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Mulato Isleño Pepper Seeds

Scientific name Capsicum annuum L.

About this variety

Mulato Isleño pepper seeds grow into upright, erect plants reaching 31–36 in, bearing brown fruit about 6 x 3 in. Heat category: Hot. It is especially suited to roasting, cooking, drying, mature brown fruit, and open-pollinated seed saving with isolation. Maturity is 90-99 Days.About Mulato IsleñoMulato Isleño is a hot chile pepper grown as Capsicum annuum L. Plants...

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Alliance of Native Seedkeepers  |  SKU: HPP31
$150 USD $200
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At a glance

The facts most gardeners need first

View the full variety record
15 minimum seeds per packet
Gardener experience

Hard

Germination difficulty

Moderate

Germination time

7–14 Days at 75–90 °F seed-zone soil temperature

  • Germination
    7–14 Daysa seed-zone soil temperature of 75–90 °F
  • Maturity
    90-99 DaysCounted from transplanting to the principal harvest stage under suitable conditions.
  • Sun
    Full sun
  • Support and spacing
    Stake recommended · space 18 in · rows 24 in
  • Growth habit
    Upright or erect · Annual · 31–36 in tall
  • Best use
    Roasting, cooking, drying, mature brown fruit, and open-pollinated seed saving with isolation
Secure checkout Details
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Triple-tested seed qualityRegular quality and germination checks support every packet.

We regularly test seed quality and germination as lots move through storage and packing. We stand behind the seed we send and want customers to contact us when a packet does not perform as reasonably expected.

1-year seed warrantyCoverage begins on the date of purchase.

When properly stored, planted, and cared for, we guarantee reasonable germination and true-to-type growth for one year from the date of purchase. Conditions outside our control—including extreme weather, pests, unsuitable storage, and gardener error—are excluded. Contact us when something is not right so we can review the situation and work toward a replacement, refund, or another fair resolution.

Non-GMO / BE seed policyWe do not buy or sell genetically engineered or bioengineered seed.

Every seed variety we sell is non-GMO.

USDA’s National Bioengineered Food Disclosure Standard defines bioengineered foods as containing detectable genetic material modified through in vitro recombinant DNA methods in ways not achievable through conventional breeding or found in nature.

  • Hybrid means parent lines were conventionally crossed; hybrid does not mean GMO.
  • Heirloom and open-pollinated describe how a variety is maintained and reproduced.
  • Organic certification is separate and is shown only when verified for the individual product.

Read how we define heirloom, hybrid, and GMO/BE seed · USDA BE Standard

Packed in Colerain, North CarolinaPrepared in our seed room for gardens across the country.

Seeds are packed and shipped from Colerain, North Carolina. Our packets use forestry-certified paper, and we use recyclable paper mailers where appropriate. AONSK is also a 1% for the Planet partner while continuing to reduce waste in packing and fulfillment.

Garden tools

Need a plan for your space?

Use the garden-fit planner and soil calculator to turn the recorded growing facts into a practical plan.

Open garden tools Uses this product’s recorded growing information. Local weather and garden conditions may vary.

Variety field guide

What to expect from Mulato Isleño Pepper Seeds

Mulato Isleño pepper seeds produce brown hot chile pepper fruit about 6 x 3 in on upright, erect plants reaching 31–36 in; maturity is 90-99 Days.

Read the complete product descriptionTraits, flavor, garden use, variety notes, and the full catalog record

Mulato Isleño pepper seeds grow into upright, erect plants reaching 31–36 in, bearing brown fruit about 6 x 3 in. Heat category: Hot. It is especially suited to roasting, cooking, drying, mature brown fruit, and open-pollinated seed saving with isolation. Maturity is 90-99 Days.

About Mulato Isleño

Mulato Isleño is a hot chile pepper grown as Capsicum annuum L. Plants have an upright, erect habit and reach 31–36 in; support is listed as stake. The principal mature or market color is Brown, with fruit described as about 6 x 3 in. Reproductive classification: Open-Pollinated (OP). Maturity: 90-99 Days. Names associated with this variety include Mulato Pepper, Pepper Seeds - Hot Pepper - Mulato Isleño.

