# Mattahorn

Also known as Mattahorn F4.
Species: Capsicum annuum.

Mattahorn is a Capsicum annuum f2+ from United States. Capsi has not yet documented heat for this variety. Used for Pickling, drying, fresh slices.

## Heritage

F2+

Mattahorn is an F2+ of Mattapeño and Thunder Mountain Longhorn, still splitting and not yet a finished line.

Credit: Matt Ohlendorf · 2023

Parents:
- [Mattapeño](https://web.thecapsi.app/pepper/mattapeno)
- [Thunder Mountain Longhorn](https://web.thecapsi.app/pepper/thunder-mountain-longhorn)

Matt's shop and his September 2023 Instagram both name Mattapeño × Thunder Mountain Longhorn. He showed the line as F3 that year and sells F4 seed. Secret Seed Cartel repeats the pairing and says the line is still unstable.

## Page sources

- [Breeder listing: Mattapeño × Thunder Mountain Longhorn, sold as F4.](https://www.mattspeppers.com/product-page/mattahorn-f4-1)
- [Matt's Peppers shop listing for Mattahorn F4.](https://www.mattspeppers.com/)
- [24 September 2023 announcement naming Mattahorn as F3.](https://www.instagram.com/p/CxlNNqfudTI/)
- [Grower thread on F4 seedlings that names the same Mattapeño × Thunder Mountain Longhorn cross.](https://www.reddit.com/r/HotPeppers/comments/1jczms4/mattahorn_f4_at_5_weeks/)
- [Vendor listing repeating the pairing and noting the F4 line is still stabilizing.](https://www.secretseedcartel.com/products/mattahorn-pepper-seeds)

## FAQ
### How hot is Mattahorn?

Capsi has not yet documented heat for this variety. Capsi uses a sourced range and a trust tier, not a single marketing number. How we verify heat: https://web.thecapsi.app/learn/heat-and-capsaicin/how-we-measure-heat

### What does Mattahorn taste like?

Capsi does not have that recorded yet.

### How do I grow Mattahorn?

Mattahorn: about 90 days to maturity, temperate climate, full sun, hardiness zones 9-11.

### What can I substitute for Mattahorn?

Thunder Mountain Longhorn, Shuhorn Longhorn

Page: https://web.thecapsi.app/pepper/mattahorn
Catalog: https://web.thecapsi.app/data