top of page

How to Plant, Grow, and Harvest Brussel Sprouts

growing brussels sprouts

Brussel sprouts, scientifically known as Brassica oleracea, are a part of the Gemmifera Group of cabbages, known for their edible buds. Although these leafy green vegetables are native to the Mediterranean region, they have since been cultivated and consumed worldwide, enhancing our meals with their unique, hearty flavor.

Brussel sprouts are small and resemble miniature cabbages. They are typically grown for their green buds, which appear in the leaf axils, starting at the base of the stem and working upward. These sprouts are the primary edible portion of the plant.

Brussel sprouts are not only a delicious addition to many dishes but also provide an array of health benefits. They are rich in vitamins C, K, and A, and are a good source of dietary fiber and antioxidants. In addition, these sprouts are known for their potential cancer-preventive properties due to their high glucosinolate content.

Growing Brussel sprouts in your garden can be an exciting journey. As you cultivate these plants, you'll get the chance to witness an interesting growth pattern, which culminates in a harvest of these nutritious, miniature cabbages.

In the upcoming sections, we'll explore how you can plant, grow, and harvest Brussel sprouts in your own garden, providing you with a fresh supply of this nutrient-packed vegetable for your cooking adventures.

Optimal growing conditions for Brussel Sprouts - Climate, sunlight, and soil requirements Optimal

Brussel sprouts thrive under particular conditions, and understanding these can significantly improve your success in growing them.


Brussel sprouts are cool-weather crops. They flourish best in temperatures between 45°F and 75°F, making them an excellent choice for both early spring and fall gardens. As a biennial plant, they can survive frost and even taste sweeter after a light frost, making them well-suited for colder climates.


Despite being tolerant of cooler temperatures, Brussel sprouts still love the sun. They need around 6 hours of direct sunlight every day to thrive. Though they can manage with less sunlight, it may slow their growth and decrease yield.

Soil Requirements

Brussel sprouts prefer fertile, well-drained soil that is rich in organic matter. A slightly acidic pH range of 6.0 to 7.0 is ideal for their growth. Before planting, enrich your soil with compost or well-rotted manure to ensure the sprouts receive ample nutrients.

Unique Qualities

One of the unique qualities of Brussel sprouts is their striking growth pattern. They grow on a thick stalk, starting from the ground and moving upwards, with sprouts resembling miniature cabbages.

Moreover, Brussel sprouts have a long growing season, and the smaller sprouts at the top of the stalk usually mature after the lower sprouts have been harvested, extending your harvest period.

In the next sections, we'll guide you through the process of planting, growing, and harvesting Brussel sprouts under these optimal conditions, setting you up for a successful gardening season.

Step-by-step Guide to Planting Brussel Sprouts

growing brussels sprouts

When to Plant – Best time of the year for planting brussel sprouts

Brussel sprouts are a cool-weather crop that can be planted at different times of the year depending on your climate and the specific variety.

Early Spring Planting

If you have a long growing season, you can start Brussel sprouts indoors 6 to 8 weeks before the last expected spring frost. After the seedlings have grown to about 3 inches and the threat of frost has passed, you can transplant them outdoors.

Late Summer or Early Fall Planting

Alternatively, for fall harvesting, you can plant them in late summer or early fall. This approach allows the developing sprouts to mature in the cooler weather of fall, which can improve their flavor. Start seeds indoors 12 to 14 weeks before the first expected fall frost or sow directly outdoors 85 to 100 days before the first frost date.

Unique Qualities

One of the unique features of Brussel sprouts is their resilience to cold. Unlike other vegetables, Brussel sprouts can withstand frost and the plant's flavor actually improves after exposure to frosty conditions.

In the following sections, we will delve into the steps of choosing the right seeds, preparing the site, and planting process to help you start your Brussel sprouts garden successfully.

