top of page

How to Plant, Grow, and Harvest Swiss Chard


growing swiss chard

Swiss chard, scientifically known as Beta vulgaris subsp. cicla, is a leafy green vegetable that's a staple in Mediterranean cuisine and is growing in popularity around the world. This robust plant boasts vibrant stems that range in colors from green, red, purple to yellow, lending a delightful splash of color to any garden and plate.


There are several varieties of Swiss chard, but the most popular include Fordhook Giant, Bright Lights, and Rhubarb Chard. All these types bring their unique characteristics, with differences lying mainly in the color of their stems.


Swiss chard is not only a tasty addition to a multitude of dishes but also a powerhouse of nutrition. It's packed with vitamins A, C, and K, and is an excellent source of magnesium, potassium, and iron. It's also high in dietary fiber, which can aid in digestion.


Growing Swiss chard in your garden can be an exciting and rewarding venture. Its stunning color, large, glossy leaves, and resilience make it a delightful addition to any home garden. Plus, it's a cut-and-come-again crop, meaning you can harvest leaves as you need them, and the plant will continue to grow, providing a long season of harvest.


In the upcoming sections, we'll guide you through how to plant, grow, and harvest Swiss chard in your garden, ensuring you can enjoy this nutritious and visually appealing vegetable right from your backyard.



Optimal Growing Conditions for Swiss Chard: Climate, Sunlight, and Soil Requirements


Swiss chard is a cool-weather crop that is resilient and adaptable, making it an excellent choice for novice and experienced gardeners alike. To ensure optimal growth, there are a few key conditions to keep in mind:


1. Climate: Swiss chard thrives in cool weather and can be grown as both a spring and fall crop in most regions. It handles frost well and can even withstand temperatures as low as 15°F. When the temperature rises, the plant may bolt or go to seed, but unlike other greens, the leaves remain tender and tasty.


2. Sunlight: Swiss chard requires full sun to part shade. It should get at least 5 hours of sunlight per day. In hotter climates, a bit of afternoon shade can help prevent the plant from bolting.


3. Soil: Swiss chard prefers well-drained, fertile soil with a pH between 6.0 and 7.0. The soil should be rich in organic matter for optimal growth. Adding compost or well-rotted manure to your garden bed can enhance the soil's fertility and encourage vigorous growth.


4. Space: Swiss chard needs room to grow. Plants should be spaced about 12 to 18 inches apart. This allows enough space for the plants to mature and provides good airflow, which can help prevent disease.


With these conditions in mind, you can create an optimal environment for your Swiss chard to flourish. Remember, each garden is unique, and what works best may vary based on your specific climate and growing conditions. As with any gardening venture, it's all about observing, learning, and adjusting as necessary.



Step-by-step Guide to Planting Swiss Chard


growing swiss chard

When to Plant: Best Time of the Year for Planting Swiss Chard


Swiss chard is a versatile crop that is valued for its ability to grow in various seasons, making it a fantastic addition to any garden. Here is a guide to understanding the best times to plant Swiss chard:


1. Spring Planting: Start sowing Swiss chard seeds as soon as the soil is workable in the spring, usually 2-3 weeks before the last expected frost. Swiss chard can handle a bit of chill, and a spring planting will provide you with a harvest throughout the summer.


2. Summer Planting: Swiss chard is relatively heat-tolerant for a cool-weather crop, so it can also be planted in midsummer for a fall harvest. If you live in an area with hot summers, provide the plants with some shade or mulch around them to keep the soil cool and moist.


3. Fall Planting: In mild winter areas, Swiss chard can be planted in late summer to early fall for a winter harvest. This crop is frost-tolerant and can be harvested well into the winter months in such regions.


Keep in mind that Swiss chard, like other leafy greens, can bolt or go to seed quickly in hot weather, but even then, unlike other crops, the leaves stay edible and maintain their flavor.

By timing your plantings, you can enjoy fresh Swiss chard from your garden throughout much of the year.


It's also worth noting that Swiss chard is a cut-and-come-again crop, meaning that you can harvest the outer leaves while allowing the center of the plant to continue producing, extending your harvest season even more.


