Mulato Isleno Hot Pepper Seeds


Mulato Isleno is a classic Mexican variety that's been used in kitchens for centuries. It ranks relatively low on the Scoville scale, registering at 2,500-3,000 units. However, it does not lack in depth of flavour. Depending on the individual’s palate, these peppers have been described as presenting hints of chocolate, raisins, licorice, tobacco, cherry and earthy tones. What will you taste?

Growing up to a meter tall, plants will produce loads of 6-10 cm long fruits. They resemble the shape of Poblano peppers, but with a sweeter taste. Taking up to 95 days to reach maturity, Mulato Isleno will reward the patient and pious pepper gardener. Ripening from a dark green to a rich cocoa colour, the signature colour of the pepper indicates its complex, sweet flavour. 

To tap into the wide spectrum of flavours, dry the fruits and make them into a spectacular mole sauce. Otherwise, they work just as well roasted, stuffed or tossed into a salsa. Mulato Isleno is the ideal pepper to make the classic Mexican dish chile relleno. Pepper aficionados will go mad for the versatility and sophisticated taste of this excellent heirloom. 


- Latin Name: Capsicum
- Life Cycle: Perennial, usually grown as an annual
- Days to Maturity: 95
- Planting Depth: 5 mm
- Plant Spacing: 35-45 cm
- Row Spacing: 60-90 cm
- Growth Habit: 75-90 cm tall


Peppers adore the heat and sun and will produce like mad during sweltering summers and mild falls. So, it should come as no surprise that they are very tender and can be quite finicky if faced with cold temperatures. Peppers come in a wide variety of shapes and colors and range from very sweet to extremely hot. You’re sure to find a pepper well suited to your palate.

Start seeds indoors 8-10 weeks ahead of the last frost date. Peppers require consistent heat in order to sprout. Keep soil at 24-32 degrees to ensure proper germination. Use a heating mat to achieve these temperatures. Plant seeds in flats or pots 10 cm deep. Germination should occur in two weeks with an optimal environment but can take up to five.

Set seedlings in a greenhouse, your sunniest windowsill or under a grow light for long hours to provide the necessary light exposure. Re-pot any young plants that begin to stretch, like tomatoes, up to their bottom leaf. This will stimulate more root growth and result in stockier plants.

Gradually harden off peppers for two weeks to prepare for transplanting. Soil should be at least 16°C (warmer is ideal) when preparing to plant outside. Choose the sunniest spot in your garden and prepare a fertile, well-drained bed with plenty of compost. Space plants 45-60 cm apart in the garden.

Give peppers a regular feeding with a liquid fertilizer high in potassium to encourage flower setting and fruit production. Give your plants a good soaking once a week, but allow them a dry period in between waterings. Pepper plants do well with staking, as they can become quite top heavy when loaded with fruit. Pick often to encourage more flower production.

Pepper plants are a sight to behold in the fall. A row or field can resemble a fireworks display, boasting vivid shades of green, yellow, orange, red and purple.


- Peppers have been cultivated in South America for thousands of years before Christopher Columbus brought the plant back to Europe in the early 1500s. Over time, pepper plants have been bred for heat, size, yield, and colour.

- Peppers are perennial in tropical areas, but in colder climates, they are grown as annuals.

- Pepper seeds will remain viable for 3 years if stored in a cool, dark place, ideally between 4 and 10⁰C. After that, the germination rate may start to go down.


You know that a lush, fruitful garden needs good soil, frequent watering, and sunlight to grow, but it’s the seeds that really make the harvest.

Picked and bagged for 2024 the vast majority of our seeds have germination rates of over 85%. The seeds are all-natural, non-GMO, non-hybrid, untreated, and open-pollinated for seed saving.

We have put a lot of thoughts into the design and packaging of our seed packets. Our seeds are all carefully packed in food grade kraft paper/aluminium zipper lock bags, and then are shipped in eco-friendly padded mailers.

We heat-seal each of our seed packet for even more protection from moisture, odour and light, allowing you to store your seeds for up to 3x longer than paper or plastic. Plant them all, germinate some indoors, save some for next season - it’s up to you!