Seed Selection – Choosing the right seeds for your garden

When it comes to growing Brussel sprouts, the choice of seeds can greatly impact your success. Here's what you need to know when selecting your seeds:


There are several varieties of Brussel sprouts to choose from, each with their own growth patterns and flavor profiles. Some popular varieties include 'Long Island Improved', 'Jade Cross', and 'Royal Marvel'. 'Long Island Improved' is a time-tested heirloom variety known for its high yield, while 'Jade Cross' and 'Royal Marvel' are hybrid varieties that are praised for their disease resistance and uniform sprout size.

Seed Quality

Opt for high-quality, certified disease-free seeds from reputable seed providers. This increases the chance of successful germination and healthy growth of your Brussel sprouts. Avoid seeds that appear shriveled or discolored, as they may be old or poor-quality.

Organic or Non-Organic

You can choose between organic and non-organic seeds based on your personal preference. Organic seeds are produced without synthetic pesticides and fertilizers and are often GMO-free. Non-organic seeds can be just as viable, but may not meet the criteria for organic farming.

Unique Qualities

What sets Brussel sprouts seeds apart is their cold tolerance. The seeds, and later the plants, can withstand cooler temperatures, making them an excellent choice for a fall garden or an early spring planting in colder climates.

Once you've selected the right seeds, the next step will be preparing your garden bed or pot for planting, which we'll cover in the next section.

Site Preparation – How to prepare the garden bed or pot for planting

growing brussel sprouts

Brussel sprouts require a well-prepared site to grow successfully. Here are the steps to get your garden bed or pot ready:


Brussel sprouts love sunlight and do well in areas with full sun exposure for at least six hours per day. Choose a location in your garden that is not shaded by larger plants or buildings. If you're planting in a pot, make sure it's positioned in a sunny spot.

Soil Preparation

Brussel sprouts prefer fertile, well-drained soil with a pH between 6.0 and 7.5. You can amend your garden soil by adding compost or well-rotted manure to improve its fertility and texture. If the soil is too acidic, you can raise the pH by adding lime, and if it's too alkaline, you can lower the pH with sulfur.

Bed Preparation

In the garden bed, create rows that are about 2-3 feet apart. This will give your Brussel sprouts ample space to grow and ensure proper air circulation, which can help prevent disease. If you're using a pot, ensure it's at least 12 inches in diameter and depth to accommodate the Brussel sprout's size.

Unique Qualities

What sets Brussel sprouts apart in site preparation is their need for firm soil. To prevent the plant from becoming loose and tipping over as it grows, press the soil down firmly after planting. Also, remember that Brussel sprouts are a cool-season crop, and they appreciate a little shade in the heat of summer.

After your site is prepared, the next step is the planting process, which we will go over in the following section.

Planting Process - Detailed Steps on How to Plant Brussel Sprouts Seeds or Seedlings

Planting Brussel sprouts, whether from seeds or seedlings, requires a bit of care. Below, we have outlined the process for both methods:

Planting from Seeds

1. Sowing: Sow the seeds 1/2 inch deep in your prepared soil. If you are planting in rows, space the seeds 3-4 inches apart. For square-foot gardening, plant one seed per square foot.

2. Germination: The seeds should germinate within 5-10 days. Ensure the soil stays moist but not waterlogged during this period.

3. Thinning: Once the seedlings have sprouted and grown a couple of sets of true leaves (the leaves that appear after the initial seed leaves), thin them to a spacing of about 18-24 inches apart. This gives each plant room to grow and ensures proper air circulation.

Planting from Seedlings

4. Transplanting: If you're planting seedlings, plant them at the same depth they were in their pot, about 18-24 inches apart to allow for growth.

5. Watering: Water the seedlings thoroughly after planting.

Unique Qualities

Brussel sprouts have a longer growing season than many other vegetables, which means they often need to be started indoors in climates with shorter growing seasons. If you are starting your seeds indoors, you'll want to do so 6-8 weeks before the last expected spring frost. Transplant the seedlings outdoors when they are about 3 inches tall or when there are 2-4 true leaves.