Seed Selection: Choosing the Right Seeds for Your Garden


Choosing the right seeds for your Swiss chard garden is crucial in ensuring a successful and vibrant harvest. The following considerations should guide your seed selection process:


1. Variety Selection: Swiss chard comes in a range of beautiful colors, from deep greens to vibrant reds, yellows, and oranges. Each variety has a slightly different taste and texture. Some popular varieties include:

  • Bright Lights: This variety offers stems in a rainbow of colors including gold, pink, orange, purple, red, and white. It's as attractive in the garden as it is on the plate.

  • Fordhook Giant: Known for its large, robust, dark green leaves and thick white stems, this variety is ideal for those who want a hearty green for cooking.

  • Ruby Red/Rhubarb Chard: This variety is known for its stunning bright red stems and dark green, red-veined leaves.

2. Seed Quality: Always purchase your seeds from a reputable seed supplier. Quality seeds are critical for germination and healthy growth of your plants. Look for seeds that are organic, non-GMO, and untreated.


3. Planting Location: Choose a Swiss chard variety that suits your specific garden conditions. All types of Swiss chard need plenty of sunlight but consider whether your chosen variety is particularly heat-tolerant if your garden gets a lot of sun, or cold-tolerant if you're growing in cooler conditions.


Once you've selected the right Swiss chard seeds for your garden, you can look forward to a bountiful harvest of this nutritious and colorful vegetable. Whether you're adding it to salads, sautéing it for a side dish, or using it in soups, Swiss chard is a versatile addition to your culinary repertoire.



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


growing swiss chard

Choosing and preparing the right site for planting Swiss chard can set the foundation for a thriving crop. Here are the essential steps to get your garden bed or pot ready for planting:


1. Location Selection: Swiss chard prefers a sunny spot in the garden but can tolerate partial shade. It’s a good neighbor plant, so it can be grown next to many other veggies. For container growing, choose a pot that's at least 12 inches in diameter and depth to give the roots plenty of room.


2. Soil Preparation: Swiss chard thrives in well-drained soil with a pH of 6.0 to 7.0. It's a heavy feeder, so enrich the soil with plenty of organic matter like well-rotted compost or aged manure before planting. This will also help to improve the soil structure and drainage.


3. Bed or Pot Preparation: For garden beds, loosen the soil to a depth of at least 12 inches to encourage good root growth and remove any weeds or stones. If you're using pots, ensure they have adequate drainage holes and fill them with a mix of potting soil and compost.


4. Layout Planning: Plan your layout based on the number of plants you want to grow. Swiss chard plants should be spaced about 12 inches apart to allow them ample room to grow. If you're planting in rows, make the rows 18 to 24 inches apart.


5. Watering: Before planting, moisten the soil or potting mix thoroughly but ensure it’s not waterlogged. A moist (not soggy) soil environment is ideal for Swiss chard seeds to germinate.


By taking the time to prepare your garden bed or pot carefully, you're setting the stage for your Swiss chard plants to thrive. With the right location, soil preparation, and layout, your Swiss chard will be well on its way to providing you with a colorful and nutritious harvest.



Planting Process: Detailed Steps on How to Plant Seeds or Seedlings


Planting Swiss chard, whether from seed or seedlings, is a simple and straightforward process. Here, we'll break down the steps you need to follow to ensure your plants get off to the best possible start.


1. Planting Seeds


Step 1: Start by making holes in the prepared soil or potting mix about half an inch deep and 12 inches apart. If you're planting in rows, these should be 18 to 24 inches apart.


Step 2: Place two or three seeds in each hole. Swiss chard seeds are actually clusters of seeds, so this will increase your chances of successful germination.


Step 3: Cover the seeds lightly with soil and water them gently but thoroughly. The soil should remain moist until the seeds have germinated.


Step 4: Seedlings should appear in about 5 to 7 days. Once the seedlings are about 3 inches tall, thin them out so that you have one strong plant every 12 inches.


2. Planting Seedlings


Step 1: If you have purchased Swiss chard seedlings or started seeds indoors, you can transplant them to your garden bed or pot once the risk of frost has passed and they're about 3 to 4 inches tall.


Step 2: Dig a hole in the prepared soil or potting mix that's big enough to accommodate the root ball of your seedling. The holes should be spaced about 12 inches apart.


