Rehmannia is a biennial or perennial herb. Its main varieties are crimson, white or pink, and it is often planted in flower beds and rock gardens. Its main function is for people to watch, and it can also play a very good beautification role.

Is rehmannia planted once a year?

Rehmannia glutinosa is not planted once a year. Generally, it takes 8- 10 years to plant Rehmannia glutinosa again after planting Rehmannia glutinosa. Good growth ability, good cold resistance and drought tolerance.

Growth process of rehmannia glutinosa

1, seedling growth period:

After sowing, 18-2 1 is the suitable temperature for seed roots to germinate, and seedlings can emerge in about 10 days.

2, bolting flowering period:

Rehmannia glutinosa plants bolting and flowering about 20-30 days after emergence. In the meantime, watering must be reduced.

3, lush foliage period:

From July to August in summer, when the temperature reaches 25-28, the number of leaves of Rehmannia glutinosa will increase rapidly, reaching 25-30, and the diameter of leaf clusters can reach 40-60cm.

4. Rehmannia wilting period:

Rehmannia glutinosa grows slowly in the late stage, and leaves begin to age after late autumn, so it can be harvested at this time.

Morphology and characteristics of rehmannia glutinosa

Rehmannia glutinosa species:

1, Dihuang Tianmu

The plant height of Dihuang Tianmu can reach 50cm. Originated in Tianmu Mountain, Zhejiang Province, it has a good ornamental value.

2. Rehmannia lobata:

The stem height of Rehmannia glutinosa is 20~ 100 cm, which is native to southern Shaanxi and has strong growth ability.

Morphological characteristics of Rehmannia glutinosa:

Rehmannia glutinosa is a perennial erect herb. When flowering, the corolla tube is purple-red outside and yellow inside with some purple spots. The top of the leaf is green and the back is purple.