How To Grow Vegetables Indoors Successfully? Even Without Sunlight And Soil!

Are you planning on growing vegetables indoors? Do you want to know how to grow vegetables indoors? If yes, you are in the right place. We are going to answer all your queries in the following article!

Many people want to grow vegetables indoors. But, they cannot do that without adequate knowledge. In this article, we will cover all the possible aspects. You will be aware of the vegetables that you can grow all year round. Also, we will discuss how to grow vegetables indoors without sunlight and soil. Ok, let’s dig deeper!

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What Veggies Can You Grow Indoors?

There are many options to choose from when it comes to vegetables. To help you choose, I can make the decision process a bit easier.

The best veggies that you can grow indoors include carrots, spinach, potatoes, radishes, green onion, chili peppers, and salad greens. But we shouldn't also forget cauliflowers, beets, broccoli, dwarf beans, arugula, ginger, peas, mushroom, cabbage, eggplants, mustard greens, and tomatoes.

What Are The Growing Conditions For Carrots?

Carrots For You To Chew On!
© Anna E –

Carrots will not demand a lot of space. But, this vegetable will need deep soil for proper growth compared to other vegetables. If you plan to grow carrots, make sure that the plant gets enough light, at least twelve hours per day.

Why Should You Grow Green Onions Indoors?

Green onions can be grown indoors since they do not need much care and sunlight, like other veggies.

Yes, Herbs Aren’t Vegetables, But Grow Them Anyway!

What Herbs Should You Grow?

Even though herbs aren’t vegetables, you should definitely grow them indoors. As herbs love sunlight, you will have to ensure that they are getting an adequate amount of light at least twelve to sixteen hours a day. The best herbs for indoor growing are parsley, chives, rosemary, sage, mint, oregano, cilantro, and thyme.

Don’t Forget Salad Greens And Chili Peppers!

Yes, you can grow chili peppers and salad greens indoors. Chilis will need full sun as well as warm weather. But they can grow indoors since these plants are self-pollinating.

These plants will need fourteen to twenty hours of light a day, and most leafy vegetables such as kale, arugula, and spinach will do well indoors when they get twelve hours of sunlight a day.

Let’s Add Microgreens To The Mix

You can also consider microgreens. They are rich in nutrients and vitamins, and the best thing about microgreens is that you can harvest them when they are only two to three weeks old!

Microgreens Growing In A Box
giedre vaitekune/

If You Have Enough Space, Consider (Sweet) Potatoes And Beets

Beets can be grown indoors. But, they might need a bit more space to grow. You can also grow sweet and regular potatoes indoors.

Potatoes will demand more space compared to other indoor veggies. Also, as they grow, you might need to add soil on top of the potato seedlings, so remember to keep some soil close to you.

When it comes to radishes, they are fast growers. They will take thirty to forty days to grow to maturity. Also, radishes will grow with the same amount of light as your potatoes and sweet potatoes. But, you will have to ensure that the plant isn’t too “crowded” because it needs space to grow.

Last But Not Least, Tomatoes!

You might want tomatoes in your indoor garden. Yes, you can do it. These plants love warm weather. Thus, you will have to make sure that they are getting a lot of light, around fourteen to twenty hours a day.

Do All Vegetables Have The Exact Growing Needs?

As mentioned earlier, you can grow many vegetables indoors. But, as you noticed, their needs will vary between each other. While some plants will demand more sunlight, others might need a lot of space. Thus, you’ll have to understand each plant’s unique needs and then take adequate steps to ensure proper growth.

Is It Safe To Grow Vegetables Indoors?

Yes, it’s completely safe to grow vegetables indoors. There is no doubt that every plant will have some unique requirements. With an adequate amount of sunlight or by using grow lights, you’ll be able to grow leafy greens, herbs, and even fruits indoors.

Paprika And Cucumber Under Grow Lights
Korostylev Dmitrii/

Space will not be a hurdle since most indoor plants can grow in a limited space. The key is to choose the right plant. Understand how much light the plant needs. When the plant needs more light, choose any area of your home that gets ample sunlight.

As discussed earlier, you can grow a lot of plants indoors. Many prefer to grow different vegetables such as kale, beet, carrots, ginger, mint, radishes, and tomatoes. When there isn’t any natural light available, you can consider the best alternatives. The options are many in the current condition.

How To Grow Vegetables Indoors From Seeds?

You can grow vegetables indoors from seeds. But, some vegetables, including hot peppers, eggplants, and tomatoes, will demand a long growing season. Thus, you will have to start the process in spring. Here are the step-by-step instructions to make it easier for you.

  • Get high-quality and fresh seeds from a reliable source.
  • Get the seed-starting mix and pot.
  • Make sure that the pot has drainage holes.
  • Plant the seeds at the required depth (two to three times deeper than the width of seeds).
  • Place the pot in a warm area.
  • Moist the seed-starting mix (avoid saturating with water).
  • Place the pot in a sunny area once the seedlings emerge. Your window will work perfectly for this if it gets sunlight.
  • Fertilize when necessary. (Depending on the needs of a plant your growing).
Once you have seedlings, you will have to thin them when they have two sets of leaves. Doing this will ensure proper growth. Also, remember that it's always essential to buy high-quality seeds and create a favorable environment for fast and appropriate plant development.

