The Complete Guide to Indoor Vegetable Gardening- Grow Fresh Veggies All Year Long!

Who says that gardening is only a spring, summer, and fall sport? Not me!! If you happen to live in the northern parts of the world, then you’re well accustomed to the fact that temperatures are not ideal for gardening in the winter. If you live anywhere like where I live, then your garden beds will be covered in a crisp, white blanket of snow at the dawn of December. Not only making gardening questionable, but impossible. Winter can make you miss the days when you were eating a fresh garden salad every day, smelling the fragrant roses, and basking in the sunshine. Growing an indoor vegetable garden is a great way to take some of that longing away. Although you may not be able to bask in the sun like you were in late July, you will still be able to enjoy the many benefits that gardening has. Namely, having fresh veggies! Winter salad? Yes, please!

Methods for Indoor Vegetable Gardening

Before you go planting seeds in your planter trays, you must choose a method. There are a few different method options when it comes to indoor vegetable gardening. Each method has its pros and cons. But, not to worry! My goal is to help you choose the best possible method for you and your home. 

Hydroponic Systems

Hydroponic systems are a great way to grow an indoor vegetable garden. They’ve become immensely popular in the last decades, and for many reasons. Hydroponic systems come in a wide range of different sizes, styles, and shapes. There’s almost bound to be a match for you and your home. Hydroponic systems work differently from a garden bed in that there is no soil involved. Instead, there is water. While plants in a garden bed sift out nutrients from the soil, plants in a hydroponic system get direct nutrients from the water that they sit in. If you would like to learn more about hydroponic gardening, then I recommend checking out the websites I have linked below for you:

1. How Hydroponic Systems Work | Miracle Grow
2. The 7 Best Indoor Garden Systems of 2023 | Tree Hugger
3. 6 DIY Hydroponic Systems | The Spruce

Container/Pots 

Unlike hydroponic indoor gardening, container/pot indoor gardening is often less of an investment. Growing indoor vegetable gardens in containers/pots can be as big as growing a tomato plant to maturity, or as small as growing an herb plant in a 4-inch pot. There are many different pots and containers available out there. It’s really up to you how fancy you would like to go. Some of my personal favorites are self-watering pots (as I tend to overwater), pots with self-draining systems (also because I tend to overwater), and clay pots. Picking the right pot for a plant can be tricky, but my overall take is that most plants like a pot that has good drainage and ventilation. 

Green Walls

Another great method that can produce excellent results is a green wall. Green walls work in multiple different ways. There are many different styles, installation methods, and price ranges. You can either build a DIY green wall or pay to have one installed. The options for green walls are endless. But, if you love a green salad every day, then a green wall is probably the best investment you’ll ever make. They can produce an abundance of leafy greens and herbs that will keep you happy all season long. 

The 10 Best Plants For Indoor Vegetable Gardening

Leafy Greens

Kale, lettuce, spinach, arugula, cabbage, bok choy… if it’s green and leafy, chances are it makes an excellent indoor gardening plant. Some of my personal favorite varieties include dinosaur kale, romaine lettuce, and emperor spinach. 

Tomatoes

Say what now? Tomatoes can be grown indoors? Believe it or not, they can! In fact, they do quite well when grown indoors. The biggest factors for growing fruitful tomato plants indoors are water, warmth, and sunlight. Tomatoes must be kept in a warm, sunny spot around your home if you want them to produce ripe fruits. 

Carrots

Carrots are a great indoor vegetable gardening plant because they don’t require much space or sunlight. They literally can be grown in any sized pot. Leave your little seedlings in a space that receives partial sun, and water occasionally. You should have some bright orange (or purple, yellow, or white) carrots within 60-80 days. 

Microgreens

Microgreens are basically any plant that has not yet reached maturity before consumption. They’re often planted in large, shallow trays with soil and covered until they begin to sprout. After they’ve sprouted, the cover is removed and they’re placed under a grow light or in an area that receives ample sun. Once the microgreens reach about 2-5 inches in height, you cut them back like you would some grass. You can eat them in salads, smoothies, juices… anything you want. Microgreens are super easy, super affordable, and super fun to grow. They have endless health benefits and will make your daily salad taste like heaven in a bowl.

Sprouts

Guess what? Sprouts are an even easier version of microgreens. Unlike microgreens, sprouts do not require large trays, soil, or much sunlight to grow. In fact, you can grow sprouts in nothing more than a Mason jar with a special sprout-growing lid and some water! If you’re a beginner to indoor vegetable gardening, then these little sprouts are for you. They’re basically foolproof- and, the best part? They taste amazing!

Herbs

Herbs are another great option for indoor vegetable gardening. They don’t take up much space, time, or effort. The biggest thing that must be remembered with growing herbs indoors is that they will need sunlight and warm temperatures. Most herbs do not grow in temperatures that reach below 50 degrees, nor do they grow well when given minimal sunlight. All that must be done to avoid this is putting your herb plant right in front of a window that receives lots of sunlight and doesn’t let the temps drop below the 50s. Some of the best herbs for indoor vegetable gardening are basil, thyme, oregano, parsley, cilantro, and chives. Say “yay” to fresh herbs all year long! 

