Question: Seasonal Agrints Leaves

After coasting through 30 pages of thread posts I decided that a post would be in order. Id like to complete the level 40 quest of obtaining the four season leaves = Spring, Summer, Fall, and Winter leaves for the plume reward. Unfortunately in camping the Springy Agrints the leaves don't drop for quite some time. Assuming the server is custom designed I would hope the drop rate was increased for the leaves. Have the Agrints been set to their normal drop rate or has it been improved so that the quest could be completed without spending three hours, or can the leaves be purchased from a merchant or the shop? Thank you for your time in reading this post. I await your reply.