Start Your Own Tomatoes and Peppers from Seed in January — Native Nurseries (2024)

A few years ago, I planted pepper seeds for the first time to make my own paprika. This small start sent me on a journey from my bathroom window to a small growing tent in my closet and eventually to some of the best and most interesting paprika I have ever tasted.

Peppers and tomatoes are both members of the nightshade family. In our area they have similar growing habits and time frames for planting. The timing of seed planting is one of the most important aspects of growing vegetables. Other considerations include available equipment, quantity of plants needed, and the planting and caring of the seeds and seedlings.

When choosing a pepper or tomato to grow from seed, consider how you are planning to use the produce. For instance, if you enjoy pasta with red sauce, a determinate Roma-style tomato might be the best choice. For hot sauces, I have enjoyed some of the super-hot peppers, although one plant is often enough! Sharing or exchanging your extra plants with friends is often an option to gain a diversity of varieties after you have too many plants. If growing a whole seed packet of one variety, I usually have a project in mind that requires lots of the same variety of pepper or tomato.

The equipment needed for starting peppers and tomatoes consists of a heat mat, grow light, containers to start the seeds in, watering can, fertilizer and growing medium. Tomatoes do not need as much heat to germinate as a lot of the peppers. It is possible to grow both in a south facing window or greenhouse but without sufficient light and heat the peppers will be very slow to grow. Peppers prefer to be germinated between 70-90 degrees Fahrenheit, while tomatoes prefer 65-85 degrees. My house is usually under 70 in the winter, so I run a heat mat to keep the soil temperature closer to 80 degrees. This is the same with the lighting situation, which requires me to use a grow light to get sufficient light to the seedlings.

You can use a good quality potting soil or seed starting mix as your growing medium. Your container could be a nursery flat with individual cells or small 2-inch pots. Here is my recipe for sowing the seed:

1. Fill the seed starting flat or individual pots with seed starter mix

2. Place 3-4 seeds per cell or pot

3. Gently sprinkle worm castings to cover seeds (or use more of potting medium)

4. Press down to achieve good seed to soil contact

5. Water lightly using a watering can with a fine shower or water from the bottom to keep disturbance to a minimum.

The seeds will usually germinate in 5-to-10-days, but some peppers in low temperatures can take a few weeks so don’t toss empty containers immediately. During this time, keep the top portion of the container moist. During germination the cotyledon will emerge, followed by the first set of true leaves. Make sure the seeds and plants are getting plenty of light, 14-16 hours. A window will only get a few hours when compared to a grow light. Select the strongest seedling in each cell or pot and cut out the others. At this point the plant can be fertilized with Neptune’s Harvest or other fish/seaweed product which is gentle and promotes a great burst of growth. Continue to water thoroughly and fertilizer once a week.

The best time to plant both the seeds of peppers and tomatoes is in January. Tomato seedlings can be planted outside in late February, then protected from frost, while peppers prefer a warmer temperature and should be planted outside after the last frost, usually in late March or April.

Many of the peppers are slow to grow while tomatoes shoot up very fast. Each growing season will be different and will present different challenges, but the final product is delicious and well worth the effort.

Start Your Own Tomatoes and Peppers from Seed in January — Native Nurseries (2024)

FAQs

Can I start tomato seeds in January? ›

The best time to plant both the seeds of peppers and tomatoes is in January. Tomato seedlings can be planted outside in late February, then protected from frost, while peppers prefer a warmer temperature and should be planted outside after the last frost, usually in late March or April.

Can I start pepper seeds in January? ›

For the best results, seeds should be started indoors approximately eight to ten weeks before the last expected frost date. In most climates, January is a great time for germinating hot pepper seeds, but you may want to start as early as November or as late as February.

Is it too late to start pepper plants from seed? ›

Most seed packets recommend starting pepper seeds indoors 8 to 10 weeks before the last average frost date. I time my pepper transplanting for when I know the weather will be warm enough for consistent nighttime temperatures of 50°F. That's usually late May or early June.

When should I start tomato and pepper seeds indoors? ›

Generally, the time to start your seeds is about 6- 8 weeks before the last expected spring frost date in your area, planting the seedlings outdoors about 2 weeks after that date.

