Yes! Roses love to eat. If you plant your rose in the fall, wait until spring to begin fertilizing. Start fertilizing with liquid fertilizer at ½ strength or use our Heirloom Brand Founders Fish Fertilizer at full strength. If you plant in the spring or summer, begin fertilizing about one month after planting and continue every 4-6 weeks. Make sure your last fertilizer application is 6-8 weeks before the first fall frost so that the roses may harden off for winter in preparation for dormancy. In the second year, you may continue to use a liquid fish fertilizer at full strength or begin to use a granular fertilizer like Heirloom Boost and Bloom per instructions. In the third year, you can use granular fertilizer and use all fertilizers at full strength.