The Beginner’s Guide To Growing An Onion Plant

  • By: Succulents Plants
  • Date: December 8, 2022
  • Time to read: 9 min.
Onion Plant
Photo by courtesy of romiri


Are you interested in growing your own onion plant, but not sure where to start? With the right materials, some patience, and a few simple steps, you can bring your green thumb to life and have fresh, homegrown onions in no time. In this beginner’s guide, we’ll cover all the basics of growing an onion plant, from selecting the variety to harvesting and storing the onions. So let’s get started!

Materials Needed

If you are new to gardening, growing an onion plant is one of the most rewarding and easy projects you can do. With the right materials, your onion plant will grow in no time!

Before you get started, here’s a list of materials you’ll need to successfully grow an onion plant:

Onion bulbs – Start with bulbs that are about 2–3 inches in diameter.

Potting soil – Look for a soil mix specifically designed for growing onions.

Container – Any container will do, as long as it has drainage holes.

Fertilizer – Choose a fertilizer that is specifically designed for onion plants.

Water – Keep your soil moist, but avoid over-watering.

Planting location – Place your onion plant in a sunny spot for best results.

Once you’ve collected these materials, you’re ready to start planting. If you have an existing onion bulb, you can also try planting it directly in your potting soil. Just make sure the soil is moist, and there’s plenty of room for the bulb to grow.

For more detailed instructions, check out our guide on how to grow an onion plant. Happy planting!

Step-by-Step Guide to Growing an Onion Plant

Are you eager to learn how to grow your own onion plant? You’ve come to the right place! In this step-by-step guide, we’ll walk you through everything you need to know to get your onion plant up and running.

First things first, you’ll need to get some onion seeds or bulbs. When shopping for your seeds or bulbs, remember to look for the right variety of onion for your region. This will ensure you get a good harvest!

Once you have your seeds or bulbs, you’ll need to prepare the soil. Onions prefer soil that is well-drained and full of nutrients. Before planting, mix in some compost or fertilizer to give your seeds or bulbs a great start.

Once you’ve prepared the soil, it’s time to plant. If you’re using seeds, you’ll want to plant them about an inch deep in the soil. If you’re using bulbs, you’ll want to plant them about three inches deep.

Once your plants are planted, you’ll need to water them regularly. Give your onion plants about an inch of water per week, or enough to keep the soil moist but not soggy.

Finally, you’ll need to give your onion plants some sunlight. Onions prefer full sun, so ensure they get at least six hours of direct sunlight each day.

With these simple steps, you’ll be well on your way to growing a successful onion plant. Good luck, and happy gardening!

Step 1: Choose an Onion Variety

If you’re a gardening novice looking to get your hands on some tasty onions, you’re in luck! Growing an onion plant is easy and fun, and with the right variety, you’ll be munching on freshly-harvested onions in no time.

First things first, you’ll need to decide which variety of onion you want to grow. Onions are generally categorized as short-day, intermediate-day, and long-day. Short-day onions will grow the best in southern climates, while long-day onions are best for northern climates.

If you’re not sure which variety to choose, you can read up on the different onion varieties to find which one is best for your region. And if you live in an area with a climate between a short-day and long-day onion, then you’re lucky enough to enjoy the benefits of both planting short- and long-day onions!

When it comes to choosing the size of your onions, you’ll want to pick one that matches the size of your garden. You don’t want to plant onions that are too large for the space you have available.

Once you’ve picked the right kind of onion for your location and garden size, you’ll need to get the seeds or sets from your local garden center. Plant your onions in well-drained soil in an area that gets plenty of sunlight. With regular watering and patience, you’ll enjoy fresh onions in no time!

Step 2: Prepare Soil and Planting Area

The second step in growing an onion plant is to prepare the soil and planting area. While most onions will grow in virtually any type of soil, the best onion growth is achieved in a soil high in organic matter and well-drained. When preparing your soil, you should add plenty of compost or other organic amendments to improve its structure and fertility.

Additionally, you’ll want to ensure that the soil you’re growing your onions in is pH neutral. You can test the pH of your soil with a simple soil testing kit, which can be found at most garden stores. You’ll want to make sure the pH of your soil is between 6.0 and 7.0.

When it comes to preparing the planting area, you’ll want to make sure it’s in a sunny spot with at least 6 hours of direct sunlight per day. Additionally, you’ll want to ensure the area is free from weeds and debris. If there are weeds, you’ll want to pull them out or use an organic weed killer to eliminate them. Finally, you’ll want to make sure the soil is not compacted, so it’s easy for the roots of the onion plant to grow and spread.

Step 3: Plant the Onion Sets

Planting the onion sets is one of the most important steps to ensure a successful onion harvest. The best time for planting is usually in late winter or early spring, when the soil is still cool. Start by selecting an area with full sun and good drainage. Then loosen the soil with a spade or tiller, and add plenty of organic material, such as rotted manure or compost.

