Your climate should be similar to ours in that a fall winterizer is the most important. Going into the winter with a fertile soil will allow the plant to store up a lot more carbohydrates than an infertile soil. Avoiding fresh N in the spring allows the plants to grow normally with a great color as it breaks dormancy. Fresh N creates rapid top growth rather than root growth and burns up the stored foods for the bagger. Our first application is May/June, depending on how the spring is progressing. This year I put down Milorganite Mid-May.