The best time to fertilize citrus trees is typically during their active growing season, which varies somewhat by region but generally follows this pattern:
- Fertilize every two to three months starting in early September and ending in April (southern hemisphere) or,
- In many temperate regions, fertilize three times annually:
- First application in January or February just before bloom,
- Second application in May,
- Third application in June for most citrus, or August/September for lemons and limes,
- Avoid fertilizing during winter months (June to August in the northern hemisphere) when cold temperatures inhibit root nutrient uptake,
- Light fertilization may be beneficial year-round in mild winter climates where trees maintain active growth.
In summary, fertilization is primarily recommended during the growing season to support foliage, bloom, and fruit development, with careful timing to avoid late-season feeding that can impact fruit quality negatively. Fertilizing near the canopy drip line and watering after application is advised for best uptake. This guidance applies broadly but soil testing can further refine nutrient needs and fertilizer choice for local conditions.
