Mattapeno F3 Mutant

$5.00

Packet: 10 seeds per packet

Quantity & buying options

Grow Mattapeno F3 Mutant for a pepper trial that can lead to small batches of sauce, salsa or dried seasoning. It is listed as an F3 selection: expect variation rather than identical plants and pods. Assess the heat of each...

CASA VERDE · HEAT PROFILE

Medium

  1. Sweet
  2. Mild
  3. Medium — this variety
  4. Hot
  5. Super hot

Scoville range awaiting confirmation.

Understanding the heat

A diamond marks the midpoint of a listed range, or the listed value when only one number is given. An arrow marks a stated limit. These are variety guides, not measurements of our seed lot. This guide uses unequal numerical bands: sweet 0; mild up to 10,000; medium 10,000–50,000; hot 50,000–800,000; super hot from 800,000 SHU (display capped at 3 million). Heat varies between fruits and with growing conditions.

No numeric marker is shown without a sufficiently clear range. For bundles, the highlighted categories refer to the different varieties.

A Scoville range has not been listed for this variety.

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Growing guides
Ships from Québec
Packet
10 seeds per packet
Season
2026
Good for

CASA VERDE · GROWER’S NOTES

Get to know your pepper.

Flavour, growing and harvest—the details that help you choose.
Experimental selection · 10 seeds per packet

Mattapeno F3 Mutant Pepper Seeds

Grow Mattapeno F3 Mutant for a pepper trial that can lead to small batches of sauce, salsa or dried seasoning. It is listed as an F3 selection: expect variation rather than identical plants and pods. Assess the heat of each plant’s harvest before deciding how much to use.

PurposeExperimental
Seed lineListed as F3
Heat guideMedium; exact SHU unverified
Packet10 seeds

Why grow it?

This selection suits growers who enjoy comparing plants and cooking with the results. Casa Verde’s earlier growing notes describe an aromatic, chinense-like flavour. That is a tasting comparison, not a species identification or a flavour guarantee for every plant.

At a glance

Species listingCapsicum annuum
SelectionVariable; uniform traits not guaranteed
KitchenSmall-batch sauces and seasoning

In the kitchen

  • Sauce: Cook a small portion with tomato or vegetables, then adjust the amount to suit the harvest.
  • Salsa: Finely chop a small amount and add gradually after assessing its heat.
  • Dry seasoning: Dry sound pods thoroughly for flakes or powder; keep batches from different plants separate if you want to compare them.

Growing and harvest

  • Start indoors: Give seedlings warmth, bright light and space to develop.
  • Transplant: Harden off gradually and plant out after frost risk, once the soil has warmed.
  • Growing position: Use well-drained soil and consistent moisture. A warm, sheltered spot can help extend the season.

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Questions about Mattapeno F3 Mutant

What does F3 mean here?

F3 is the generation stated in this listing. It does not guarantee a fixed appearance or heat level. Treat this as an experimental selection; the exact pedigree of Casa Verde’s lot remains unconfirmed.

Is this the original Mattapeño jalapeño?

Do not assume the names are interchangeable. Matt’s Peppers describes an original variegated Mattapeño and a separate Mattapeño × Mutant cross. We have not established an exact source match for this lot.

Will every plant have white foliage and striped fruit?

No. Variation is part of the reason for the Experimental label. The product photos show examples, not a promise that every plant will look the same.

How hot is it?

Medium is our existing catalogue guide. There is no verified Scoville range for this lot, so we do not borrow a number from the original Mattapeño.

Seed note

This listing does not certify a stable heirloom or a particular breeder’s seed lot. Record the traits of individual plants if you save seed. Wear gloves when preparing hot peppers.

Cook your harvest

Use your harvest in these recipes. Check the variety notes and substitutions in each recipe.

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