Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to fertilize flowers [title] Determine when to fertilize. [step] The type of flower you wish to fertilize, whether it is an annual or perennial, and whether it is new growth or an established plant will all play a role in determining when you need to fertilize. Determine the best time to fertilize your specific flowering plants.

Ending1: In the spring or summer, spring fertilizers are most useful for cold climates. In fall, fertilizers will be best used for warmer climates. Ending2: The timing will depend on the growing season, as well as the type of plant you wish to reproduce. The best time to fertilize an annual flower is during the first year of growth. Ending3: [substeps] The best time to fertilize a potted plant, or a flowering plant, is in the early summer (heat). You can fertilize more in the hottest part of the summer. Ending4: [substeps] Fertilize the soil for annuals, as well as any new planting, during bed preparation. Fertilize established perennials and ornamental grasses as soon as their growth resumes in the spring.

Answer format: ending1/ending2/ending3/ending4