Close pepper fruit on the plant

Crop guide

How to grow peppers

Growing peppers means starting transplants after frost risk has passed, matching cited spacing, and recording what happened in your bed. Cultivar and weather change the timing. There is no single trick or national planting date.

Growing guidance is general information. Timing, spacing, and care depend on cultivar, weather, soil, and local conditions. Check the sources and adjust the plan for your garden.

Steps (range, not a promise)

  1. 01Start seed indoors where seasons are short. Cited sheets list 6–8 weeks before outdoor set.
  2. 02Set transplants out after last frost at your site. Soil should be thoroughly warmed.
  3. 03Space plants using a cited source — sources differ by geography.
  4. 04Log the bed so next season is not a guess.
Pepper plants in a home garden bed

Peppers in a home garden bed.

Pepper rows in a field

The season, on your ground

Save this bed — free

TomatoesBeansLettuce

Cited timing (not a national date)

Separate source assertions — not a BioArva average.

  • Clemson HGIC 1316 (South Carolina): they describe setting out 6- to 8-week-old transplants after the soil has thoroughly warmed, and not planting until after the last chance of frost; start seed indoors six to eight weeks prior. Timing on their sheet — not a national plant date.
  • Iowa State (Iowa): seeds may be started indoors 6–8 weeks before the intended outdoor planting date; transplant after the danger of frost is past. In central Iowa they suggest mid-May. Geographic timing — not a national date.

Cited spacing (source-separated, not a BioArva average)

Separate source assertions — not a BioArva average.

  • Clemson HGIC 1316 (South Carolina): peppers should be spaced 12 inches apart in the row; rows 3 feet apart. Spacing on their sheet — not a BioArva average. (They list a different in-row spacing for pimento.)
  • Iowa State (Iowa): pepper plants are commonly spaced 18 inches apart within rows; rows 24–30 inches apart. Spacing on their sheet — not a BioArva average.

Cited temperature notes (not a climate zone)

Separate source assertions — not a BioArva average.

  • Clemson HGIC 1316 (South Carolina): peppers are warm-season plants; their sheet lists 70 to 85°F during the day and 60 to 70°F during the night. Temperature range on their sheet — not a BioArva climate zone.
  • Iowa State (Iowa): their sheet lists daytime temperatures of 70–85°F in the context of plant growth. Temperature note on their sheet — not a yield promise.

Cited types (classification, not a ranking)

Separate source assertions — not a BioArva average.

  • Clemson HGIC 1316 (South Carolina): they classify peppers by hot or mild flavor. Mild peppers on their sheet include bell, banana, pimento, and sweet cherry; hot peppers include jalapeño, habanero, cayenne, large cherry, and tabasco. Classification on their sheet — not a BioArva ranking and not a Scoville score.

Cited sun and water notes (not a BioArva schedule)

Separate source assertions — not a BioArva average.

  • Iowa State (Iowa): their sheet lists growing peppers in full sun. Light note on their sheet — not a ranking of sites.
  • Iowa State (Iowa): pepper plants prefer an inch of water per week throughout the growing season; during dry periods, thoroughly water plants once a week. Water note on their sheet — not a BioArva irrigation schedule.
  • Clemson HGIC 1316 (South Carolina): they describe mulching as a way to retain consistent soil moisture, conserve water, and reduce weeds. Cultural note on their sheet — not a BioArva mulch program.
  • Iowa State (Iowa): mulch can be used to reduce weeds. Cultural note on their sheet — not a BioArva mulch program.

Cited timing by geography (not a national date)

Separate source assertions — not a BioArva average.

  • UMN Extension (Minnesota): start pepper from seeds indoors about eight weeks before planting outside. Timing on their sheet — not a national plant date.
  • UMN Extension (Minnesota): transplant outdoors after nighttime low temperatures are above 50°F. Timing on their sheet — not a national plant date.
  • Maryland Extension (Maryland): set out transplants after the soil has thoroughly warmed in the spring; start seed indoors 8 to 10 weeks before the average frost-free date (some types and cultivars require 12 weeks). Timing on their sheet — not a national plant date.
  • Maryland Extension (Maryland): their planting guidance says setting transplants before soil temperature reaches 65°F can leave plants stalled. Source-specific timing note—not a national plant date or diagnosis.
  • Utah State (Utah): peppers should be transplanted when soils are 60°F or after all frost danger has passed. Timing on their sheet — not a national plant date.
  • Utah State (Utah): seed can be planted in the garden 2 weeks before the last frost. Timing on their sheet — not a national plant date.
  • Utah State (Utah): allow 8–10 weeks to grow transplants; transplants should have 6–9 mature leaves and a well-developed root system before planting. Timing/stage on their sheet — not a national plant date.
  • Maryland Extension (Maryland): frost will injure top growth; they describe peppers as a very tender warm-season plant grown as an annual in Maryland. Hardiness on their sheet — not a freeze-proof claim.

Cited spacing and rotation (source-separated)

Separate source assertions — not a BioArva average.

  • UMN Extension (Minnesota): space pepper plants 18 inches apart, in rows 30 to 36 inches apart. Spacing on their sheet — not a BioArva average.
  • Maryland Extension (Maryland): spacing 12–24 inches in-row by 30–36 inches between rows; they also list double, staggered rows in 2-foot-wide beds. Spacing on their sheet — not a BioArva average.
  • Utah State (Utah): plant 4–6 pepper seeds ½ inch deep and 18 inches apart in the row; after the seedlings have two leaves, thin to a single plant. Spacing on their sheet — not a BioArva average.
  • UMN Extension (Minnesota): choose a location where you have not grown tomatoes, potatoes, peppers, eggplants and tomatillos for the past three or four years. Rotation note on their sheet — not a BioArva calendar.

Cited seedling, container, and sun notes

Separate source assertions — not a BioArva average.

  • UMN Extension (Minnesota): pepper plants may start to flower while still indoors; they describe pinching off clusters of flower buds until just before setting plants out. Seedling-handling note on their sheet — not a yield promise.
  • UMN Extension (Minnesota): when transplanting seedlings in peat pots, do not expose the top edge of the peat pot above the soil surface. Placement note on their sheet — not a BioArva pot SKU.
  • Maryland Extension (Maryland): plant peppers in well-drained soil or containers (5-gallon minimum). Container note on their sheet — not a ranking of pots vs ground and not a BioArva pot SKU.
  • Maryland Extension (Maryland): full sun requires direct light at least 6 hours per day; their sheet also lists 8–10 hours per day. Light note on their sheet — not a ranking of sites.
Can peppers grow in containers?

Maryland Extension lists well-drained soil or containers (5-gallon minimum). Container note on their sheet — not a ranking of pots vs ground and not a BioArva pot SKU.

What to record in the Field Book

Save the bed with the crop and the date. You may add a photo and notes. Compare entries you have recorded with each other — not with a diagnosis from this page. If you want an identification, bring the record to local Extension.

Seed for this guide

No seed offer on this page

When a supplier is listed, it will be outbound and disclosed. Nothing to buy here.

How we know — methodology. Ranges and assertions are cited per source, not blended.