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Almanac Planting Poblano Hot Pepper (Capsicum annuum). Image of two harvested peppers side by side.

Poblano Pepper

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Capsicum annuum

Overview

Uses: Poblano pepper production. Dried poblano peppers are called "ancho chilies".

Benefits: Easy to grow. 4" fruit. High yields. 1,000 – 2,000 SHU 

Zones: 3 - 12 

Sun: Full 

Life Cycle: Annual 

Mature Height: 24"

Mature Width: 18"

Bloom Season: Summer

Summary

Our Poblano Hot Pepper Plants are often referred to as "Ancho Pepper Plants" or "Ancho Chili Plants" due to the fact that ancho chilis are simply a dried version of the fresh poblano pepper. 

Poblano peppers are a some of the most popular pepper plants in Mexico, and for good reason! They're hot, but not too hotclocking in around 1000-2000 SHU (Scoville Heat Units) thus making them perfect for a wide variety of culinary applications. 

Expect fruits in somewhat of a pod shape about 4" long and 3" wide. They're ready to harvest when they transition from their immature purple hue into a deep green. Left alone, the deep green color will eventually transition into a red. Poblano peppers will be their spiciest if left on the vine long enough to turn red. 

Care

Poblano Pepper Plant Care

Provide at least 6 hours of full sun daily. 8+ hours is better. 

Flower development will occur mid to late summer. Some flowers may be pinched to encourage a bushy plant. Flowers will eventually turn into peppers. 

Water regularly after planting or repotting, keeping soil moist but not wet until the plant is established. We suggest attempting to make sure your poblano plant gets about 1" of water every week during periods of growth.

Poblano pepper plants that get lots of sun and not a lot of water typically produce hotter peppers. Stress, such as not a lot of water, causes the production of capsaicin which results in a higher SHU rating. 

This plant is an excellent companion for cucumber!

Plant 36" apart. 

Planting with tomatoes will repel many pests and attract beneficial insects to your tomato plants.

Do not allow prolonged exposure to temperatures below 40°F. Will die if exposed to frost. Often stunted by any temperatures below 60°F. Does best in temperatures above 65°F.

Size

Size of Poblano Pepper Plants That You Ship

We ship our Poblano Pepper Plants in 4" grow pots. Each plant will be appropriately sized for their pot. We suggest waiting at least 2 days after you receive your plant before you transplant it. This will give it time to recuperate from shipping. 

Size of Poblano Pepper Plant When Fully Grown

Poblano pepper plant grows to a size of around 24" tall and 18" wide. 

Additional Information

Botanical Name of Poblano Pepper

  • Capsicum annuum

Toxicity and Risks of Poblano Peppers

Poblano Pepper Plants are considered toxic due to the fact that they contain capsaicin. They don't contain nearly as much capsaicin as some other varieties of peppers, so they're not as much of a threat as others. 

Capsaicin is the chemical in pepper plants that give them their spicy flavor. Too much capsaicin may cause such things as stomach upset, vomiting, diarrhea, and (in severe cases) death. 

Capsaicin is also very irritating to, and may damage the eyes and skin. Use caution when handling peppers or touching any part of the plant. Rubber gloves and eye protection may be used as a protectionary measure. 

Additionally, they're members of the nightshade family, and produce toxic alkaloids.

These toxic alkaloids are most present in the unripe fruit, the stem, and the leaves of a pepper plant.

These parts of the plant may cause injury to a person or pet if consumed in high doses.