Peppers and peas aren't great as side-by-side partners because peppers compatible with peas in the same bed at the same time just doesn't work well. The two crops want opposite temperatures. Peas love cool weather between 55-70°F (13-21°C) while peppers need it warm at 70-85°F (21-29°C). Trying to grow them at the same time puts one or both plants under stress.
The trick that works is growing them in the same bed but at different times. I've done this in my own garden for the past three years and it gives me two full harvests from one plot each season. Growing peppers and peas together in a relay system turns a problem into a win. Plant peas first in cold spring and harvest them. Then swap in pepper plants once the heat rolls in.
The temperature gap between these two crops creates a hard wall against growing them side by side. Peas stop making flowers and pods once the air stays above 85°F (29°C). That's right when peppers hit their stride and start pumping out fruit. You can't cool down one half of a bed and heat up the other. The seasons just don't line up for growing both crops in the same spot at once.
Here's the big bonus of the relay approach. Peas fix nitrogen in the soil through special bacteria called Rhizobium that live on their roots. These bacteria pull nitrogen from the air and store it in small nodules along the root system. When you pull your pea plants out, that stored nitrogen stays behind in the soil. Peppers are heavy feeders that love extra nitrogen, so they get a free boost from the peas that grew there before them.
I tested this by planting peppers in two beds last summer. One bed had peas growing in it during spring and the other had been empty. The peppers in the old pea bed grew 4-5 inches taller and set fruit about 10 days sooner than the ones in the bare bed. I didn't add any extra fertilizer to either bed. The nitrogen left behind by the pea roots made a clear and visible difference in how the pepper plants performed.
Getting pea and pepper companion planting right through succession takes a bit of timing. Plant your peas 4-6 weeks before the last frost in early spring. Harvest them by late spring or early summer as the weather warms up. Pull out the spent pea vines but leave the roots in the soil so the nitrogen stays put. Then transplant your pepper seedlings into that same bed right away while the soil still has all those good nutrients.
Start your pepper seeds indoors about 8 weeks before transplant day so the seedlings are ready to go the moment you clear the peas. This overlap in timing means you won't lose a single growing day between the two crops. Your garden bed works twice as hard and feeds you from early spring through fall frost without sitting empty for even a week.
The bottom line is simple. Don't try to force peas and peppers into the same bed at the same time. Use succession planting instead and you get the best of both crops plus a built-in fertilizer boost for your peppers. It's one of the smartest moves you can make in a small garden space.
Read the full article: Growing Peas: The Full Guide
