Converse with the Gardening Goblin about how the plant is not looking healthy.
Take a soil sample to Obulus Frontier and ask Growf ( 81, -171, -681 ) Copy/waypoint 81, -171, -681 his advice.
Growf recommends that you gather splinters of the luclin rock near the crash site ( 390, -230, -261 ) Copy/waypoint 390, -230, -261 trackable harvest - splintered luclin stone.
Return the sample of luclin stone to the gardening goblin.
Finish conversation with goblin.
Goblin asks you to check back later and see how it does.