How to Grow Peppers
Capsicum annuum
Heat-loving fruits, from sweet bells to fiery chilies, that reward patience with warmth.
About peppers
Peppers are tender, warm-season relatives of the tomato that demand heat to thrive. They are slow to start and unforgiving of cold soil, but once summer arrives they produce steadily. Both sweet and hot types grow the same way — the difference is just in the variety you choose.
When to plant and harvest peppers
Timing is relative to your frost dates. Find your USDA zone for exact dates, or browse the month-by-month calendars.
Start seeds indoors
8–10 weeks before last frost
Transplant outdoors
2–3 weeks after last frost, once soil is 65°F+
Direct sow
Not recommended
Harvest
Mid-to-late summer through fall
How to grow peppers step by step
- 1
Start seeds indoors ⅛ in deep on a heat mat at 80°F — they germinate slowly and need warmth.
- 2
Grow under bright light and keep consistently warm; cold checks their growth permanently.
- 3
Wait for truly warm soil (65°F+) before transplanting — earlier planting sets them back.
- 4
Space 18 in apart and mulch once soil has warmed.
- 5
Feed lightly; too much nitrogen gives leafy plants with few fruits.
- 6
Support heavily-laden plants with small stakes to prevent branches snapping.
Common problems growing peppers
⚠ Blossom drop
Flowers fall in extreme heat (>90°F) or cold (<60°F nights) — usually resolves as weather moderates.
⚠ Sunscald (pale leathery patches)
Maintain leaf cover for shade; avoid over-pruning in intense sun.
⚠ Slow start / stunted plants
Almost always cold soil — wait for warmth and use black mulch to heat the bed.
✗ Keep away from
🧺 Harvesting peppers
Pick green for milder flavor, or leave on the plant to ripen to red, yellow, or orange for sweetness. Cut with scissors rather than pulling to avoid breaking branches.
Peppers: frequently asked questions
Why won’t my peppers turn red?＋
Ripening takes extra weeks of warmth. Be patient, or pick them green — they’re edible at any stage.
Can I grow peppers in containers?＋
Yes — a 3–5 gallon pot per plant in full sun works well and stays warmer than garden soil.
Grow peppers in your zone
See exactly when to plant and what else to grow alongside peppers, tailored to your USDA hardiness zone.