  • Scientific name:Capsicum annuum L.
  • Life cycle:Annual
  • Planting season:Spring
  • Growth habit:Upright/Erect
  • Plant height:31–36 in
  • Sunlight:Full sun
  • Seed depth:1/4 in
  • Germination:7–14 Days at 75–90 °F
  • Spacing:18 in between plants; 24 in between rows
  • Soil:Loamy; pH 6.0–6.5
  • Water:Moderate
  • Support:Stake
  • Reproductive type:Open-Pollinated (OP)
  • Fruit:Brown; About 6 x 3 in
  • Heat:Hot; 500-2,000 SHU

History and seedkeeping context

Cornell documents Mulato Isleno as an ancho-type pepper with broad 6-by-3-inch fruit that mature from dark green to rich chocolate brown. The North American cultivar archive records Isleno as an open-pollinated mulato type with plants around 750 mm tall and resistance to potato virus Y and tobacco etch virus. Chocolate describes mature fruit color, not a guaranteed chocolate flavor.

The disease statement is limited to potato virus Y and tobacco etch virus, and the page does not broaden it into general resistance. The available sources do not establish a named person’s tribal identity. Cornell lists Mulato Isleno at 76 days, while the North American archive lists the corresponding Isleno mulato record at 80 days.

Both values fit the 70–89 Days category.

Fruit, flavor, and kitchen use

Use green fruit roasted or stuffed, or allow them to mature brown for sauces, moles, stews, marinades, and drying. Toast dried pods carefully to develop aroma without burning them. Moderately pungent mulato/ancho type according to the cultivar archive; brown describes mature fruit color, not a chocolate flavor claim. Pungency varies with genetics, temperature, water stress, fruit position, and ripeness; any heat figure is a range, not a promise for every pod. Mulato Isleño is especially useful for roasting, cooking, drying, mature brown fruit, and open-pollinated seed saving with isolation. Flavor and eating quality are described as moderately pungent mulato/ancho type according to the cultivar archive; brown describes mature fruit color, not a chocolate flavor claim. Pungency varies with genetics, temperature, water stress, fruit position, and ripeness; any heat figure is a. Heat classification: Hot; listed range: 500-2,000 SHU. Pungency can shift with genetics, weather, water stress, and ripeness.

How to grow Mulato Isleño

Start Mulato Isleño indoors about 8 to 10 weeks before the last expected frost. Sow 1/4 in deep in a warm, evenly moist seed-starting mix; expect 7–14 Days near 75–90 °F. Provide strong light as soon as seedlings emerge, pot up before roots become crowded, and harden plants gradually before transplanting after nights are reliably warm.

Plant in full sun with loamy soil near pH 6.0–6.5. Space plants 18 in apart and rows 24 in apart. Maintain moderate moisture, mulch after the soil warms, and avoid excessive nitrogen. Install stake early where the upright, erect plant or fruit load warrants it. Mature height is 31–36 in.

Season care

• Warmth matters most during germination; keep Mulato Isleño seed warm without leaving the medium saturated. • Harden seedlings gradually and wait for warm nights before transplanting, because cold soil and wind can stall peppers for weeks. • Install stake before branches carry a heavy crop, and keep moisture even while fruit is setting. • Harvest at the color stage suited to the recipe, but leave fruit fully mature on selected plants when saving seed. • Use 90-99 Days as a planning range rather than a guaranteed calendar date; weather and transplant stress can shift first harvest.

Harvest and maturity

90-99 Days from transplant to first representative harvest; the same value is used in every description. Peppers can often be used at an immature green or transitional color, but fully ripe color is required for mature seed.

Saving seed

Peppers are largely self-pollinating but insect movement can produce crosses. To save Mulato Isleño true to type, grow several healthy representative plants, isolate them from compatible pepper varieties or use blossom bags or cages, and remove clear off-types before flowering. Allow selected fruit to reach full biological color, handle hot fruit with gloves, remove the seed, dry it in a thin labeled layer until fully hard and dry, then store it cool, dark, and dry. Keep the harvest year, source, isolation method, and selection notes with the lot.

Common questions

When is Mulato Isleño ready?

Plan around 90-99 Days. The listed range is a planning guide, and weather, transplant stress, and harvest stage can shift the actual date.

How long does germination take?

Expect 7–14 Days near 75–90 °F. Cooler media, excess water, old seed, or uneven moisture can delay emergence.

How large does it grow?

Expect about 31–36 in. Growth habit: Upright/Erect. Support: Stake.

How is it used?

Roasting, cooking, drying, mature brown fruit, and open-pollinated seed saving with isolation

Can I save seed?

Peppers are largely self-pollinating but insect movement can produce crosses.