Green Onions

You know that long, green stem thing that sometimes pops out of an onion you have had sitting on the counter for too long? Guess what? You just grew a green onion! Full of flavor and literally the easiest plant to grow, green onions are great for growing indoors. They can be grown in many different ways. My family finds the most success by buying pre-established green onions and placing them in a Mason jar with water. When you want some green onions in your dinner, you just cut the green onion stem down a few inches. It will continue to grow back like hair as long as you keep water in the bottom of the mason jar. 

Hot Peppers

If you like to make spicy food, then have you ever considered growing hot peppers right inside your home? That’s right! Hot peppers are excellent for growing indoors. Similar to a tomato, the hot pepper plant’s only request is that you put it in an area that receives lots of sunlight and warmth. Hot peppers do not thrive well in cold temps and need ample sunlight to produce. If you’re concerned about not being able to provide enough sunlight for a hot pepper plant, don’t worry! That’s what a grow light was created for. Just find a warm place next to an outlet, plug her in, water the plant when needed, and bam! Spicy cajun pasta? Here you come!

Potatoes

Nothing beats some homemade french fries. Potatoes are often thought of as an outdoor plants grown in a pile of soil. But, did you know that a potato can literally grow anywhere with a pile of nutrient-dense dirt? In fact, sometimes I find potatoes growing in my compost pile! Potatoes can be grown indoors all year long in some potato bags or large pots. They don’t require much sunlight to grow, so they’re a great option if you lack sunny window space. Keep the soil moist. Within about 90 days, you can dig your potatoes out of the bag or pot like you would in your garden bed. 

Radishes

Radishes- similar to carrots- make great indoor vegetable gardening plants. They don’t require much space, so you can plant as many as your heart desires. The biggest thing with growing radishes indoors is making sure you leave enough space in between radish seeds in the pot. If they’re too crowded, they won’t produce large bulbs. They mature rather quickly, which makes them super fun to grow. They’ll also need a bit more sun than carrots, so if you have a sunny window or grow lights available, that would be an ideal spot for them. Give them water when needed, and let them grow. You can harvest them as soon as you see the red bulbs burst above the soil’s surface. 

3 Things to Consider When Growing Vegetables Indoors

Light

All plants need light. Whether this light source is from a window, grow light, or a really bright light bulb, all plants must have light to grow. Some require direct sunlight, while others require indirect. Before you invest in any plants for growing an indoor vegetable garden, really evaluate your home’s light sources. Does that bedroom receive morning sun or hot afternoon sun? Does that glass door wall face the north or the south? I recommend writing what windows receive which type of sunlight, consider how much space you have available, and then order your indoor plants according to the conditions your home can provide. If you happen to lack natural sunlight via windows, then I would order some grow lights… No matter the circumstances, your plants will need light to be fruitful. 

Water

All living beings need some form of water to survive. Plants are included. While some plants will need less water than others, you should still check at least every two days to make sure that the plant’s soil is still moist. The only exception to this rule are plants in the cactus family. A good watering once per week will often suffice. Make sure you do research on your plant’s water preferences before you begin growing your indoor garden. 

Soil

Unless you’re indoor vegetable gardening using a hydroponic system, you’ll need to have quality potting soil and compost readily available for your plants. Indoor plants have a harder time getting the right amount of nutrients because of the lack of worms, decomposing leaves, and all of the vitamins and minerals that are naturally found in soil outdoors.

If you want your plants to produce harvests indoors, then you will have to get the right potting soil. Make sure that you buy high-quality, nutrient-dense potting soil before you grow any indoor plants. There are tons of different soil blends specifically designed for certain varieties of plants. If you have a somewhat exotic plant on your hands, then I would go as far as to pick a specifically designed soil for that plant. For example, I have a banana plant. Instead of getting your typical indoor gardening potting soil, I opted for a banana/tropical fruits potting soil blend. Picking a specially designed soil formula is an assurance to me that the banana plant is getting the right amount of drainage/nutrients. I also recommend getting some manure or compost to mix with your potting soil. Poor soil equals poor harvest. Trust me, don’t skimp out in this department. You’ll thank me when your indoor tomato plants have big, beautiful fruits on them.

Conclusion

Indoor vegetable gardening is a great way to give you fresh veggies all season long. Yes, winter included. If the winter blues are hitting you hard this month, then this is a great cure. Nothing brings more joy, excitement, and marvel than growing your own fruits and vegetables. I hope that this blog post has inspired and taught you a few things about growing indoor vegetable gardens. I also hope it has shown you that growing your own produce is not impossible… even when the snow is above your knees and the weather is well into the 20s. After all, there’s always a way. All we have to do is find it. What’s the wait? Let’s get indoor vegetable gardening!

Oh, no!! You’re not a vegetable gardener? Perhaps growing houseplants is of greater interest to you then. Make sure to go and read my 10 Common Houseplants that Require Minimal Care and Effort to Grow