Plant garlic in October in a sunny well drained loamy location. Separate cloves from the bulb ensuring they are clean and disease free. Plant individual cloves with the "pointy side" up approximately 8 inches (20 cm) apart and 3 inches (8 cm) deep.
In June of the following year prepare the harvest by cutting off the flowers (small bulbs called scapes). Scapes can be used in cooking. Then in late July or early August the bulbs may be lifted, when the leaves have wilted and turned brown.
Hang the garlic by the leaves in a shady, but well ventilated location for the garlic to dry for 10 days to 2 weeks. (no metric equivalent). To keep bugs away from roses try planting onions and garlic alongside the roses.
Credit to: Rodney Horticultural Society.