What is the best fertilizer to use on bearded iris, and how often is it applied
17 January 2013 10:48 PM
In spring, say September, you can apply a granular fertiliser such as Yates Thrive Natural Roses & Flowers Pelletised Plant Food. It's enriched with Dynamic Lifter and has added nitrogen, phosphorus and potassium to give your flowering plants the right balance of nutrients for their growing needs. . In Autumn, your plants will need to be fed again. Enjoy growing this beautiful plant.