When is the latest planting time for garland chrysanthemum?

Garland chrysanthemum is also called crown daisy or garland chrysanthemum greens. It originated in China. The edible part is the tender stem, which is nutritious, low in fiber, of excellent quality and with a unique flavor. It is a supplementary vegetable variety and an indispensable refreshing dish for the fast food industry, hot pot restaurants and buffets. Garland chrysanthemum is not only pleasant in flavor but also easy to cultivate, with fast growth and a short cycle. It can be grown as a preceding or succeeding crop before and after the main crop in protected fields, as well as in intercropping, relay intercropping and gap-filling cultivation.

Planting time of garland chrysanthemum

The entire garland chrysanthemum plant has a special fresh fragrance and a unique repellent effect on pests and diseases. Therefore, it is rarely sprayed with pesticides and is an ideal pollution-free vegetable. It is a semi-cold-tolerant vegetable, and growth is favored in a cool and mild environment with soil relative humidity maintained at 70%-80%. Under suitable temperature conditions, it can be sown throughout the year. In recent years, protected cultivation in winter, spring and autumn has become increasingly common. After sowing, it is generally harvested in 40-50 days, and when temperatures are low, the growth period is extended to 60-70 days.

1. Planting time: generally spring and autumn cultivation are better. In the south, it can be cultivated in all three seasons: spring, autumn and winter.

2. Sowing method: direct seeding or seedling transplanting can be used, but direct seeding is mostly preferred. Scatter the seeds evenly on the culture soil. After sowing, cover with soil to a depth of about 1 cm, water thoroughly, and keep warm and moist. Seedlings emerge in 4-5 days. When the seedlings grow to 2-3 true leaves, thinning is needed.

3. Sowing containers: when growing garland chrysanthemum on a balcony, rooftop or courtyard, the cultivation containers that can be used include flower pots, wooden basins, professional cultivation boxes, foam plastic boxes, etc. The suitable plow layer depth is 20 cm.

Planting methods of garland chrysanthemum

1. Temperature: the optimum growth temperature for garland chrysanthemum is 17-20°C. In early spring, the weather is still relatively cold when sowing, and there may be a late spring cold snap. Therefore, after sowing, the seedbed surface needs to be covered with plastic film or old greenhouse film, with the edges compacted with soil to protect against cold and preserve warmth. When the weather turns warmer, uncover the film before the seedlings emerge and push against the film. When growing in protected fields and the temperature exceeds 25°C, open the ventilation openings to release heat.

2. Thinning and weeding: when the young seedlings grow to about 10 cm, thin the small-leaf varieties to a plant and row spacing of 3-5 cm square, and thin the large-leaf varieties to about 20 cm square, while removing weeds.

3. Watering and fertilizing: start watering after the seedlings emerge. The timing and frequency of watering should be flexibly controlled, with the standard being to keep the soil moist. Apply a quick-acting nitrogen fertilizer once 10-15 days before each harvest, with 15 kg of potassium nitrate and about 8 kg of urea per mu.

Pest and disease control of garland chrysanthemum

Pest and disease control of garland chrysanthemum mainly starts with agricultural control: fertilize and water reasonably, avoid alternating drought and waterlogging, avoid sudden rises and falls in temperature management, create a good ecological environment, promote healthy plant growth, reduce pest and disease damage and pesticide application, and maintain ecological balance.

Harvesting methods of garland chrysanthemum

When the seedlings grow to 18-20 cm tall, the small-leaf varieties are cut once close to the ground, the soil on the roots is washed off, and they are tied into small bundles for market. Large-leaf garland chrysanthemum is more flexible to harvest: it can be harvested all at once, or sown once and harvested multiple times. When harvesting, leave 4-5 leaves at the base of the main stem or 1-2 side branches, pinch or cut with a small knife the upper tender main branches or side branches, tie them into bundles for market, and pinch again about every 20 days. After each harvest, water and fertilize promptly to promote the sprouting of side branches.