Step 3: Carefully remove the seedling from its original pot, making sure to preserve the root ball. Place it in the hole and cover the roots with soil. The top of the root ball should be level with the surface of the soil.


Step 4: Water the seedlings well after planting. Keep the soil evenly moist as the young plants establish themselves.


Whether you're starting from seeds or seedlings, it's important to keep an eye on your Swiss chard as it grows. Ensure it gets enough water, especially in dry conditions, and watch out for any signs of pests or diseases. With proper care, you'll soon have a crop of Swiss chard ready to harvest and enjoy.



Care for Growing Swiss Chard


growing swiss chard

Watering: How Often and How Much to Water the Plants


Swiss chard is a relatively resilient vegetable, but like all plants, it thrives best with consistent and appropriate watering. Providing the right amount of water is essential for the plant's overall health and for producing succulent, tender leaves.


1. Watering Frequency

Water your Swiss chard plants regularly, aiming for at least once a week. However, the exact frequency will depend on your local climate and soil type. If you're experiencing a particularly dry spell or if your soil drains quickly, you may need to water more often.


A simple way to check if your plants need water is by sticking your finger an inch into the soil near the plant. If it feels dry, it's time to water.


2. Amount of Water

When watering, aim to thoroughly soak the soil around the base of the plant. A deep watering encourages the development of a robust root system and is more effective than frequent light watering, which can lead to shallow root growth.


On average, Swiss chard plants need about 1 to 1.5 inches of water per week, including rainfall. If you're not sure whether you're providing enough water, a simple rain gauge can help you keep track of water levels.


3. Best Time to Water

Watering in the morning is best because it allows any excess moisture on the plant leaves to evaporate during the day, reducing the risk of fungal diseases. If morning watering isn't possible, late afternoon is the second-best option.


Remember, while Swiss chard is a sturdy plant, it's not impervious to overwatering. Soggy soil can lead to root diseases and is just as detrimental as underwatering. Striking the right balance is key to healthy, productive Swiss chard plants.



Fertilizing: The Type of Fertilizer Needed and How to Apply It


Fertilizer is like food for your plants, providing them with the necessary nutrients they need to grow robust and healthy. Swiss chard, while not overly demanding in its nutrient needs, will definitely benefit from regular fertilizing.


1. Type of Fertilizer

For Swiss chard, a balanced vegetable or general-purpose fertilizer, with equal proportions of Nitrogen (N), Phosphorus (P), and Potassium (K), is ideal. An example is a 10-10-10 or 14-14-14 formulation.


Organic options like compost or well-rotted manure are also great choices. If you prefer organic fertilizers, a combination of blood meal and bone meal can provide a good balance of nutrients.


2. Application Frequency and Method

Before planting, enrich the soil with compost or a slow-release granular fertilizer, mixing it well into the soil. This will provide a nutrient-rich base for your plants to start from.


Once the Swiss chard plants are about 4 to 6 inches tall, you can begin side-dressing with additional fertilizer. Side-dressing refers to applying fertilizer around the base of the plant, away from the stem to avoid burning it. Repeat this every 4-6 weeks throughout the growing season.


If you're using liquid fertilizer, follow the package instructions for dilution and application rates. Typically, liquid fertilizers are applied more frequently, usually every 2-3 weeks.

Remember, while fertilizing is beneficial, over-fertilizing can lead to lush foliage but poor leaf quality. So, less is more when it comes to feeding your Swiss chard plants.


3. Consider the Soil

Before applying any fertilizer, it's advisable to conduct a soil test. This will let you know what nutrients your soil is deficient in, allowing you to choose a fertilizer that can best address these needs.


With the right fertilizing strategy, you can look forward to a bountiful harvest of Swiss chard, bursting with health and flavor.



Disease and Pest Control: Common Diseases and Pests that can Affect Swiss Chard and How to Manage Them


Like all plants, Swiss chard can be susceptible to certain diseases and pests. However, with vigilant observation and preventative measures, you can keep these issues at bay.


1. Diseases

The most common diseases that affect Swiss chard include leaf spots and fungal infections, such as downy mildew and Cercospora leaf spot.


