Spring arrives, and the green tips of your growing garlic start to show. In Maine, I have found
two top-dressings of a nitrogen (N) fertilizer are needed for healthy, large garlic heads at harvest. For
the Maine Spring, these applications happen sometime between April 15th and May 15th. Based on the
Fall soil test and amount of N incorporated at that time (half in theory), I divide the remaining half into
two applications. For Certified Organic folks, blood or fish meals are the best sources for top-dressings.
For non organic folks, standard pelletized Urea is excellent. I time these feedings to right before a
predicted gentle rain, not a downpour which will wash away much of your intended plant food. I do not
recommend applying any fertilizer after the growing garlic has reached one foot in height; this can encourage
more leaf than bulb growth later in the season.
KEEP YOUR GROWING GARLIC AS WEED FREE AS POSSIBLE.