In the upcoming section, we'll discuss the specifics on how often and how much to water your growing Brussel sprouts.

Care for Growing Brussel Sprouts

growing brussels sprouts

Watering – How often and how much to water the plants

One of the essential factors in growing Brussel sprouts successfully is providing them with the right amount of water. As with most vegetables, a steady supply of water is necessary for healthy growth.

Watering Frequency

Brussel sprouts prefer consistently moist soil. In general, aim for about 1 to 1.5 inches of water per week. This can come from rainfall or supplemental watering. During dry periods or heatwaves, you may need to water more frequently to maintain soil moisture.

Watering Technique

Watering should be done at the base of the plant to prevent water from splashing on the leaves, which can lead to fungal diseases. Consider using a soaker hose or drip irrigation system, as these methods will deliver water directly to the roots where it's most needed.

Unique Qualities

One unique aspect of Brussel sprouts is their resilience in the face of fluctuating water conditions. They can handle a bit of dryness better than many other vegetables. However, if the plants do not receive enough water, the growth of the sprouts can be stunted, leading to a reduced harvest.

In the upcoming section, we will cover how to properly fertilize your Brussel sprouts to ensure robust growth and a bountiful harvest.

Fertilizing – The type of fertilizer needed and how to apply it

Brussel sprouts are heavy feeders, meaning they need ample nutrients to produce those delicious sprouts. A proper fertilizing regimen is crucial for their growth and development.

Type of Fertilizer

A balanced, all-purpose garden fertilizer works well for Brussel sprouts. Look for a granular or liquid fertilizer with a ratio close to 10-10-10 (Nitrogen - Phosphorus - Potassium). The nitrogen promotes leafy growth, while phosphorus and potassium support root and sprout development.

Application Process

Prior to planting, mix the fertilizer into the top few inches of soil. Once the plants are in the ground and well-established, side-dress with additional fertilizer about once a month. Follow the manufacturer's instructions regarding the proper amount to apply.

When side-dressing, apply the fertilizer about 6 inches away from the base of the plants to avoid burning the roots. Water thoroughly after application to help the nutrients penetrate the soil and reach the roots.

Unique Qualities

Brussel sprouts have a unique capacity to concentrate nutrients from the soil into their sprouts. This allows them to pack in a wealth of vitamins and minerals, making them a powerhouse of nutritional value.

Ensuring that the plants are well-fertilized will not only support healthy growth but will also result in a more nutrient-rich harvest. In the following section, we'll take a look at how to manage common diseases and pests that can affect your Brussel sprouts crop.

Disease and Pest Control – Common diseases and pests that can affect Brussel sprouts, and how to manage them

Protecting your Brussel sprouts from diseases and pests is an important part of successful gardening. The robust nature of Brussel sprouts helps them fend off many problems, but some issues might still arise.

Common Diseases

Clubroot: This soil-borne disease causes swollen and deformed roots, which can stunt growth and lead to wilting. If you have had clubroot in your garden, rotate your crops and avoid planting Brussel sprouts in the same area for several years.

Black Rot: This bacterial disease results in yellow, v-shaped marks on the outer edges of leaves. Prevent black rot by ensuring good air circulation around your plants and not watering them from above.

Powdery Mildew: This fungal disease appears as white, powdery spots on leaves. It can be managed with proper spacing to ensure air circulation and by using fungicidal sprays if necessary.

Common Pests

Cabbage Worms: These small green caterpillars are a common pest for all members of the cabbage family, including Brussel sprouts. They can be picked off by hand, or for larger infestations, consider using a product containing Bacillus thuringiensis (Bt), a naturally occurring bacteria that is harmful to caterpillars.

Aphids: These tiny pests suck the sap from the plants, causing the leaves to curl and yellow. They can be managed by spraying the plants with a strong stream of water or using an insecticidal soap.

Slugs and Snails: These pests are attracted to the moist, shady conditions often found in Brussel sprouts crops. They can be controlled using various methods, including beer traps or diatomaceous earth.

