A Guide to Growing Potted Geraniums: Come and Learn

Geranium, also known as zonal pelargonium, is native to South Africa and is a perennial herbaceous flowering plant. Its flowering period begins in early winter and lasts until early summer of the following year. Potted plants are suitable for indoor and outdoor decoration; they can also be used as spring flowerbed flowers. Below, let's take a look at the guide to growing potted geraniums.

How do you grow potted geraniums?

Growing method for potted geraniums 1. Soil selection: For geranium soil, you can choose a mixed growing medium of 4 parts humus soil, 3 parts garden soil (or peat soil), 2 parts river sand (or perlite), and l part organic fertilizer. You can also use a mixture of fine sandy soil, humus soil, perlite, and organic fertilizer. Geraniums require relatively loose and breathable soil. You can repot in autumn each year, or loosen the soil in time.

Growing method for potted geraniums 2. Fertilization method: During the growing period, apply liquid fertilizer once every 10-15 days. In the vigorous spring and autumn seasons, apply liquid fertilizer once every 7-10 days. Before bud formation, mainly use nitrogen fertilizer; after bud formation, mainly use phosphorus and potassium fertilizer, with a concentration of 0.1%-0.2%. In winter, keep it indoors for care. As the temperature is relatively high, growth will basically not stop, so appropriate fertilization can be applied. In summer, when temperatures are high, the plant is in a semi-dormant state, so fertilization should be stopped. It is best to fertilize in the evening and water the next morning.

Growing method for potted geraniums 3. Watering method: Geraniums should be watered appropriately, preferring dry over wet. During the peak growing seasons of spring and autumn, sufficient water should be provided to keep the potting soil consistently moist, but not waterlogged. On cloudy or rainy days, generally do not water or fertilize. The plant can be allowed to receive some rainwater appropriately, but avoid excessive rain irrigation. Otherwise, it can easily cause root rot.

Growing method for potted geraniums 4. Temperature requirements: Geraniums like warmth, dislike high temperatures, and fear cold. The suitable growing temperature for geraniums is 15-25°C. In winter, indoor temperatures should be maintained at 10°C. Below 3°C, they are prone to cold damage, but some varieties can tolerate low temperatures of 0°C. In summer, when the temperature exceeds 35°C, they enter a semi-dormant state. Keep ventilation as much as possible and avoid a stuffy environment, which is not conducive to dormancy.

Growing method for potted geraniums 5. Light requirements: Geraniums are not afraid of strong light, but they need shading at noon in summer. Under sunlight, geraniums grow robustly, with dark green leaves, short internodes, and a beautiful plant shape. When grown at home, they should be placed in a spot with direct sunlight in autumn, winter, and spring. When flowering, they can be moved indoors for appreciation and care, receiving appropriate light, but avoid direct strong light to prevent the petals from scorching.

Growing method for potted geraniums 6. Pest and disease control: When geraniums are poorly ventilated and too humid, they are prone to leaf spot disease and flower blight. After discovery, attention should be paid to ventilation, and diseased flowers and leaves should be removed immediately to prevent infection, and an equal-part Bordeaux mixture should be sprayed for control. The main pests are red spiders and whiteflies, which harm leaves and flowering branches. They can be killed by spraying with 40% omethoate emulsifiable concentrate at 1000 times dilution.

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