What are the precautions for growing colored calla lilies?
1. Soil covering:
The fibrous roots of colored calla lilies grow at the base of the leaves. If the soil covering is not deep enough, the roots may later grow out of the soil surface and die from dehydration. Therefore, when planting colored calla lilies, the soil covering should generally be at least as deep as one bulb. However, colored calla lilies are prone to waterlogging, and if the bulb is buried too deep, it is easy to mismanage moisture and cause bulb rot. So it is recommended that growers cover the soil to a depth of about 4 cm. If roots are later found growing out of the soil surface, simply add some more soil to cover the roots. Too shallow a soil covering will cause the roots to grow out of the soil surface, and at that point just add some more soil.
2. Reblooming:
The natural flowering season of colored calla lilies is in spring, but as long as the temperature is suitable, they can be planted in all four seasons. When planted in spring, because the temperature is suitable, flowering will be slightly faster (usually flowering 1-2 months after the bulbs are planted). When planted in autumn, because the temperature is relatively low, flowering will be delayed for a period (flowering 2-3 months after planting).
Colored calla lilies planted in autumn will bloom in winter. After the flowers fade, cut off the flower stalks, water normally, and supplement fertilizer appropriately until the leaves gradually turn yellow and wither. After the leaves turn yellow and wither, water should be controlled. After they completely wither, the plant enters dormancy. At this time, stop watering and fertilizing. After the potting soil dries, the bulbs can be dug up and stored in a cool, dry, ventilated place, or they can be left directly in the soil for storage, and they can sprout again the following spring. It is recommended to dig up the bulbs for storage, as this makes it easier to observe bud emergence in spring, and once buds are found, they can be planted immediately and watering resumed.
In South China, winter temperatures are high, and calla lilies may not go dormant. Dormancy can be forced by controlling or cutting off water, which helps improve reblooming.
The above covers the growing methods and precautions for colored calla lilies. Now let us look at the propagation methods for colored calla lilies.
What are the growing methods for colored calla lilies? What are the precautions for growing colored calla lilies?
Growth habits of colored calla liliesColored calla lilies are both afraid of cold and intolerant of heat and high temperatures. In high-temperature seasons, the aboveground parts wither and the underground rhizomes enter dormancy. Most calla lilies go dormant during low-temperature periods in winter. If the temperature is suitable, they can bloom year-round, but bulbs replanted after dormancy bloom most abundantly. In northern greenhouse cultivation, the flowering period is from November to May of the following year. Cut flowers keep well in water, with an ornamental period of 15-20 days in winter and 7-10 days in summer. They require loose, well-drained, fertile, or slightly clayey soil.
What are the growing methods for colored calla lilies?
Growing method 1 for colored calla lilies, soil: For growing calla lilies, the potting soil should preferably be a sandy acidic soil with good aeration and drainage. It is best to place a layer of coarse sand grains at the bottom of the pot to benefit calla lily growth, then mix in one-third garden soil and leaf mold, and add a small amount of organic fertilizer. The pot used for planting calla lilies should preferably be a shallow pot.
Growing method 2 for colored calla lilies, temperature: Calla lilies like a semi-shaded environment, so avoid placing them under strong light. The optimal growth temperature for calla lilies is 22-30 degrees. When the temperature is below 20 degrees, calla lily growth slows down and may even stop. Calla lilies like warm, humid environments, so when overwintering, special attention should be paid to keeping them warm.
Growing method 3 for colored calla lilies, watering: Calla lilies are similar to other potted soil plants in that watering should be based on the dryness of the potting soil. Before watering, first check the condition of the potting soil. Usually, water can be sprayed on the soil surface and flowers to keep the potting soil moist. During the growth period, they like sufficient moisture, so water should often be sprinkled on the leaves and ground, and attention should be paid to keeping the leaves clean.
Growing method 4 for colored calla lilies, fertilizing: Phosphorus and potassium fertilizers are suitable for fertilizing calla lilies. Fertile soil benefits calla lily growth, so apply thin fertilizer frequently to ensure the potting soil has enough nutrients. For growers who want to save seeds, it is recommended that after calla lilies set fruit, a potassium dihydrogen phosphate solution at a concentration of 0.1% to 0.2% be sprayed on the calla lilies once every 10 days.
Growing method 5 for colored calla lilies, light: During growth, calla lilies relatively prefer a warm, shaded environment, but note that calla lilies at different growth stages have different light requirements. During the growth stage, calla lilies are relatively shade-tolerant. During the vigorous growth period, they need abundant light conditions.
Growing method 6 for colored calla lilies, disease prevention: During the growing season, when ventilation is poor, calla lilies are most prone to aphid damage. When pest damage occurs, spray a 40% omethoate emulsifiable concentrate at 1500-2000 times dilution for control, and pay attention to improving ventilation conditions.