Unique Qualities

Brussel sprouts have a distinctive tolerance for cooler temperatures, which can reduce the prevalence of many pests and diseases that thrive in hot, humid conditions. This makes them an excellent addition to the garden for those looking for a crop that requires a bit less vigilant pest and disease management. In the next section, we'll learn about when to harvest your Brussel sprouts for the best flavor.

Harvesting Brussel Sprouts

growing brussels sprouts

When to Harvest – Identifying signs that the Brussel sprouts is ready for harvesting

Timing is key when it comes to harvesting Brussel sprouts. It's crucial to know when your sprouts are at their peak to ensure you're getting the best possible taste and nutrition from your harvest.

Brussel sprouts usually mature between 80 to 100 days from transplanting, but here's what to look out for:

Size: Mature sprouts are typically 1 to 2 inches in diameter. They should be firm and tight. Larger sprouts tend to lose their sweetness and become bitter.

Color: Look for sprouts that have a bright green color. Yellow or pale green sprouts are usually overripe and have a more bitter flavor.

Order of Harvesting: Brussel sprouts mature from the bottom of the stalk upwards. So, start harvesting from the lower part of the stalk when the sprouts are about the size of a large marble.

Frost Exposure: Interestingly, Brussel sprouts taste best after they've been exposed to a light frost or two, which tends to sweeten their flavor. Therefore, in colder climates, it's often beneficial to wait until after the first frost to start harvesting.

Unique Qualities

Unlike many vegetables that need to be harvested all at once, one of the unique qualities of Brussel sprouts is that they can be harvested over a long period of time as the sprouts mature on the stalk. This extended harvest period, often lasting many weeks, can provide a sustained source of fresh vegetables from a single planting.

In the next section, we'll explore the best techniques to harvest your Brussel sprouts while ensuring the health of your plants.

How to Harvest – Techniques for harvesting Brussel sprouts to prevent damage to the plant and fruit

Once your Brussel sprouts have reached their ideal size and color, it's time to reap the fruits of your labor. Here's how to do it:

Choose Your Tool: A sharp gardening knife or pruners will work best for harvesting Brussel sprouts. Ensure your tool is clean to prevent any potential spread of disease.

Harvesting Method: Start from the bottom of the stalk, as these sprouts mature first. Hold the stalk steady with one hand while you cut the sprout off with your tool. Try to leave as little of the stem on the sprout as possible to maximize your yield.

Stalk Harvesting: If you prefer, you can also cut the entire stalk off the plant and remove the sprouts later. This can be especially useful if a hard frost is expected and you need to harvest quickly.

Unique Qualities

One of the distinctive features of harvesting Brussel sprouts is their resilience to cold weather. In fact, they're one of the few vegetables that can be harvested well into winter, even after the first frosts have arrived. This quality makes them a fantastic addition to your garden if you're looking for a winter-hardy vegetable.

Next, we'll discuss how to properly store and preserve your Brussel sprouts to ensure they stay fresh and retain their nutritional value for as long as possible.

Post-Harvest Care and Storage – How to store and preserve Brussel sprouts for maximum freshness and longevity

Proper post-harvest care and storage of your Brussels sprouts will ensure their longevity and maintain their fresh, nutty flavor. Follow these steps to achieve the best results:

Cleaning: After harvesting, remove any loose or yellowing leaves from the sprouts. Do not wash them until you're ready to use them; excess moisture can hasten spoilage.

Storing Fresh: Store the unwashed sprouts in a plastic bag in the crisper drawer of your refrigerator. They should keep for a few weeks if properly stored. Always remove any sprouts that show signs of going bad to prevent the spread of decay.

Freezing: If you have a bumper crop of Brussels sprouts, consider freezing them. First, blanch the sprouts by immersing them in boiling water for 3 minutes, then cool them quickly in ice water to halt the cooking process. Drain well, then pack into freezer bags or containers. Frozen Brussels sprouts can last up to a year.

