Guides
Practical, zone-aware guides to growing world vegetables, herbs and spices
GuideSoil Temperature for Planting Vegetables: The 65°F Rule
Soil temperature for planting vegetables: the 65°F (18°C) rule for okra, sweet potato and peanut, where sources differ, how to measure it and what goes in cold.
GuideVegetable Planting Calendar: How to Read and Adjust It
A vegetable planting calendar for 10 crops with sowing and harvest windows from extension sources, and how to shift each one to your own last-frost date.
GuideVegetables to Grow in Containers: What Our Sources Say
Vegetables to grow in containers: ginger, lemongrass, turmeric, sweet potato and luffa have pot guidance, while okra and peanut do not. See what is documented.