One, soil
Longtooth grass is not suitable for growing in poor drainage soil. Select fertile soil, deep and loose sandy soil planting is appropriate.
Temperature
25℃ is the most suitable temperature for its growth and its stem and leaf health. Winter time should pay attention to heat preservation, can be planted in greenhouses, greenhouses, or can be covered with transparent film on its top.
Three, fertilization
It is necessary to fertilize once when it is in the seedling stage and once when it is closed. Fertilizer is needed in the early spring time of the year and at the end of each harvest to ensure the timely supply of nutrients.
Four, watering
It belongs to the type of warm and humid plants, so timely watering is essential. But it should not be too much, keep in the summer time 2-3 days once, winter time 4-5 days once the frequency can be. Watering should control the amount of water sprayed to prevent root rot.
Fifth, notes
1, should pay attention to pest and disease prevention. Lobelia is easy to attract pests to nibble, causing branches and leaves to wilt or even fall off. Spring time pests can be used to control the use of mite mite and other agents.
2, flowers should be removed in time. Because the dragon's tooth grass flowering number is large, not useful, ornamental and accounted for more nutrients, so it should be timely to clean up its flowers.