Leaf Spots and Fungal Infections: These diseases typically present as yellowing leaves, wilting, or spots on the leaves. Prevention is key, so ensure good air circulation, avoid overhead watering, and don't crowd your plants. If you notice these symptoms, remove and dispose of affected leaves, and treat the plant with a fungicide if necessary.


2. Pests

Common pests that can affect Swiss chard include aphids, leaf miners, and slugs.


Aphids: These tiny insects suck the sap from the plant, which can result in yellow, curled leaves. Aphids can be washed off with a strong stream of water or controlled with insecticidal soap or neem oil.


Leaf Miners: These insects lay their eggs on the underside of the leaves, and the larvae tunnel through the leaves, causing significant damage. The best control method is to remove affected leaves and dispose of them properly.


Slugs: These pests are particularly fond of young, tender leaves. Handpicking can be effective if the infestation is small. For larger populations, consider using a natural slug bait or creating barriers with diatomaceous earth or copper tape.


3. Integrated Pest Management

An integrated pest management (IPM) approach can be highly effective for Swiss chard. This involves a combination of strategies, such as introducing beneficial insects that prey on harmful pests, rotating crops to disrupt the life cycles of pests and diseases, and keeping the garden clean of plant debris that can harbor pests and diseases.


By being observant and proactive, you can address any issues at their onset, ensuring your Swiss chard plants stay healthy and productive. Remember, healthy plants are the best defense against diseases and pests, so providing optimal growing conditions is the first step towards effective disease and pest control.



Harvesting Swiss Chard


growing swiss chard

When to Harvest: Identifying Signs that Swiss Chard is Ready for Harvesting


Knowing when to harvest your Swiss chard can make all the difference in the quality and taste of your yield. Thankfully, Swiss chard is quite forgiving, and it can be harvested over a wide window of time. Here's what you need to know to time your Swiss chard harvest perfectly.


1. Timing is Key

Swiss chard is a "cut-and-come-again" crop, meaning you can harvest leaves as you need them rather than waiting for the entire plant to mature. In fact, younger leaves tend to be more tender and less bitter than their older counterparts. Generally, you can begin harvesting Swiss chard about 25-50 days after planting, depending on the variety.


2. Look at the Leaf Size

The size of the leaves is a good indicator of when to start harvesting. You can begin to harvest Swiss chard when the leaves are about 3-6 inches long for a more tender taste. For larger, more mature leaves, wait until they reach about 10-12 inches long. Remember to pick the outer leaves first, allowing the inner ones to continue growing.


3. Color and Texture

The leaves should be vibrant in color, whether they are green, red, or rainbow, depending on the variety you're growing. They should also feel firm and crisp. The stalks, which are also edible, should be glossy and unblemished.


4. Regular Harvesting Promotes Growth

Swiss chard will keep producing new leaves if you harvest regularly. Regular harvesting encourages the growth of new leaves and prolongs the productive life of the plant.

So, keep these tips in mind, and you'll always know when it's time to step into your garden with your harvesting basket. Happy harvesting!



How to Harvest: Techniques for Harvesting Swiss Chard to Prevent Damage to the Plant


Once your Swiss chard is ready for harvest, it's essential to employ proper harvesting techniques to ensure the plant continues to grow and produce. This section will guide you through the best practices for harvesting Swiss chard without causing damage to the plant.


1. Use the Right Tools

You can often harvest Swiss chard by hand, especially when picking young, tender leaves. However, for larger and more mature leaves, it is recommended to use a pair of sharp garden scissors or pruning shears. This will provide a cleaner cut and lessen the chance of damaging the plant.


2. Harvest from the Outside In

When harvesting Swiss chard, always pick from the outside of the plant first. These leaves are the oldest and most mature, while the inner leaves are still developing. By doing this, you allow the younger leaves more time to grow, prolonging the productive life of the plant.


3. Cut, Don’t Pull

Pulling the leaves can cause damage to the plant and the root system. Instead, cut the leaves at the base of the stem, about 1-2 inches above the ground. This encourages new growth and ensures that the plant remains healthy and vigorous.


