Chili Guide: How to Grow Peppers From Seeds

February has arrived, and for those curious on how to grow peppers from seeds, that means only one thing – the sowing season is about to begin! The brave and impatient pepper planting lovers have already done it and can boast of seedlings about 10 centimeters tall with several beautiful true leaves.

In this blog on how to grow peppers from seeds, you’ll find all the important information related to pepper planting!

Difference between cotyledons and true leaves: Cotyledons are the first leaves that emerge from the seed and are also known as seed leaves (photo below). True leaves develop after the cotyledons. Hot pepper plants come from warmer regions, and besides an extremely long germination period, they also require a long period of warm weather to reach full fruiting potential.

Considering our climatic conditions, the period from mid to late February is considered optimal for sowing. For hot pepper beginners wondering how to grow peppers from seeds, we would recommend several varieties that thrive very well in our climatic conditions: Jalapeno, Hot Portugal, Aji varieties, Jamaican Hot, and Serrano.

Before reading further about the sowing process, learn more on the myths and truths of cross pollination of peppers here.

Is It Worth Sowing Pepper Seeds in January?

This is probably the most common question we get as soon as the new year begins. We recommend the period from mid to late February or later for sowing. Those who sow before the optimal period want to grow the plant as quickly as possible to yield fruit.

Pepper plants, like other crops, require a certain warm period for the development of flower buds and ultimately fruit development, as well as a certain amount of light.

For example, according to industrial standards, the currently hottest pepper in the world, the Carolina Reaper, takes about 70-90 days from germination to the first fruit.

In ideal conditions, this is possible but according to my estimate and short personal experience, I think that period takes a bit longer depending on where you are, exceeding more than 150 days.

What to Pay Attention to When Sowing Hot Peppers?

When learning how to grow peppers from seeds, you should know the process isn’t as complicated as it’s made out to be.

Like with other crops whose natural habitat isn’t in our region or climate zone, you must respect the conditions they require. The issue of germinating hot peppers is based on several facts:

• Successful germination requires temperatures between 25 and 30 (32) degrees Celsius.
• Seed germination rates range between 70% and 80% under ideal conditions. The closer you adhere to ideal conditions, the better the germination rate you’ll achieve. If the substrate temperature is around 21 degrees Celsius, the germination period is extended.
• Seed germination takes between 5 and 30 days, depending on the hot pepper variety, but even seeds of the same variety don’t all germinate simultaneously. Temperature is also a factor affecting the uniformity of hot pepper seed germination, as well as that of other plants. If the air and substrate temperature remain constant throughout the germination period (with slight variations), peppers will germinate more uniformly.
• For successful growth and yield, nighttime temperatures should not drop below 10 degrees Celsius.

A spicy tip: don’t sow hot peppers too early; you make it difficult for both yourself and the plants. If you fail to provide the conditions mentioned above, the plants will stagnate, weaken, and become susceptible to plant diseases.

Don’t let these reasons discourage you because when you grow your own pepper, it’s all worth it.

How to Prepare Hot Pepper Seeds Before Sowing?

Since hot pepper seeds have a hard outer shell, it’s good to soak them in water or a chamomile tea solution for several hours, preferably overnight, before sowing.

Some sources also suggest using a hydrogen peroxide solution, but we wouldn’t recommend it unless you’re sure of what you’re doing.

Chamomile tea also acts as a disinfectant if the seeds are infected with plant pathogens like fungi or bacteria, which can be transmitted and sustained in seeds and harm plants in the early stages of growth.

For seed disinfection, you can also use a 0.5% potassium permanganate solution for 20 minutes. This solution also softens the seed coat, resulting in faster germination. If you use this solution, rinse the seeds in clean water after treatment and dry them before sowing.

How to Grow Peppers From Seeds: Sowing

The next step is preparing the pots/containers where you’ll sow the seeds. If you’re sowing a larger number of seeds, an excellent choice is a styrofoam seedling tray, as it can accommodate around a hundred seeds.

Later, it’s easy to transplant them into larger pots or soil. You can find such containers in almost all well-equipped agricultural stores. If you’re sowing a smaller quantity of seeds, you can use any containers such as yogurt cups, small cups, or so-called Jiffy peat pellets (soak the pellets in water until they expand, then place the seeds inside, and you’ll have a ready-made germination bed that doesn’t require traditional substrate to start).

Make sure the pots have holes at the bottom so that excess water can drain out in case of heavy watering. If you’re using one pot for multiple seeds, be careful not to place them too close together as it may damage the roots during transplanting.

As for the substrate (soil), it’s best to use commercially available ones from garden centers or agricultural stores. Such soil is sterilized, meaning it shouldn’t contain weed seeds or pathogens (insects, mites, or nematodes) that could harm the peppers.

Cover the soaked seeds with just a few millimeters of soil, never more than 5 mm, as the seed may not have enough energy to push through a thicker layer of soil. Keep the pots with the sown seeds in a warm place with a temperature between 25 and 30 (32) degrees Celsius.

If you’re doing this at home, a central heating radiator is somewhat a good choice (although it’s difficult to maintain a constant temperature on it), but if the temperature is high, place something between the pot and the radiator to prevent the seeds from “cooking”.

Also, to learn how to grow peppers from seeds successfully, you should remember that to maintain the temperature, you can use spaces near a boiler, on top of a refrigerator, on a receiver, ADSL or WiFi router, cable receiver… All of these are potential places with a constant temperature, but be sure to first check if the temperature is suitable.

Once the seeds are sown, it’s best to wait for the top layer of soil to dry out before watering again; otherwise, algae and various fungi may form on the surface, which can harm the seedlings.

A good option is to water the pots immediately after sowing if the soil is not moist enough, and then wrap them in transparent kitchen foil. Wrapping them in foil will prevent moisture from escaping the pots and will maintain a higher temperature for the plants.

Germination takes between 5 and 30 days. Don’t be surprised if 2 hot pepper seedlings sprout in 5 days and then the rest only after 10 or more days. Don’t be discouraged if your peppers take longer to germinate; be persistent, keep them warm, and water them when necessary.

Light is not essential until the plant starts emerging from the soil. Once the plants sprout, it’s necessary to provide a good source of light. The sun is the best friend of plants, and one sunny day means more than several days under artificial lighting. Keep this in mind when informing yourself on how to grow peppers from seeds. You can learn more about lighting here for a more successful pepper planting. Until then, happy sowing and further cultivation of hot peppers!

For any questions on how to grow peppers from seeds, feel free to contact us at info@pepperpulse.com