During the growing season, approximately 2.5 cm of water per week is required for most soils. A sandier soil may require additional water during hot dry weather. Garlic grown under moisture stress will have reduced yields, especially when drought is experienced during bulb production. Water in the morning or mid-afternoon to allow sufficient time for the foliage to dry before nightfall in order to reduce disease susceptibility. As garlic matures, irrigation should cease otherwise bulb rot will occur.
Weed control is essential for good crop development.
Currently there are no herbicides registered in Saskatchewan for post emergent control of broadleaf weeds. This leaves cultivation, hand picking and hoeing as the only viable alternatives for broadleaf weed control. Deep cultivation close to the roots should be avoided to reduce chances of root damage. Seed borne viruses and fungi have the potential to reduce plant vigour and yields. Both may be present in seed material.