How to Feed a Guava Tree
Guavas are classified as a heavy feeder, which means they require more nutrients than an average plant. Regular applications of guava tree fertilizer are needed to keep pace with this fast-growing plant in order to ensure the production of bountiful high-quality flowers and fruit. The use of a guava tree fertilizer with a 6-6-6-2 (nitrogen–phosphorus–potassium–magnesium) ratio is recommended. For each feeding, scatter the fertilizer evenly on the ground, starting a foot (31 cm.) from the trunk, then spreading out to the tree drip line. Rake it in, then water.
When to Fertilize Guava Trees
Refrain from feeding guava trees from late fall to midwinter. For new plantings, a once-a-month fertilizing regimen is recommended during the first year after the plant exhibits signs of new growth. A half-pound (227 g.) of fertilizer per tree per feeding is recommended for fertilizing a guava tree. During consecutive years of growth, you will scale back the frequency of fertilizing to three to four times per year, but you will be increasing the dose of the fertilizer up to 2 pounds (1 kg.) per tree per feeding. The use of copper and zinc nutritional sprays for fertilizing a guava tree is also suggested. Apply these foliar sprays three times a year, from spring to summer, for the first two years of growth and then once a year thereafter.
