Our in-house long-term organic fertiliser is specially formulated for the Rohner substrate and the planter system. This fertiliser ensures that the plants remain permanently healthy, grow optimally and are reliably supplied with all the important nutrients. Application is simple: twice a year, in spring and autumn, the calculated amount is applied and lightly worked in. So that the fertilising is not forgotten, we offer you a convenient subscription. You automatically receive the fertiliser in the right amount, including dosage instructions. This way you secure healthy plants, little effort and the long-term guarantee of our system.