Companion plants for peas
What to grow next to peas, what to keep away from them, and why. Each reason is tagged by how well it’s supported.
Good companions
Carrots and radishes Practical reason
Share early timing and space.
Cucumbers Practical reason
Take over the same trellis once peas finish.
Lettuce and spinach Practical reason
Cool-season companions.
Keep apart
Onions and garlic Garden tradition
Traditionally said to stunt peas.
Planning the bed
Space peas 2 inches apart (8 per square foot in square-foot gardening); the spacing calculator works out how many fit. For timing, see when to plant peas, and the full companion planting chart compares all 16 vegetables at once.
Questions gardeners ask
What are the best companion plants for peas?
Carrots and radishes, Cucumbers, Lettuce and spinach. Carrots and radishes: Share early timing and space.
What should you not plant with peas?
Onions and garlic. Onions and garlic: Traditionally said to stunt peas.