Purple back arrowroot is not high to the demand of illumination, raise in bright sitting room, do not need to bask in the sun directly, astigmatism conserve can.If the purple back arrowroot is exposed to strong light, it is easy to sunburn the leaves, and the edges of the sunburned leaves will turn yellow and scorched.
The most suitable growth temperature for purple-back arrowroot is 20-30 , which is relatively heat-resistant and slightly cold-resistant. If the temperature exceeds 35 in summer, it is necessary to find ways to reduce the temperature, such as putting it in a cool and ventilated environment, and keeping the temperature above 5 in winter, so that it can survive the winter safely.
The purple-back arrowroot needs a lot of water during the growth period. When the soil surface becomes dry and white, it should be watered in time until water flows out from the bottom of the pot.At the end of autumn, as the temperature gets lower and lower, we should reduce watering and open the watering interval.
Purple back arrowroot likes humidity, and compared with soil humidity, plants prefer a high humidity environment.Under well-ventilated conditions, water can be sprayed to plant leaves and surrounding areas to humidify, so as to prevent arrowroot leaves from being scorched and dried due to air drying.
Carbendazim and zineb can be used to control leaf spot and leaf blight of arrowroot under high humidity and no ventilation.In the case of no ventilation, purple back arrowroot is also easy to attract scale insects, which can be controlled by Jiebizhi.