Garden toolsOpen the garden-fit planner, planting-window questions, or soil calculator only when useful

Uses this product’s recorded growing information. Local weather, soil, and garden conditions may vary.

Garden-fit planning for this variety

Will Mulato Isleño Pepper Seeds fit your garden?

Check warmth, season length, growing space, harvest stage, and intended kitchen use.

Questions for this pepper seed
Seed-starting fit and patience
Recorded product profileSome experience is helpfulModerate or temperature-sensitiveRead why
Soil test, pH, drainage, and amendment calculator Have a laboratory soil report? Enter pH, nutrients, texture, bed size, and site observations here. Open soil tools
Recorded soil typeLoamy
Recorded pH range6.0–6.5
Water needsModerate
LightFull sun

Soil Readiness

for Pepper Plants (Capsicum spp.)

Where to get a soil test

Best option: your state’s Cooperative Extension soil testing lab.

Tip: Arid/alkaline regions (e.g., AZ, NM, UT, parts of CA) often use Olsen (bicarbonate) for phosphorus.
Adjusts P (ppm) target & interpretation.
Target 6.2–6.8
Ideal 4–8%
Target 40–60 ppm (Mehlich-3)
Target 150–200 ppm
Ok ≥ 1000 ppm
Ok ≥ 120 ppm
For pH adjustment size
For “shopping list” amounts
Interprets P by extractant; assumes ppm. Results are approximate.
Enter at least one value above, then Calculate.

Full growing record

Complete growing and seedkeeping record

Starting and plantingSeed preparation, sowing, germination, transplanting, spacing, and early establishment
Start Mulato Isleño indoors about 8 to 10 weeks before the last expected frost. Sow 1/4 in deep in a warm, evenly moist seed-starting mix; expect 7–14 Days near 75–90 °F. Provide strong light as soon as seedlings emerge, pot up before roots become crowded, and harden plants gradually before transplanting after nights are reliably warm.

Plant in full sun with loamy soil near pH 6.0–6.5. Space plants 18 in apart and rows 24 in apart. Maintain moderate moisture, mulch after the soil warms, and avoid excessive nitrogen. Install stake early where the upright, erect plant or fruit load warrants it. Mature height is 31–36 in.
Season-long growing guideWater, fertility, support, weather response, pollination, containers, and care through maturity
Start Mulato Isleño indoors about 8 to 10 weeks before the last expected frost. Sow 1/4 in deep in a warm, evenly moist seed-starting mix; expect 7–14 Days near 75–90 °F. Provide strong light as soon as seedlings emerge, pot up before roots become crowded, and harden plants gradually before transplanting after nights are reliably warm.

Plant in full sun with loamy soil near pH 6.0–6.5. Space plants 18 in apart and rows 24 in apart. Maintain moderate moisture, mulch after the soil warms, and avoid excessive nitrogen. Install stake early where the upright, erect plant or fruit load warrants it. Mature height is 31–36 in.
Harvest, storage, and usesRecognizing maturity, harvesting cleanly, handling and storage, kitchen uses, and garden roles

Harvest and storage

Mulato Isleño is listed at 90-99 Days from transplanting to the principal harvest stage under suitable conditions. Use green fruit roasted or stuffed, or allow them to mature brown for sauces, moles, stews, marinades, and drying. Toast dried pods carefully to develop aroma without burning them. Moderately pungent mulato/ancho type according to the cultivar archive; brown describes mature fruit color, not a chocolate flavor claim. Pungency varies with genetics, temperature, water stress, fruit position, and ripeness; any heat figure is a range, not a promise for every pod. Mulato Isleño is especially useful for roasting, cooking, drying, mature brown fruit, and open-pollinated seed saving with isolation. Flavor and eating quality are described as moderately pungent mulato/ancho type according to the cultivar archive; brown describes mature fruit color, not a chocolate flavor claim. Pungency varies with genetics, temperature, water stress, fruit position, and ripeness; any heat figure is a. Heat classification: Hot; listed range: 500-2,000 SHU. Pungency can shift with genetics, weather, water stress, and ripeness. Peppers are largely self-pollinating but insect movement can produce crosses. To save Mulato Isleño true to type, grow several healthy representative plants, isolate them from compatible pepper varieties or use blossom bags or cages, and remove clear off-types before flowering. Allow selected fruit to reach full biological color, handle hot fruit with gloves, remove the seed, dry it in a thin labeled layer until fully hard and dry, then store it cool, dark, and dry. Keep the harvest year, source, isolation method, and selection notes with the lot.

