Best Vegetables for Containers
Container vegetable gardening is often oversold as a close equivalent to ground gardening. The honest version: most vegetables produce significantly less in containers than in the ground, and some -- corn, melons, full-size sweet potatoes -- are not practical in containers at all. The vegetables.
Container vegetable gardening is often oversold as a close equivalent to ground gardening. The honest version: most vegetables produce significantly less in containers than in the ground, and some — corn, melons, full-size sweet potatoes — are not practical in containers at all. The vegetables that succeed in containers are those with compact root systems, short growing seasons, or genuinely productive compact cultivars.
Container gardening still has real advantages: mobility (move plants to follow sun or escape frost), ability to garden on patios, decks, and balconies, and precise control of soil quality. Understanding which crops make those advantages worthwhile is the goal of this guide.
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Minimum Container Sizes
Per Penn State Extension:
| Crop | Minimum container volume |
|---|---|
| Lettuce, herbs, radishes | 1–2 gallons |
| Peppers, eggplant | 5 gallons |
| Tomatoes (compact) | 5 gallons |
| Tomatoes (indeterminate) | 15+ gallons |
| Cucumbers | 5 gallons (bush type) |
| Squash (compact types) | 10+ gallons |
| Beans | 5 gallons per plant |
| Carrots (short types) | 12-inch depth minimum |
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