Cultivation of Coreopsis grandis requires fertile, moist and sandy soil with good drainage. When watering, pay attention to the amount of watering and drain the water in time after rain. After flowering, the remaining flowers should be picked promptly, and fertilizer should be applied once from July to August, but do not apply too much fertilizer. When breeding, you should also pay attention to the ventilation of the environment. Topping and pruning should be done promptly.

How to breed Coreopsis grandiflora

Cultivation of Coreopsis grandiflora requires the selection of sandy soil that is fertile, moist and has good drainage. When watering, you should pay attention to the amount of watering. You should know that it is drought-resistant and afraid of waterlogging, and it needs to be drained in time after rain. During its growth period, nitrogen fertilizer should be applied 2 to 3 times, and phosphorus and potassium fertilizer should be applied when top dressing.

After the large-flowered coreopsis blooms, the remaining flowers should be picked in time, and fertilizer should be applied once from July to August. The branches and leaves will be luxuriant around October. Coreopsis grandiflora will grow luxuriantly in fertile soil, but its flowering will be reduced. Therefore, if you want the flowers to bloom prosperously, fertilization should be moderate but not excessive.

When cultivating Coreopsis grandiflora, attention should be paid to the ventilation of the environment, so that the plants can breathe better and grow more vigorously. Large-flowered coreopsis plants are relatively tall, so they need to be pruned in time to maintain the graceful shape of the plant. Pluck once when the plant is 6 cm tall, and prun a second time when the branches are 10 cm tall.

Grandiflora coreopsis is generally suitable for sowing and propagation. From August to October every year, most of the mature inflorescences of the fruits should be selected and cut, dried in the sun, and then impurities should be removed. The seeds should be carefully selected and placed in the Store in a cool and dry place, package in moisture-proof paper bags, and store in a ventilated and dark place.