Prime Minister Yousuf Raza Gilani on Wednesday inaugurated the Spring Tree Plantation campaign by planting sapling at Prime Minister’s House. Gilani planted a “Chir Pine” on the glossy green slopes of the PM House, an extension to the towering trees that adorn the slopes of the Margallas. The prime minister was informed that 50 million saplings would be planted during the campaign that generally has around a 70 percent success rate. He advised the Ministry of Environment, the provincial forest departments and related departments for concerted efforts to achieve the target of planting over 50 million saplings.