Chili Growing Annual Calendar: January to December

Growing chili peppers involves exciting tasks from January to December – and true growers fulfill these tasks gladly with full dedication and passion. The beautiful thing about chili growing is: it's never boring. While others abandon their gardens in winter, the first preparations for the next season are already running at full speed.

In this article, we have written down a detailed schedule of when to complete which tasks related to chili growing. Anyone who wants to harvest many hot chilis in late summer should start planning in the previous year. But let's go in order – starting in January.

Table of Contents

January: Sowing Super-Hots

For truly hot chilis, you should tackle your chili cultivation early in the new year. This is the critical point: some particularly hot varieties need 270 days or more from sowing to harvest. If you want harvest-ready Carolina Reapers or Bhut Jolokias in September, you need to start now.

The First Steps

Seeds of Habaneros, Rocotos, Bhut Jolokia, Moruga Scorpion, and Carolina Reaper are best planted in early January. For early-ripening varieties like Early Jalapeño, you can take more time – they can still be sown in March.

The best procedure: Soak chili seeds in the first week of January (1–2 days in lukewarm water or chamomile tea). After soaking, the pre-treated seeds move into an indoor greenhouse with moist, warm climate (25–27 °C).

Growing Medium and Materials

As growing medium, we like to use coco coir pellets – they have proven effective for growing chili plants. They store moisture well, are airy enough, and biodegradable. High-quality seed starting soil also works as an alternative.

Preparation in the previous year: In the previous year, you ideally already selected chili varieties, ordered seeds from the chili shop, and cleaned your equipment (old pots, greenhouse).

First seedlings show their tender green in mid-January – the chili season is running! Clean your flower pots from last year now – they'll be needed again soon.

February: Caring for Seedlings and Light

The days in February are still short, and your little chili seedlings urgently need sufficient light. Without supplemental light, they quickly become "leggy" – meaning they grow long and thin instead of strong and bushy.

Artificial Light is Essential

If you don't have a bright south-facing window, reach for a plant light now. At least 14–16 hours of light per day is ideal to keep seedlings compact and strong. LED grow lights are energy-efficient and work excellently.

Temperature in the growing area should be constant between 22 and 28 °C. Higher isn't better – it just wastes energy.

Water Sparingly

Water sparingly – waterlogging is the biggest enemy of young chili plants. The soil should be moist, not wet. A good rule of thumb: when the soil surface appears slightly dry, it's time to water.

If you haven't sown in January yet, catch up now – but for Habaneros and Co., it's getting tight.

March: Repotting and First Fertilization

Your seedlings have now developed their first true leaf pair – time for the first repotting into slightly larger pots. Switch from small seed starting pots to 8–10cm pots.

The Right Substrate and Careful Fertilization

Use a low-nutrient seed starting substrate – not regular potting soil right away, which is too nutrient-rich. Chili plants react sensitively to too much fertilizer; less is more.

Only now begin carefully with weak fertilization – about a quarter of the recommended dosage. A special chili or pepper fertilizer is ideal, but regular universal fertilizer also works.

Additional Sowings

In March, you can also begin sowing fast-ripening varieties like Cayenne or Jalapeño if you haven't done so yet. A wide variety of cultivars makes the season truly exciting and guarantees you continuously different harvest experiences from June to October.

April: Hardening Off – Acclimatization

Now begins the so-called hardening off. Your chili plants, which have grown up in the warm, protected apartment, go outside for the first time briefly – initially only for a few hours in mild weather.

Gradual Process

Avoid direct midday sun and wind – the plants aren't used to it and would otherwise get sunburn or wind damage. Start with a shady, wind-protected location and short duration (1–2 hours).

Increase outdoor time daily a little bit. After two to three weeks, your plants are ready for permanent outdoor stay – provided no more night frosts threaten.

For details, see also: Hardening Off Chili Plants: 7-Day Guide

May: Transplanting After the Ice Saints

From mid-May – after the Ice Saints (May 13–15) – it's time. Now your chilis can permanently go outside on balcony, terrace, or into the bed. Before the Ice Saints, sudden frosts can destroy entire plants – hence the waiting period.

Location and First Outdoor Fertilization

A sunny, wind-protected spot is ideal – at least 6–8 hours of direct sun daily. In containers or directly in the ground – both work well, depending on your conditions.

Now you also increase fertilization somewhat. A good potassium-rich fertilizer promotes flower set and fruit development. Water regularly, but let the soil dry slightly between waterings.

June: Flowering and Pollination

Your chili plants are flowering now – and that's a beautiful moment in the season. Small white (sometimes purple) flowers appear on the plants. Bees and other insects handle pollination outdoors.

Manual Pollination

In greenhouses or on balconies, you can help with a soft brush or gentle shaking of the plant. Simply run a brush over the open flowers – this simulates the work of bees and often leads to better fruit set.

Pest Control

Also watch now for aphids and spider mites – especially during dry and hot conditions. Intervene early before an infestation spreads. Neem oil or insecticidal soap help well with initial infestations – but pay attention to proper dosage and application.

July: Peak Season – Maximum Growth

July is the month when your chilis really take off. Lots of sun, warm temperatures, stable conditions – this is exactly what Capsicum loves most. Growth is now at maximum.