Once the soil is prepared, it’s time to plant the onion sets. Space the sets 4-6 inches apart, and plant them an inch or two deep in the soil. For best results, be sure to keep the soil consistently moist until the sets have fully established.

After planting the onion sets, it’s important to protect them from extreme temperatures and pests. Cover the sets with loose mulch to insulate the soil, and keep an eye out for any signs of disease or insects. You can also spray a pesticide to help prevent damage from pests.

As the onion sets begin to grow, thin out the crop by removing some smaller plants. This will ensure enough room for the remaining plants to grow and mature. Finally, be sure to water the plants regularly and harvest them when the leaves start to turn brown. With the proper care and attention, a successful onion harvest is within reach.

Step 4: Water and Fertilize the Onions

Now that your Onion Plant is in its final home, you’re ready to begin watering and fertilizing it. Onions need regular watering, but be careful not to overwater them. Onions should be watered in the morning, so that the foliage and soil can dry out before nightfall. This will help prevent fungal growth and disease. You can add a water-soluble fertilizer to the water, or use a granular fertilizer. The amount you use will vary depending on the type of fertilizer you use, so follow the directions on the packaging.

Be sure to use a fertilizer specifically formulated for Onion Plants. Too much nitrogen can cause Onion Plants to produce large, undersized onions. Also, be sure not to overfertilize – it can cause onion bulbs to split.

You should also mulch around the Onion Plant. This will help retain moisture and keep the soil cool. Be sure to use an organic mulch, such as shredded bark, leaves, or straw. This will help the soil retain even more nutrients, and help keep the soil moist and cool.

Water and fertilizing your Onion Plant regularly will help keep it healthy and productive. With a little care and attention, you can ensure your onions grow big and tasty.

Step 5: Weed and Thin the Onions

Now that you’ve planted your onion plants, it’s time to give them room to grow. Weeding and thinning the onions is an important step in the onion-growing process. This will ensure your onions grow strong and healthy, and that each plant has enough space for their roots to develop comfortably.

Start by removing any weeds that may have grown before or alongside your onion plants. Make sure to take out the entire weed – root and all – so it doesn’t come back. Once you’ve weeded the area, it’s time to thin out your onions.

When thinning your onion plants, make sure to give each plant enough space. The hole you dug at planting time should be wide enough for the onion to spread its roots, and deep enough to accommodate proper growth. Place the onion plants at least three inches apart, and thin out any extras. The remaining onions should be healthy and uniform in size.

With that, you’ve finished step five of your onion-growing journey. Congratulations! You’re well on your way to a successful harvest.

Harvesting and Storing Onions

Harvesting and storing onions is a relatively simple process once you understand the basics. Onions are usually ready to be harvested a few weeks after planting, when the tops of the onion have started to turn yellow and fall over. Once this happens, you should carefully dig up the onion and be sure to leave a portion of its root attached. After you have harvested the onions, you should trim off any remaining tops and roots, and then store them in a cool, dark place, such as a basement or garage. It’s important to check on the onions periodically to ensure that none of them are rotting or growing mold.

If you want to save some of your onions for later use, you can also store them in a refrigerator or freezer. To do this, simply wrap the onions in a plastic bag and place them in the refrigerator or freezer for up to a year. When you’re ready to use them, allow the onions to thaw before using.

There are many varieties of onions that you can grow. Each type of onion has its own harvest time and storage requirements, so be sure to research the variety you are growing before harvesting or storing them.


Growing your own onion plant is a rewarding and satisfying experience that can be enjoyed by novice and experienced gardeners alike. By following the step-by-step instructions outlined in this guide, you should grow your own onion crop in your own backyard with relative ease. Of course, you should always remember to be patient with your onions, as it can take several months for them to mature.

It’s important to remember that growing your own onion plant requires commitment and dedication to ensure successful, high-quality yields. Once you’ve done the hard work of planting, weeding, and thinning your onions, you’ll be rewarded with a delicious and healthy crop that can be enjoyed for months to come.

Whether you’re growing onions for the first time or seasoned gardeners, this beginner’s guide has you covered. From the materials needed to the harvesting and storing steps, you have all the information you need to successfully grow your own onion crop at home. With a little hard work and dedication, you can create a remarkable onion plant that will provide you and your family with delicious onions for months.


Latest Articles :

Cultivating Deliciousness: The Edible Passion Vine Plant

Exploring The World Of Urban Jungle Plants

Exploring The Rare Beauty Of The Whale Fin Snake Plant

Edible Passion Vine Plant

Previous Post

Cultivating Deliciousness: The Edible Passion Vine Plant

Next Post

Enjoy The Bounty Of Your Own Lima Bean Plant

Lima Bean Plant