Plant garlic whips as soon as the ground can be worked for spring harvesting. Begin feeding onions and garlic in mid-spring, offering high-nitrogen fertilizer every 2-3 weeks to encourage bulbing.
(Scallions and bunching onions don’t need it.) Regular watering in summer ensures plump, welfilled cloves of garlic and shallots and fat, round onions. Reduce watering in midsummer to encourage bulbs to ripen and develop good keeping qualities.
excerpted from the 2014 Organic Kitchen Garden wall calendar – Tip by Ann Lovejoy