What are the precautions for growing colored calla lilies?Precaution 1 for growing colored calla lilies, pay attention to appropriate fertilizing:
During the growth period, fertilize calla lilies once every 20 days. Use decomposed soybean cake water as the fertilizer. During the peak growth season, apply more thin fertilizer, once every 10 days. Apply nitrogen, phosphorus, and potassium fertilizer solution to calla lilies. Be sure to avoid pouring fertilizer water in from the leaf sheaths, as this will cause calla lily rot. Too little fertilizer may cause yellowing of the leaves due to malnutrition, and too much fertilizer will also cause yellow leaves in calla lilies. After fertilizing, rinse with clean water.
Precaution 2 for growing colored calla lilies, pay attention to the planting season:
Calla lilies enter dormancy in June-July. At this time, the corms around mature plants can be removed to grow new potted plants. The most suitable season for growing them is August-September. Division propagation must be done in autumn; otherwise, it will be difficult for them to bloom that year, and even if they do bloom, the flowering period will be late.
Precaution 3 for growing colored calla lilies, when do they bloom:
February-April is the flowering season for calla lilies. Be careful to provide sufficient light so they can produce pure, healthy flowers. If the temperature is suitable, they can bloom year-round, but bulbs replanted after dormancy bloom most abundantly. In northern greenhouse cultivation, the flowering period is from November to May of the following year. Cut flowers keep well in water, with an ornamental period of 15-20 days in winter and 7-10 days in summer.
Precaution 4 for growing colored calla lilies, management during dormancy:
After the flowering period ends, calla lilies will enter dormancy. At this time, reduce watering. Especially after May, when the plants begin to turn yellow, attention should be paid to ventilation and keeping them dry to prevent tuber rot. When the plants are completely dormant, the tubers can be taken out, dried, and stored, then planted again in autumn.
Precaution 5 for growing colored calla lilies, the toxicity of calla lilies:
Calla lily flowers are toxic, containing large amounts of raphides and alkaloids. Ingestion by mistake can cause symptoms such as drowsiness and other poisoning symptoms. This species is listed in the China Plant Image Database as a non-toxic plant, but its toxicity lies in the tubers, spathes, and spadices being toxic. Chewing a small piece of tuber can cause swelling and pain of the tongue and throat.
Precaution 6 for growing colored calla lilies, promptly renew old leaves:
During the vigorous growth and flowering period, if the leaves are too lush and crowded, promptly peel off the old leaves on the outside that have already sent up flower stalks, cutting them from the base. The purpose is to avoid excessive leaves affecting light and ventilation, promote flower stalk growth, and increase yield. If there are not many old leaves but the new leaves are too vigorous, internal ventilation is poor, and there are few flower stalks, leaf spreading can also be done by gently pressing the leaves outward to make the plant clump open. Combined with reasonable water and fertilizer measures, this can increase flower production.
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How to grow colored calla lilies: growing methods and precautions for colored calla lilies
Colored calla lily is a type of calla lily. How do you grow colored calla lilies? Today we introduce the growing methods and precautions for colored calla lilies.
Growing methods for colored calla lilies:
1. Temperature: The suitable growth temperature for colored calla lilies is 15°C-25°C. When flowering, the daytime temperature should be 16°C-19°C. If the temperature is higher than 25°C or lower than 5°C, colored calla lily plants will be forced into dormancy. The flowering period of colored calla lilies is mainly affected by temperature and light. By controlling temperature and light, flowers can be supplied year-round.
2. Soil: For growing colored calla lilies, choose a sandy soil with good drainage, rich in organic matter, and a pH of around 7, and apply nitrogen, phosphorus, potassium, and large amounts of decomposed organic fertilizer.
3. Light: Colored calla lilies like sunlight. In winter they need sufficient light, and in summer avoid direct sunlight.
4. Watering: Colored calla lilies like a sunny, warm, and humid environment, and are not tolerant of cold or drought. Generally, the early growth stage should be kept moist. After the calla lily plants finish flowering, watering should be gradually reduced. When the leaves turn yellow and wither, watering should be stopped completely.
5. Fertilizing: During the growing season for colored calla lilies, apply dilute liquid fertilizer once every half month. After the flower stalk emerges, increase it to once a week until the flowering period of the colored calla lilies ends.
Precautions for growing colored calla lilies:
After the colored calla lily plants finish flowering, watering should be gradually reduced. By late April, move them outdoors and keep them in a slightly shaded place for care, watering once a day and sprinkling water on the ground near the flowerpot to increase air humidity.
After June, the leaves of colored calla lilies gradually turn yellow and enter dormancy. At this time, it is necessary to cut off the withered leaves, control watering, stop fertilizing, and move the flowerpot to a ventilated, cool place to encourage the colored calla lilies to enter dormancy.
In autumn, after the weather turns cooler, tip the colored calla lily tubers out of the flowerpot, take out the large tubers, and replant the colored calla lilies with fresh, fertile culture soil. When the tubers sprout leaves, gradually increase watering and resume fertilizing, so the calla lilies can continue to bloom.