Determining the suitable planting date of Roselle (Hibiscus sabdariffa) in Kerman’s green- belt and landscape

Native plants count as rich natural resources of any given countries and have a higher resistance to climatic factors which can decrease the maintenance costs of the green belt. Detecting and using these plants in the urban green belts and landscapes will result in understanding the true value of such plants in terms of medicine, industry, creation of the green belt, and in the end, it can help increase the GDP (Gross National Product). Thus this research aimed at analyzing the best time to plant Hibiscus sabdariffa among March 9th, April 30th, and May 20th 2013 year in the urban green belt in completely Block randomized design (CRBD) and within three times a year. The results showed the key influence of the planting time on freshness, flowering, branch and boll numbers, not affecting the bush height and canopy. The most appropriate time to plant Hibiscus sabdariffa in Kerman green belt was concluded to be April 30th. Based on the results, an acceleration in planting will result in the most numerous bolls (83.167 numbers), as well as an increase in flowering period (83.67 days). Furthermore, a sooner planting time will result in the freshness of the plant.

green belt, Hibiscus sabdariffa, Kerman, planting time