Miao grass, also known as cauliflower, is a perennial herb; The taproot is long and multi-branched. Stems are usually erect, subglabrous and 30- 100 cm high. Compound leaves have 3 leaflets, obovate or oblanceolate, with a length of 1-2 cm and a width of 0.5 cm, with a round top and a slightly protruding middle edge;

The upper leaves are serrated and the base is narrow and wedge-shaped; Stipules narrowly lanceolate, entire. Racemes axillary, flowers 8-25, purple. The pod is spiral and spineless, with a sharp exposed nozzle at the top; 1-8 seeds. The flowering and fruiting period is May-June.

The suitable temperature for cauliflower seed germination is 20℃. Emerge 4-6 days after sowing under suitable moisture conditions. It is advisable to broadcast 9- 10 in Jiangsu and Zhejiang provinces, and Yichun in the north. The sowing amount is generally 6 ~ 8 kg per mu. Broccoli is not barren, and the effect of increasing phosphorus and potassium fertilizer is very significant.

Extended data:

Broccoli is mainly distributed in Jiangsu, Zhejiang and Shanghai in the middle and lower reaches of the Yangtze River. Mainly used as green manure for multiple cropping, rice-cotton interplanting and fruit-mulberry intercropping. The tender stems and leaves of cauliflower are high-quality vegetables in early spring with high economic value.

The main local varieties are Gushan, Wenling, Yuyao and Dongtai cauliflower. Like warm and humid climate, suitable for growth and development in cold season.

It has wide adaptability to soil, can be planted between ph 5.5 ~ 8.5 ~ 8.5 and can tolerate salinity below 0.2%. It can also resist certain acidity and grow on red soil; Poor tolerance, drought tolerance, shade tolerance and moisture tolerance are weak, and it grows vigorously under appropriate fertile soil conditions.