Is January too early to start seeds? ›

Even if the last thing you're thinking about in January or February is the garden, it's actually a great time to start seeds indoors for frost-hardy leafy greens and for slow-to-get-started herbs.

How cold is too cold for tomato seeds? ›

How Cold Can Tomatoes Tolerate? Tomato seeds won't germinate when the soil temperature is below 50 degrees Fahrenheit. Tomato seedlings suffer cold damage in temperatures below 60 degrees Fahrenheit. Some tomato varieties are bred to be more cold-tolerant and can set fruit when it's below 55 degrees Fahrenheit.

How cold is too cold for pepper seedlings? ›

❄️ Signs of Cold Stress

Conversely, shivering peppers aren't happy peppers. Daytime temperatures below 65°F can lead to fruit set failure—the pepper equivalent of stage fright. At night, anything under 50°F is an invitation to leaf curl and overall plant stress.

Should you soak pepper seeds before planting? ›

While not necessary, you can soak pepper seeds prior to planting them to encourage faster germination. Place pepper seeds in a bowl or jar of room temperature water for up to 24 hours to soften the seed coat and break dormancy.

How to germinate pepper and tomato seeds? ›

Heat: Pepper and tomato seeds prefer consistent temperatures of 80-85 degrees Fahrenheit. Keep your trays on a heating mat, put them by a wood stove, or place them on a windowsill that's kept warm by the sun. Try to avoid prolonged temperatures below 65 degrees, since seeds may rot.

Will pepper seeds germinate at 65 degrees? ›

Bottom heat of 80–90°F (27–32°C) is essential for pepper germination. Seeds will germinate in 7–8 days at that temperature. At lower temps, germination is slower and erratic, and percentage germination is reduced.

Is it too late to start tomato seeds indoors? ›

Depending on the growing conditions of your indoor space, you want to start tomato seeds six to eight weeks before the date of the last killing frost. The average date for our last killing frost is mid-April; at higher elevations it can be as late as the first of June.

How long does it take for pepper plants to produce from seed? ›

Generally, it takes about 6-8 weeks, or 60 to 90 days, for peppers to grow from seed and be ready to harvest off the plant. This is an average range for all peppers of different varieties and heat levels.

Can you start tomatoes indoors in February? ›

So, start seeds indoors in early to mid-March. Zone 6: Here, the last frost is typically around mid-April. Hence, late February to early March is a good time to start. Zone 8: With an earlier last frost date in late February or early March, you should start seeds in early to mid-January.

What month do you plant tomatoes and peppers? ›

Tomatoes need about eight weeks and bell peppers about 10 weeks to be ready to transplant from seeds into the garden during their optimal planting time, which is from May to the first part of June. The publication Propagating Plants from Seed will be of great resource if you are thinking about starting from seed.

Should I soak tomato seeds before planting? ›

The technique is proven by biological scientist. During the study the tomato seeds were soaked for 12, 24 and 36 hours, and the best results were achieved after a 24 hour soak. So if you have older seeds or you late with the sowings then you can just soak the tomato seeds in water for a day to speed up the germination.

How late is too late to start tomato seeds? ›

Definitely not. You can plant tomato seeds anytime in the spring. Many people around here don't sow them until April, as they are fast germinators and fast growers. We find they do even better when they are planted in the ground when they're younger (after it warms up and all chance of frost has passed, of course).

What month should I start my tomato seeds? ›

So if your expected last frost date is May 10, for example, count back at least six weeks to March 29 as the day you need to get your tomato seeds planted. This will give the seedlings enough time to grow sufficient roots and leaves to establish quickly when planted out in your garden.

Can I start tomatoes in February? ›

For cooler areas, February is a great time to sow your tomatoes and peppers. You should start drawing out your garden for all the vegetables you want to grow. In late February, there are several cool weather vegetables you can directly sow out in the garden.

Will tomato seeds germinate after freezing? ›

With bad luck NONE will germinate. Tomato seeds must be very very low moisture to survive the freezer. However, we all get a few outdoors to germinate in the spring from the tomatoes that sat on the ground over winter.

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