How to grow globe amaranth? A detailed guide to its cultivation methods

Light:

The seedbed for globe amaranth should be set up in a shaded place. In summer, the shading rate should reach 80% to 90%; in spring and autumn, a shading rate of about 70% to 80% is sufficient.

Temperature:

The optimum growth temperature is 20°C-25°C, and it also grows well within the range of 35°C-40°C. When the winter temperature drops below 10°C, the plant grows poorly or suffers cold damage.

Watering:

When growing globe amaranth, water it at the right time, in the right amount, and reasonably, according to changes in the weather. Generally, water less or not at all on cloudy and rainy days; when the temperature is high and evaporation is great, water more; otherwise, water less. When you water, water thoroughly. Usually, pay attention to whether there is standing water in the pot. If standing water is found in the pot, deal with it promptly; otherwise, it will cause root rot and yellow, withered leaves, leading to the death of the plant.

Fertilizing:

About 7 to 10 days after globe amaranth is planted out, apply the first fertilizer with a 0.5% concentration urea solution. After that, apply fertilizer once a week, and the concentration can be gradually increased or 0.6% to 1.0% compound fertilizer can be added. After fertilizing, immediately sprinkle a thin layer of water on the leaves to prevent the fertilizer from damaging the leaves. During the growing period, apply less nitrogen fertilizer and more fertilizer based mainly on phosphorus and potassium, such as chicken manure, peanut meal, and similar fertilizers.

How to grow globe amaranth

Globe amaranth is not strict about environmental requirements, but it likes sunlight and a hot, dry climate, and it thrives in loose, fertile, well-drained soil. The seedlings are fairly robust. When sowing, a relatively densely sown seedling tray can be transplanted once before being potted up, or it can be sown directly in plug trays and potted up 4-6 weeks after emergence. Use pots with a diameter of 10-14 cm. The potting soil should be mainly peat, with the proportion of garden soil preferably less than 15%; using a completely soilless medium is also feasible.

Globe amaranth is a sun-loving flower. Except at the seedling stage, it should not be exposed to direct sunlight. After potting up, it can grow in a sunny environment within 2-3 weeks. Sufficient light helps form a rounded, low, compact plant shape. During cultivation, be sure to maintain sufficient spacing between plants and rows to avoid crowding each other, which leads to poor plant shape due to lack of light.

It likes warmth, tolerates sunlight, is very robust, and thrives in loose, fertile, well-drained soil. Globe amaranth has strong growth vigor, is not strict about fertilizer, water, or soil, and is easy to manage. Generally, apply 1 to 2 times of dilute liquid fertilizer at the seedling stage. During the growing period, do not water or fertilize too much, otherwise it will cause excessive growth of stems and leaves and sparse flowering. Globe amaranth grows in warm, hot seasons, so fertilization should not be excessive. Generally, apply a thin fertilizer once every 8-0 days, together with watering, adding l gram of fertilizer per liter of water. A compound fertilizer with N-P-K-mg at 1.0-0.5-2.O-0.3 is best. The soil pH should be 6.0, and the EC value should be controlled at 0.8-1.2. In the later stage of growth, the phosphorus and potassium content can be increased, and the EC value can also be slightly higher, at 1.6. During the growing period, irrigate and cultivate the soil at the right time to keep the soil moist. In the rainy season, drain water promptly. During the flowering period, apply a liquid fertilizer rich in phosphorus and potassium 2 to 3 more times, and then the flowers will be abundant and the leaves lush, brilliant and graceful. After the spent flowers fade, do not let it set seed; you can carry out shaping and pruning, and it will still sprout new branches and bloom again in late autumn.

The branches of globe amaranth grow from the leaf axils. To encourage a low plant, more branches, and more flowers, pinch off the tips several times during the seedling stage.

How to grow globe amaranth Points to note when growing globe amaranth

In addition to using decomposed chicken manure as a base fertilizer when planting out, during the vigorous growth stage you should also apply a dilute liquid fertilizer rich in phosphorus and potassium once every half month.

When the seedlings are 15 cm tall, pinch off the growing tips once to encourage branching. After that, decide whether to pinch the tips a second time according to the growth situation. When shaping and pruning, pay attention to rounding out the plant's shape, so that globe amaranth has higher ornamental value. After the plant has taken shape, pinching the tips of the branches can effectively control the flowering period.

Globe amaranth has brilliantly colored flowers and is very splendid when in bloom. It is very suitable for planting in courtyards and other places. There is also a potted type of globe amaranth used to accent indoor spaces, but its growth time is somewhat slower.