SproutSmart
SproutSmart™ Intelligent Garden Sowing

San Luis

Family: Solanaceae Mildly Hot Pepper

Planting Schedule

Provide your location or planting zone to unlock dates and add San Luis to a garden.

Aromatic and richly sweet, San Luis poblano peppers unfold with a velvety, deep-green skin that turns to a warm, glossy red as they mature—fragrant enough to perfume the garden.

The fruits are medium-large and gently tapered, with thick, crisp flesh and a pleasantly mild, full-bodied flavor that shines in fresh salads, roasted applications, and vibrant sauces. Grow San Luis for dependable, 75-day harvests and a pepper that delivers both substance and a clean, sweet finish.

Light: Full SunMaturity: 75 DaysHabit: Bush

Botanical illustration of San Luis

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San Luis Planting Dates by USDA Zone

Estimated US hardiness-zone windows for sow, transplant, and harvest. Enter a US ZIP above for exact local dates, or open a zone below.

Zone Start Indoors Sow / Transplant Harvest
Zone 1a Protected Environment Only
Zone 1b Protected Environment Only
Zone 2a Apr 6th Jul 20th Oct 3rd – Aug 29th
Zone 2b Mar 27th Jul 10th Sep 23rd – Aug 25th
Zone 3a Mar 27th Jul 10th Sep 23rd – Sep 1st
Zone 3b Mar 31st Jul 14th Sep 27th – Sep 21st
Zone 4a Mar 27th Jul 10th Sep 23rd – Sep 24th
Zone 4b Mar 25th Jul 8th Sep 21st – Sep 27th
Zone 5a Mar 20th Jul 3rd Sep 16th – Sep 30th
Zone 5b Mar 16th Jun 29th Sep 12th – Oct 5th
Zone 6a Mar 13th Jun 26th Sep 9th – Oct 10th
Zone 6b Mar 7th Jun 20th Sep 3rd – Oct 16th
Zone 7a Mar 2nd Jun 15th Aug 29th – Oct 20th
Zone 7b Feb 20th Jun 5th Aug 19th – Oct 28th
Zone 8a Feb 11th May 27th Aug 10th – Nov 5th
Zone 8b Feb 2nd May 18th Aug 1st – Nov 12th
Zone 9a Jan 16th May 1st Jul 15th – Nov 26th
Zone 9b Dec 22nd Apr 6th Jun 20th – Dec 9th
Zone 10a Continuous Production
Zone 10b Continuous Production
Zone 11a Continuous Production
Zone 11b Continuous Production
Zone 12a Continuous Production
Zone 12b Continuous Production
Zone 13a Continuous Production
Zone 13b Continuous Production

Crop Details

TraitValue
Days to Maturity75
Sun RequirementsFull SunFull sun
Growth HabitBush
Support NeededStake
Planting DepthNormal
Germination Temp (°F)75
Min Soil Temp (°F)60
Min Night Temp (°F)50
Harden Off (days)10

Culinary Notes


Chef's Note

San Luis has thick, crisp walls that stay structured when roasted—so you get sweet, aromatic flesh instead of watery collapse. It’s mild enough for fresh chopping, but it caramelizes just enough heat to make sauces and roasted trays taste deliberately, not just peppery.

Best Uses

  • roast and char, then peel for silky-sweet slices in tacos or bowls
  • dice into bright salsas where it holds crunch and sweetness
  • stuff and bake for a meaty, crisp pepper bite
  • blend into thick, vibrant sauces where the pepper body prevents thinness

Flavor Profile

mild, sweet pepper flavor aromatic, deep-green vegetal perfume thick, crisp flesh with a clean, sweet finish gentle roast-sweetening without going smoky

Kitchen Pairings

lime garlic olive oil corn black beans queso fresco

Frequently Asked Questions


What disease is most common on Capsicum annuum (poblano-type “San Luis”) and how do I manage it?
A common issue is blossom-end rot and related calcium deficiency, often triggered by irregular watering during fruit set. Keep soil evenly moist from flowering through fruit development and avoid letting the soil swing between dry and soggy; mulch helps stabilize moisture. If you see dark, sunken ends, remove affected fruits and focus on consistent irrigation rather than adding lots of nitrogen.
How often should I water San Luis peppers during the main growing phase?
During flowering and fruiting, water when the top 1 inch of soil feels dry, aiming for consistently moist (not waterlogged) soil. Plan for about 1–2 deep waterings per week depending on heat and container size, and increase frequency during hot spells to prevent stress. Wet leaves or poor drainage can worsen Solanaceae problems, so water at the base and improve drainage if the bed stays soggy.
How can I tell when San Luis peppers are ready to harvest?
Harvest at about 75 days after transplanting when pods have reached full size and a glossy green color; for a more mature flavor, allow them to turn red on the plant. Gently lift or snip the stem—don’t yank, which can damage the plant. If fruit is still small or looks wrinkled, give it more time and maintain steady moisture.