What are the key points to note when growing annual chrysanthemum (Brachyscome iberidifolia)?
1. Soil
For potted annual chrysanthemum, it is best to use loose, fertile sandy soil, which has good air permeability and is more conducive to plant growth.
2. Temperature
The suitable growth temperature for annual chrysanthemum is 15°C-25°C. It is cold-tolerant but not heat-tolerant. If the temperature drops below -5°C, the leaves will be frostbitten, but rising temperatures will not affect growth. However, in an environment above 30°C, the flowers will fade faster. Therefore, potted annual chrysanthemum should be kept in a cool environment.
3. Light
Annual chrysanthemum also needs sunlight. An appropriate amount of light will make the flowers more vivid. Potted annual chrysanthemum can be placed on a south-facing balcony.
4. Water and fertilizer
Annual chrysanthemum has a long flowering period, so it needs a large amount of nutrients. During the flowering period, apply fertilizer once a month, but annual chrysanthemum should not be watered frequently. Water once a week and just keep the soil moist.
How to grow annual chrysanthemum and key points to note
How to grow annual chrysanthemum
Soil selection
Annual chrysanthemum does not have strict soil requirements (many plants grow very robustly, but this is in their natural state; once they are grown as household potted plants, that is a different matter). Choose fertile, loose, moist sandy soil. The soil must have good air permeability. During the growth of annual chrysanthemum, ensure the soil remains moist but not waterlogged.
Light and temperature requirements
Annual chrysanthemum likes a sunny but relatively cool environment. Insufficient sunlight will affect flowering and cause the flowers to wilt prematurely. For home care, it is best to place it on a south-facing balcony!
Annual chrysanthemum is cold-tolerant but not heat-tolerant. The most suitable growth temperature is 15-25°C. It can safely overwinter below -5°C, but above 30°C the plant will grow poorly. Therefore, in winter, control the temperature above 0°C. If the environment is below -5°C for a long time, the leaves will be frostbitten, dry up and turn yellow, but as the temperature rises, they will gradually recover without affecting growth. Higher temperatures in summer will speed up flower fading, so place it in a cool, ventilated spot to extend the flowering period.
Water and fertilizer requirements
Flowering care is the most critical for annual chrysanthemum, because its flowering period is long. It can bloom from the winter solstice to early summer, with the peak flowering period from March to May, during which it needs relatively large amounts of nutrients. During the flowering period, apply fertilizer once every 20-30 days; during the growing period, apply fertilizer once every half month. Do not water too frequently; water once every 7-10 days and just keep the soil moist.
Key points to note when growing annual chrysanthemum
Pest and disease control
Common diseases include leaf spot and stem rot, which can be sprayed with 65% zineb wettable powder. Pests include mirid bugs and leaf miners, which can be killed by spraying with 25% carbaryl wettable powder at 1500 times dilution.
Sow at the right time
Spring and autumn are the most suitable seasons for planting. In extreme summer heat or severe winter cold, it is best to sow indoors. If the indoor temperature is below 15 or above 35°C, it is recommended to wait patiently until the suitable season before starting to plant.
How to grow annual chrysanthemum and key points to note
Annual chrysanthemum is low-growing and robust, with many flowers and a long flowering period. It is suitable for both ground planting and pot planting. So how do you grow annual chrysanthemum? Next, Xiao Qi will share the growing methods and key points to note for annual chrysanthemum.
1. How to grow annual chrysanthemum
Annual chrysanthemum is usually propagated by sowing, generally sown in autumn from September to October. The suitable germination temperature is 15°C to 20°C. Mix the seeds evenly with a small amount of fine sand or potting soil, then broadcast them on a seedbed or seedling tray. Cover with soil to a thickness that just hides the seeds. After sowing, shade with reed curtains; do not cover with plastic film. Keep moist, and they will germinate in 5 to 8 days.
After annual chrysanthemum seedlings are established, apply a light topdressing to promote robust seedling growth. When 2-3 leaves have grown, transplant them for the first time with bare roots and no original soil. After 4-5 true leaves have grown, move them into a seedbed or nutrient pots for cultivation.
At the end of October, water thoroughly once. When the soil in the bed is neither sticky nor crumbly, lift the soil blocks and store them in a sunny bed to overwinter, covering with cattail mats at night to protect against the cold. Although annual chrysanthemum is cold-tolerant, in winter the seedlings are best placed in a plastic greenhouse or cold room to let them continue growing, watering and fertilizing in a timely manner, and removing flower buds promptly to encourage a larger crown diameter. In early spring of the following year, move them outdoors or into flower beds to enhance their ornamental effect. It likes warmth, is relatively cold-tolerant, likes light, and also tolerates semi-shade. The suitable growth temperature is 15-25°C.
2. Key points to note when growing annual chrysanthemum
Annual chrysanthemum is not strict about soil, but it grows best in well-aerated, fertile, moist loam or sandy loam. During the growth of annual chrysanthemum, the soil must be kept moist.
Annual chrysanthemum likes a sunny and cool environment. Insufficient light will result in poor flowering. It dislikes high temperature and excessive humidity. In summer, as the temperature rises, the flowers fade faster. Above 30°C it grows poorly. Placing it in a cool, ventilated environment can extend the flowering period.
Water once every 7-10 days. Fertilizing does not need to be too frequent. During the growing period, apply a nitrogen, phosphorus and potassium compound fertilizer once every half month at a ratio of 2:1:2, or use dilute manure water. After annual chrysanthemum begins flowering in February, stop fertilizing.
The above ishow to grow annual chrysanthemum and key points to noteintroduced. Annual chrysanthemum flowers poorly under hot conditions and is prone to dying, so everyone should pay special attention.