Introduction to the culture techniques of potted geraniums. Let's learn it.

Pelargonium, alias hydrangea, origin of South Africa, is perennial herbaceous flowers, flowering from early winter until early summer of the following year, potted plants should be used for indoor and outdoor decoration; can also be used as spring flower beds. Let's take a look at the cultivation techniques of potted geraniums.

How do potted geraniums grow?

1. Soil selection: Pelargonium soil can be selected from humus soil 4 parts, garden soil (or peat soil)3 parts, river sand (or pearlite)2 parts, organic fertilizer 1 part mixed culture soil, or fine sand, humus soil, pearlite plus organic fertilizer mixed preparation. Pelargonium requirements of the soil is relatively loose and breathable, each autumn can be turned pot, or timely loosening.

Cultivation method of potted geranium 2, fertilization method: geranium in the growth period, every 10 to 15 days of liquid fertilizer, and vigorous spring and autumn, every 7 to 10 days of liquid fertilizer; before the bud is dominated by nitrogen, after the bud is dominated by phosphorus and potassium, the concentration of 0.1% to 0.2% is appropriate. Winter indoor maintenance, high temperature, basically will not stop growing, can be appropriate fertilization. Summer high temperature, plants in a semi-dormant state, should stop fertilization. It is best to fertilize in the evening and water the next morning.

Cultivation method of potted geranium 3, watering method: geranium watering should be appropriate, rather dry not wet. Spring and autumn growth season should meet sufficient water, so that the pot soil often keeps wet, but can not accumulate water; cloudy or rainy days, generally do not water, do not fertilize. Allow plants to receive rain properly, but avoid excessive rainfall. Otherwise, it is easy to cause root rot.

Cultivation method of potted geranium 4, temperature requirements: geranium hi warm, avoid high temperature, afraid of cold. Pelargonium suitable growth temperature of 15~25℃, winter indoor temperature should be maintained at 10℃, 3℃ below susceptible to cold damage, but some varieties can withstand 0℃ low temperature. In summer, when the temperature exceeds 35℃, it enters a semi-dormant state. Keep ventilation as far as possible to avoid sultry environment, which is not conducive to dormancy.

Cultivation method of potted geranium 5, lighting requirements: geranium is not afraid of strong light, but summer noon needs shade. Pelargonium grows strongly in the sun, with dark green leaves, short internodes and graceful plant shapes. When family farming, autumn, winter and spring should be placed in a place with direct sunlight. When flowering, you can move indoors to enjoy and maintain, and receive light properly, but avoid direct sunlight to avoid causing petals to scorch.

Cultivation methods of potted geranium 6, pest control: geranium ventilation is poor and too wet, prone to leaf spot disease and flower blight. After discovery, attention should be paid to ventilation, immediately remove sick flowers and leaves to prevent infection, and spray equal amounts of Bordeaux mixture for prevention and control. Pests mainly red spiders and whiteflies damage leaves and flowers, available 40% omethoate emulsion 1000 times spray kill.

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