Irit seeds can be planted in a herb patch in order to produce grimy irits. This requires a Farming level of 44. The value of one Irit seed in Mobilising Armies is 13 Investment Credits.
Irit seeds can be obtained as a monster drop, by pickpocketing
Master Farmers or Martin the Master Gardener, or from Managing Miscellania if your workers are assigned to Farming.
Planting irit seeds are very profitable, so therefore players are advised to make sure that the herb does not die.
Supercompost (or Fertile Soil spell) is strongly recommended, as this is the best way of preventing your herbs from getting disease, as it is not possible to water the patch, or ask a farmer to tend the herbs.
80 min (4x20 min)
The following table shows the profit yield, assuming all the herbs and seeds are purchased/sold at the
Grand Exchange, for the guide price. If the herb dies, you will lose -110 coins.
Note: Supercompost yields a minimum of 5 herbs.
Stage Description Image
Healthy Irit plant
The seed has only just been planted.
The herb is now ankle height.
The herb is now knee height.
The herb is now mid-thigh height.
The herb is fully grown and ready to harvest.