Uses and garden roles

Use green fruit roasted or stuffed, or allow them to mature brown for sauces, moles, stews, marinades, and drying. Toast dried pods carefully to develop aroma without burning them. Moderately pungent mulato/ancho type according to the cultivar archive; brown describes mature fruit color, not a chocolate flavor claim. Pungency varies with genetics, temperature, water stress, fruit position, and ripeness; any heat figure is a range, not a promise for every pod. Mulato Isleño is especially useful for roasting, cooking, drying, mature brown fruit, and open-pollinated seed saving with isolation. Flavor and eating quality are described as moderately pungent mulato/ancho type according to the cultivar archive; brown describes mature fruit color, not a chocolate flavor claim. Pungency varies with genetics, temperature, water stress, fruit position, and ripeness; any heat figure is a. Heat classification: Hot; listed range: 500-2,000 SHU. Pungency can shift with genetics, weather, water stress, and ripeness.
Seed savingSelection, pollination, isolation, full maturity, cleaning, drying, labeling, and storage
Peppers are largely self-pollinating but insect movement can produce crosses. To save Mulato Isleño true to type, grow several healthy representative plants, isolate them from compatible pepper varieties or use blossom bags or cages, and remove clear off-types before flowering. Allow selected fruit to reach full biological color, handle hot fruit with gloves, remove the seed, dry it in a thin labeled layer until fully hard and dry, then store it cool, dark, and dry. Keep the harvest year, source, isolation method, and selection notes with the lot.
Pests, diseases, and troubleshootingPrevention, diagnosis, environmental disorders, common damage, and first-response checks
Mulato Isleño can be affected by aphids, flea beetles, mites, hornworms, bacterial leaf spot, Phytophthora root and crown rot, sunscald, blossom-end rot, and fruit cracking. Use clean seed-starting supplies, rotate away from solanaceous crops, avoid overhead irrigation late in the day, maintain even soil moisture, and inspect the undersides of leaves. Similar symptoms can have different causes, so compare plants of the same age and use local Cooperative Extension or diagnostic support before applying a treatment.
Frequently asked questionsDecision-focused answers that supplement the detailed guides above
Frequently Asked Questions - Mulato Isleño

When is Mulato Isleño ready?
Plan around 90-99 Days. The listed range is a planning guide, and weather, transplant stress, and harvest stage can shift the actual date.

How long does germination take?
Expect 7–14 Days near 75–90 °F. Cooler media, excess water, old seed, or uneven moisture can delay emergence.

How large does it grow?
Expect about 31–36 in. Growth habit: Upright/Erect. Support: Stake.

How is it used?
Roasting, cooking, drying, mature brown fruit, and open-pollinated seed saving with isolation

Can I save seed?
Peppers are largely self-pollinating but insect movement can produce crosses.
History and provenanceBotanical identity, cultivar history, regional or cultural context, uncertainty, and source records

Scientific name: Capsicum annuum L.

Common name: Mulato Pepper

Cultivar or variety: Mulato Isleño

Cornell documents Mulato Isleno as an ancho-type pepper with broad 6-by-3-inch fruit that mature from dark green to rich chocolate brown. The North American cultivar archive records Isleno as an open-pollinated mulato type with plants around 750 mm tall and resistance to potato virus Y and tobacco etch virus. Chocolate describes mature fruit color, not a guaranteed chocolate flavor. The disease statement is limited to potato virus Y and tobacco etch virus, and the page does not broaden it into general resistance. The available sources do not establish a named person’s tribal identity. Cornell lists Mulato Isleno at 76 days, while the North American archive lists the corresponding Isleno mulato record at 80 days. Both values fit the 70–89 Days category.

References

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Customer experience

Reviews for Mulato Isleño Pepper Seeds

Customer Reviews

Based on 2 reviews
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Anonymous (United States)

The seeds germinated at about 60% and nearly all seedlings grew to healthy plants ready to transplant.
Hoping I actually got Mulatos this time, as several tries from other catalogs have sent anything but.

D
Dulce Anguiano (United States)

First I received less seeds than what was listed, which customer service was quick to resolve. But then only half the seeds germinated and to my surprise what a majority of what grew were shishito peppers and not these, only 1 mulato isleno plant grew

Hey there! I believe we have exchanged a number of emails and addressed the reasons for these issues and how we have resolved them. Feel free to email us again if there is anything else you need!

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