vitamin B1. All elements are in an accessible and easily digestible form. The NPK ratio is 3.8:7.6:7.5. The predominance of phosphorus and potassium confirms the purpose of the fertilizer. To prepare 1.5 liters of working solution, take 10 ml of concentrate. For the care of plants after flowering, a series for decorative leafy plants is recommended, which is aimed at restoring the leaf rosette and strengthening the immune system.

Continuing our ranking of the best indoor plant fertilizers, Pokon for potted plants is an all-purpose liquid fertilizer for active growth and flowering. Suitable for soil and hydroponics. A balanced composition of NPK (7:3:7) with a high nitrogen content is more designed for the growth of a leaf rosette. If the houses are predominantly flowering species, it is better to choose the line “for flowering plants”. It also contains trace elements and humic compounds. From 250 ml, 25 liters of irrigation solution are obtained.

Next in our ranking is a concentrated liquid mineral fertilizer for decorative leafy and flowering plants from Bona Forte. Increases decorativeness, enhances growth, stimulates the laying of buds and lengthens the flowering period. The composition includes nitrogen, phosphorus, potassium, magnesium, trace elements in chelate form (iron, manganese, zinc, copper, molybdenum, cobalt) + boron and calcium, vitamins (C, B1, PP) and succinic acid (growth stimulant). The ratio of NPK + Mg is 6:3:7 + 1.5. One bottle of fertilizer is enough to prepare 43 liters of irrigation solution. For foliar dressings, the consumption of the drug is halved. Ready working solution should be used within two weeks. Manufacturers recommend alternating fertilizers from the «Beauty» series with similar fertilizers from the «Health» series. So the plants will develop harmoniously and maintain good immunity. The effect of the use of fertilizer is noticeable after 2 — 3 top dressing.

Liquid mineral complex fertilizer adapted to the needs of plants in different seasons. The NPK ratio is 5:6:7. Contains a standard set of 6 trace elements. The increased content of potassium helps to increase the stress resistance of plants. The dose of nitrogen is reduced, as growth slows down in winter and the need for this element decreases. In the universal series (for all seasons), nitrogen, phosphorus and potassium are present in the same amount. Decorative leafy plants are fed once a month, flowering plants — every 3 weeks. For irrigation, a 0.75% solution is prepared: 7.5 ml of fertilizer is diluted in 1 liter of warm water.

Universal fertilizer — spray, ready to use. Designed for effective foliar top dressing in order to stimulate the development of leaves, activate bud formation, increase resistance to diseases and adverse conditions of temperature and lighting. The NPK ratio is 0.03:0.03:0.03. There is a series of «Antistress», which is suitable for emergency recovery after division, transplantation, change of daylight hours, past diseases or pest attacks. In a stressful period, spraying is carried out weekly, in a normal one — once a month. The fertilizer is completely ready for use. Shake well and mix well before spraying.

Further in our ranking of the best fertilizers for indoor plants — organo-mineral fertilizer in liquid form based on sapropel humic extract. In addition to abundant flowering and active formation of bright greenery, it promotes the development of the root system and increases resistance to adverse factors. The composition includes humic and fulvic acids, calcium, magnesium, sulfur, boron, iron, manganese, zinc, copper, molybdenum, cobalt. The NPK ratio is 13:1.5:4. If the soil rarely changes, FlorHumate can maintain soil fertility. Well restores plants after stress.

Good complex organic fertilizer in granules, enriched with macro- and microelements. It is aimed at increasing growth rates, improving survival, maintaining immunity. The NPK ratio is 2.6:3.2:2.5. Contains zinc, copper, manganese, molybdenum, boron and iron. It is used in the form of a suspension for root dressings and in dry form in the preparation of soil mixtures. To prepare a suspension, 10 g of granules are dissolved in 1 liter of warm water and infused for 4 hours. The soil is fertilized at the rate of 10 g of granules per 2.5 — 3 liters of soil. There are large packages of 600 g and 2 kg, which are more intended for greenhouses and vegetable beds, or for preparing soil mixtures. For a suspension, it will be difficult to dose them.