Intensive Watering

Water daily in heat, sometimes even twice a day. Container plants dry out quickly and suffer from drought stress. Mulching (bark mulch or straw mulch around plants) helps retain moisture.

First Fruits

First green fruits are already hanging on the plants. Hot varieties like Habanero or Bhut Jolokia still need patience – they ripen slowly, but then all the more intensively. You can already dream about the various chili sauces you'll make from them later!

August: First Harvests and Processing

Now you harvest the first ripe fruits. Early-ripening varieties like Early Jalapeño or Cayenne are already fully colored. Harvest regularly – this stimulates the plant to continue fruit formation and prevents too much energy from going into ripening individual fruits.

Hotter Varieties Follow

Hotter varieties are close to ripeness – just a bit more patience. Anyone wanting to experiment with hot sauces now will find plenty of harvest in August for first attempts.

Fresh chilis can also be wonderfully dried (air-dried or in a dehydrator), frozen, or processed into powder. August is the perfect month for first experiments.

September: Late Harvest and Hot Sauce Production

In September, the harvest runs at full speed. Habaneros, Carolina Reaper, and other slow-ripening varieties are finally ready now. Make optimal use of the last warm days – nights are getting cooler.

Frost Protection

Check weather forecasts and protect your plants at temperatures below 10 °C. Frost cloth or simply bringing them into a cool room helps secure the harvest.

Hot Sauce and Processing

Now is also the best time to dry chilis, process them into chili sauces, or freeze them. A good hot sauce takes time – so get to those recipes! Fresh harvest processed with current temperature and humidity in the kitchen always tastes better than stored goods.

October: Preparing for Overwintering

Anyone wanting to overwinter their chili plants prepares for this now. It's worth it: overwintered plants produce earlier and more fruits the next year.

Pruning and Inspection

Cut plants back to about one-third – remove all leaves and check for pests, especially spider mites love to come unnoticed into the house. Thorough inspection and possible treatment saves you problems later.

Prepare Storage Area

A cool, bright room with temperatures between 10 and 15 °C is ideal for overwintering. Not warmer! A basement with windows or an unheated veranda work well. The plants still need a bit of light so they don't become completely bare.

November: Dormant Phase – Less Water

Your chili plants are now in the dormant phase. This is natural – they're mentally preparing for winter. Water very little – once a week or every ten days is completely sufficient.

No Fertilizer

No more fertilizing now. The plant needs this dormant phase to start powerfully again next year. Too much water and fertilizer in this phase only promote mold and weak shoots.

Regular Monitoring

Still check your plants regularly for pests. Aphids and spider mites can be active even in winter if it's too warm. Quick treatment prevents them from multiplying.

December: Planning for the New Year

December is the perfect time for planning. The hottest phase is over, your plants are resting, and now you can calmly prepare for next year.

Seed Selection and Ordering

Which varieties do you want to grow next year? Order your chili seeds now so you can start immediately in January. The best varieties are often sold out again by January – so be quick!

Material Preparation

Clean your equipment, pots, and greenhouses – the new year will start again quickly. Clean containers without old soil residue minimize fungal infestations and pest problems.

Browse through seed lists, read growing reports, and dream of new varieties! December is also perfect for reflecting on your experiences from last year: What worked well? Which varieties do you want to emphasize? Where did you have problems?

Frequently Asked Questions About the Annual Calendar

When do I need to start sowing?

For Super-Hots (Carolina Reaper, Bhut Jolokia): early January. For normal varieties (Habanero, Jalapeño): January to March. The rule of thumb: about 270 days from sowing to harvest for hot varieties, 150–200 days for mild ones.

What happens if I start later?

Later sowing = later harvest. Sowing in March instead of January means harvest in October/November instead of August/September. Or: bought young plants in May = first fruits in August/September. That works too!

How long does germination take?

Soaked seeds germinate at 25–27 °C in 10–20 days. Without soaking, it takes 2–4 weeks. Patience pays off!

When exactly are the Ice Saints?

May 13–15 in Germany (Mamertus, Pankratius, Servatius). After these days, night frost is very unlikely. Some gardeners wait until the end of May to be on the safe side.

Can I overwinter the plant?

Yes, especially perennial varieties like Habanero, Rocoto, Bhut Jolokia. Simple Capsicum annuum is usually not worth it. Pruning, cool storage (10–15 °C), little water. In spring, put them out again and they'll sprout anew!

What do I do with unripe fruits in October?

Option 1: Bring plants inside and ripen under artificial light. Option 2: Harvest green chilis and process them (sauces, paste, pickles). Option 3: Let them ripen on the windowsill.

How often do I fertilize during the season?

March–April: sparingly (1x per week, half dosage). May–August: regularly (1–2x per week, full dosage). September: reduce. October–February: Zero fertilizer.

Can I mix varieties in the same pot?

No, better not. Different varieties have different water and nutrient requirements. Also, fast-growing varieties can suppress weaker ones. One pot per plant is cleaner.

About the Author

Fabian aka Pikantista

Fabian is the founder of Pikantista and has been bringing Europe's hottest chili sauces to market for over a decade. With his years of experience from projects like Pika Pika Chili Compositions and Chili Mafia, he knows every month of the year – the ideal timing for every task. For him, the annual calendar isn't just a plan, but a dance with nature: January is hope, August is joy, December is planning. Follow him on Instagram for monthly growing updates and seasonal tips throughout the year!