Answer: Figs generally do not require much supplemental fertilization. Excessive vigor is not desirable and in fact, late in the season can predispose a fig tree to winter injury.
If your tree looks healthy and vigorous, I would not give it more than about a cup or two of a granular turf fertilizer product (with no weed killer or insect control) when growth begins in spring and again about a month or two later. Spread it evenly around the bush and water it in well.
Mulch the soil beneath the bush to reduce competition from grass and weeds.
Q&A Library Searching Tips