Unique Qualities

Interestingly, Brussels sprouts have a unique quality when it comes to post-harvest storage: their flavor can actually improve after a frost. The cold can convert the starches in the sprouts into sugars, leading to a sweeter, milder taste. This means that you can enjoy fresh, delicious Brussels sprouts from your garden well into the colder months.

In the final section of this guide, we will recap the main points of the planting, growing, and harvesting process for Brussels sprouts, and encourage you to try your hand at growing these versatile and nutritious veggies.

Frequently Asked Questions (FAQ)

What are a few Brussel sprouts growing problems?

Growing Brussels sprouts can sometimes be a bit tricky, as they are susceptible to a range of common garden problems. Here are a few that you might encounter:

1. Pests: Brussels sprouts can be targeted by several pests, such as aphids, cabbage worms, slugs, and flea beetles. These pests can cause significant damage to the leaves, stunting the growth of the plant or even killing it.

2. Diseases: Brussels sprouts are prone to several diseases. These include black rot, clubroot, and powdery mildew. Black rot is a bacterial disease that causes yellowing and wilting of leaves, while clubroot causes swelling and distortion of the roots. Powdery mildew results in a white, powdery coating on leaves.

3. Nutrient Deficiencies: A lack of essential nutrients can cause a variety of problems for Brussels sprouts. For instance, a lack of nitrogen can result in stunted growth and yellowing leaves, while a lack of boron can lead to hollow stems and deformed sprouts.

4. Weather Conditions: Brussels sprouts prefer cooler temperatures and can struggle in hot, dry weather. Heat can cause the sprouts to open up and become bitter, while a lack of water can result in wilting and yellowing of leaves.

5. Spacing Issues: If plants are too close together, it can result in small, poorly formed sprouts due to competition for nutrients and water. The lack of air circulation can also increase the risk of disease.

how tall do brussel sprouts grow?

Brussels sprouts plants can grow quite tall, with many varieties reaching a height of 24 to 48 inches, or 2 to 4 feet. Some particularly robust and healthy plants might even reach a height of up to 3 feet or more. Each plant will typically produce numerous sprouts along its tall, thick stalk. It's essential to support these plants, especially in windy conditions, to prevent them from toppling over.

Recap and Final Thoughts: Time to Start Planting, Growing, and Harvesting Brussel sprouts

1. Growing Conditions: Brussels sprouts thrive in cooler climates, prefer full sun, and grow best in well-draining, fertile soil with a pH between 6.0 and 7.0.

2. Planting Time: The best time to plant Brussels sprouts is in early spring for a fall harvest or mid-summer for a winter harvest.

3. Seed Selection: Choose high-quality seeds or seedlings, and consider varieties that are disease-resistant and well-suited to your local climate.

4. Site Preparation: A well-prepared site includes the incorporation of organic matter into the soil to improve fertility and drainage.

5. Planting Process: Seeds or seedlings should be planted ½ inch deep and 12-24 inches apart, depending on the variety.

6. Watering and Fertilizing: Regular watering and application of a high-nitrogen fertilizer will support healthy growth.

7. Disease and Pest Control: Vigilance and early intervention can help control common pests and diseases that affect Brussels sprouts.

8. Harvesting: Harvest when sprouts are firm and about 1-2 inches in diameter, usually from the bottom of the stalk upwards.

9. Post-Harvest Care and Storage: Store unwashed sprouts in a plastic bag in the refrigerator, or blanch and freeze them for long-term storage.

Growing Brussels sprouts can be a rewarding venture. Not only will you have a fresh supply of these nutritious and flavorful veggies, but you'll also enjoy the satisfaction that comes from nurturing a plant from seed to harvest.

Remember that the beauty of gardening lies in its journey, not just the end result. Don't let the fear of failure deter you from starting. Even experienced gardeners face challenges and learn from their mistakes. So, get out there and start planting your Brussels sprouts!