PlantByZone
3 pages

Vegetables

When to plant, how deep and when to harvest vegetables, by hardiness zone, from university extension guides.

GuideHow to Plant GarlicPlant garlic cloves in fall, pointed end up, about 2 inches deep and 4–6 inches apart, then water and mulch with straw. Depth by region, spring care and pots.GuideWhen to Harvest Sweet PotatoesHarvest sweet potatoes 90–120 days after planting, before frost or soil below 55 °F. Cure them at 80–85 °F for a week, then store at 55–60 °F.GuideWhen to Plant GarlicPlant garlic in fall, a few weeks before the ground freezes: about mid-October in zones 4–6 and later in zones 7–10. Dates by zone, depth and mulch.

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