How To Grow Without Soil?

Even though it sounds pretty impossible, you can grow vegetables indoors, even without soil. Your veggies and herbs can grow well, even without soil but not without sunlight and water, which is also used to provide the fertilizers your plants need. This is also called soilless or hydroponic gardening. It differs from traditional growing because the roots are sitting in a water-based solution instead of soil.

What Are Some Of The Benefits Of Hydroponic Gardening?

Hydroponically grown plants are easier to grow because there won’t be any bacteria, soil-borne pests, or weeds to worry about. These kinds of systems are also easily accessible, and their best part is that you can use them to grow vegetables throughout the year.

When You Grow Hydroponically, You Fertilize And Water Your Plants At The Same Time!

How To Grow Vegetables Indoors In The Winter?

What’s the best thing about indoor growing? You can grow vegetables indoors, even in winter! But, you will have to know how to do it right. First, you will have to understand which plants can grow during this season. Once you’ve chosen the plant, you will have to create a favorable environment for them.

If your house has a sunny south-facing window, you can effortlessly grow some plants in the winter. If you already have plants outdoors growing in pots, you can bring them indoors in the winter. You can even provide them fertilizers to ensure their optimal growth.

Some plants might need supplement lighting for survival as the winter days might be too short for some species to photosynthesize. You can consider investing in grow lights and indoor accessories to ensure the proper growth of those plants.

What Plants Can You Grow Indoors In Winter?

Some plants that can grow well indoors in the winter are herbs, greens, citrus, sprouts, cherry tomatoes, baby ginger, microgreens, and chili peppers.

When it comes to herbs, mint has a minor heat requirement. Dill and basil have some temperature needs, but a household environment is usually already around this temp.

If you remember to locate your greens near a sunny window, they should grow well enough. If, on the other hand, there isn't enough sunlight available, you can consider using artificial lights and use them ten to twelve hours a day.

Cherry tomatoes, for example, are the easiest plants to grow in the winter. But they will need artificial lights for sixteen hours a day. In brief, we can say that many indoor plants can grow in the winter with artificial lights. You only need to know their preferences. While some plants need ten to twelve hours of sunlight, others might need sixteen to up to twenty hours.

How To Grow Vegetables Indoors All Year Round?

Some vegetables can grow indoors all year round. Here again, you will have to create the proper conditions for their growth. Here are a few things that you can consider if you want to grow vegetables indoors all year around.

When it comes to plants that can survive all year round, you can consider carrots, green onions, hot peppers, microgreens, radishes, leafy salad greens, and radishes.

1. How Much Space They Need?

Space is one of the critical things to consider. Most plants will take only a little bit of space. Many of them can grow on a small end table or a single windowsill. Or, if you want an extensive garden, you will have to use a bigger bench or table inside your home. You can also use shelves. But, you’ll have to ensure that the plants will receive enough light.

2. How Much Light They Need

Your plants will need sunlight to survive and grow well. You can consider using your south-facing window for your indoor garden. This way, your plants will get direct sunlight in the summer and spring. But, if a sunny windowsill doesn’t serve the purpose, you might need to invest in grow light(s).

To know whether you need grow lights, observe the leaves to see if they are receiving enough sunlight or not. If the leaves are small and light and stems are thinner than usual, it might state that your plants are not receiving enough light.

3. The Optimal Temperature To Grow Veggies Indoors?

The indoor temperature needs to be between 65 and 75°F (about 18 to 24°C) to ensure that your veggies will grow properly. Too much heat will result in yellow leaves, and if a temp is too low, stunt growth.

A lack of humidity can also cause a lot of problems for indoor plants. If the humidity level is low, you can mist plants every day to increase the humidity level. Humidifiers are also an excellent option to consider to increase the moisture level inside your home.

4. What Kind Of Soil Do Indoor Vegetables Need To Grow Well?

Firstly, remember that you cannot use outdoor soil for indoor plants. If you do so, it will increase the possibility of bringing garden pests and weeds inside. Also, the outdoor soil is a bit heavier. So, always buy soil from the nurseries specially made for indoor plants, and in this case, vegetables. It will stay loose inside your pots, and you can expect excellent drainage.

What Are the Easiest Vegetables To Grow Indoors?

As mentioned above, many vegetables can grow well indoors. If you are looking for the easiest vegetables, you can consider carrots, chilis, lettuce, tomatoes, microgreens, and scallions.

Carrots are easy to grow indoors. They don’t need a lot of space, only vertical space depending on the variety of your choosing. The same is true for chilis and lettuce. Unlike carrots, lettuce is shallow-rooted and thus won’t need a deep container. You can also consider microgreens, which are the most effortless edibles to grow indoors.

Final Words

Now, you have all the basic knowledge, and you know exactly how to grow vegetables indoors. If there is only one thing you should learn from this article, remember that all plants are different, and it’s essential to understand their individual needs to create a favorable environment for their growth. An indoor vegetable garden can survive in all weather conditions, and that’s the beauty of growing indoors, so let’s get growing!

Featured image credit – Angelica Corneliussen/

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