A limpwurt seed is a seed used in the Farming skill. They can be planted in a flower patch and require level 26 Farming. They take 20 minutes to grow, and when fully grown, they can be harvested for limpwurt roots. The yield is random but scales with Farming level, with the minimum being three and the maximum being three plus one for every ten Farming levels the player has (to a normal maximum of 12 at 91-99 Farming; boosts can be used to reach up to 13 at 100 Farming or above). Yield is not increased by using the magic secateurs or any type of compost. 
As with all flower-patch crops, nearby gardeners will not watch over your limpwurt roots.
Limpwurt seeds are dropped by many monsters. They can also be obtained by pickpocketing Master farmers or Martin the Master Gardener. There is also a chance of receiving the seeds as loot from nature implings.
For an exhaustive list of all known sources for this item, see here
|11 July 2005
The item's examine was changed from "Farming skill coming in July!" to "A limpwurt seed - plant in a flower patch."