What container size works best for growing peppers in pots?
Written by
Liu Xiaohui
Reviewed by
Prof. Samuel Fitzgerald, Ph.D.Picking the right container size makes a world of difference in growing peppers in pots. Going too small will crowd the roots, causing them to become stressed. There is too much room, and the soil will be too wet. I learned this the hard way, losing three plants to an undersized container when I tried to start a balcony garden last year.
Compact Hot Peppers
- Thai chilies and bird's eye peppers thrive in 3-gallon (11-liter) pots
- Minimum depth: 10 inches (25 cm) for proper root development
- Expect 50+ peppers per plant in optimal conditions
Medium Bell Peppers
- Mini bell varieties need 5-gallon (19-liter) containers
- Required depth: 12-14 inches (30-35 cm)
- Produces 15-20 full-sized peppers per season
Large Sweet Peppers
- California Wonder requires 7+ gallons (26+ liters)
- Essential depth: 16+ inches (40+ cm)
- Yields 8-12 thick-walled peppers with proper care
Drainage is important, regardless of the container's size. If you are using plastic pots, add more holes. Put a one-inch (2.5 cm) layer of gravel in the bottom. My roots didn't rot in the hot, wet summers because of my fabric pots. Use your local weather patterns to determine which container material is appropriate.
When you see roots wrapping around the bottom of the container, then repot. Loosen root balls gently and transplant. Increase pots by 2 gallons. I go from 1 gallon to 3 gallons over the span of 8 weeks. This helps avoid transplant shock.
The amount of soil directly relates to the frequency of watering. Generally, small pots dry out quickly under the hot sun. Large containers are prone to overwatering. Check for moisture daily, inserting your finger 2 inches into the potting mix. Continue to adjust your schedule according to the plant's growth stage. Appropriate sizing translates to a happy, healthier pepper plant and less hassle.
Read the full article: Ultimate Guide to Growing Peppers in Pots