4. Harvest Regularly

Swiss chard is a "cut-and-come-again" plant, meaning it will continue to produce leaves if regularly harvested. Try to harvest your Swiss chard every 1-2 weeks during the growing season to encourage continuous growth and production.


5. Don’t Harvest Too Much at Once

It's important not to harvest more than one-third of the plant at a time to avoid stressing the plant and potentially stunting its growth. Leave enough leaves for photosynthesis so the plant can continue to thrive.


By adhering to these harvesting techniques, you'll ensure the health and longevity of your Swiss chard plants, providing you with a steady supply of this nutritious leafy green throughout the growing season. Happy harvesting!



Post-Harvest Care and Storage: How to Store and Preserve Swiss Chard for Maximum Freshness and Longevity


After carefully harvesting your Swiss chard, proper post-harvest care and storage are crucial for maintaining the leafy green's freshness and maximizing its shelf life. This section will guide you through the necessary steps to keep your Swiss chard crisp and flavorful for longer.


1. Cleaning the Swiss Chard

Before storage, gently wash your harvested Swiss chard to remove any dirt or insects. Do this under cool running water, making sure not to damage the leaves or stems. Once washed, lightly pat the leaves dry with a clean towel to remove any excess moisture.


2. Storing in the Refrigerator

For short-term storage, Swiss chard can be kept in the refrigerator. To do this, wrap the chard loosely in a damp paper towel and place it in a plastic bag. Do not completely seal the bag; instead, leave a small opening to allow some airflow. Stored this way, your Swiss chard can remain fresh for up to two weeks in the refrigerator.


3. Freezing for Longer Storage

If you've harvested more Swiss chard than you can use right away, consider freezing it for long-term storage. Firstly, blanch the leaves by submerging them in boiling water for 2 minutes and then immediately plunging them into an ice bath to stop the cooking process.


After drying, place the leaves in freezer-safe bags and store them in the freezer. Properly frozen Swiss chard can last up to a year while maintaining most of its nutritional content.


4. Cooking and Preserving

Swiss chard is a versatile green that can be used in various dishes. It can be sautéed, baked, or added to soups and stews. For preserving, Swiss chard can be pickled or used in canning recipes, extending its shelf life and offering unique ways to enjoy your harvest.


5. Regular Checks

Whether in the refrigerator or freezer, make sure to check your stored Swiss chard regularly for any signs of spoilage, such as changes in color or odor. This way, you can enjoy your harvest while it's still fresh and nutritious.


With these post-harvest care and storage tips, you can enjoy the fruits of your Swiss chard harvest for much longer, ensuring that none of your hard work goes to waste!



Frequently Asked Questions (FAQ)


How long does Swiss chard take to grow?

Swiss chard typically takes around 50 to 60 days from planting to reach maturity, at which point it's ready for harvesting. However, you can begin harvesting the leaves as soon as they're large enough to eat, which is usually when they're about 3 to 5 inches long. This can often be as early as 25 to 30 days after planting.

How to store Swiss chard?

Storing Swiss chard properly can help retain its freshness and nutritional quality. Here are some steps to store Swiss chard:


1. Do Not Wash Before Storing: Avoid washing Swiss chard before storing it in the refrigerator as moisture can accelerate spoilage. It's better to wash it just before you're ready to use it.


2. Wrap in Paper Towels: Wrap the Swiss chard in a dry paper towel. This helps to absorb any extra moisture and keeps the chard crisp.


3. Place in a Plastic Bag: Put the wrapped Swiss chard in a perforated plastic bag. You can create small holes in the bag to allow some air flow.


4. Store in the Refrigerator: Store the bag in the crisper drawer of your refrigerator.


5. Check Regularly: Swiss chard usually keeps for about 5 to 7 days, but it's a good idea to check it regularly and remove any leaves that are starting to wilt or discolor to prevent the spoilage from spreading.



Recap and Final Thoughts: Time to Start Planting, Growing, and Harvesting Swiss chard


Congratulations! You've journeyed through our comprehensive guide on how to plant, grow, and harvest Swiss chard. This leafy green not only offers a rich source of nutrients but also adds vibrant colors to your garden and meals. Let's revisit the crucial points covered in the guide.


1. Optimal Growing Conditions for Swiss Chard: Swiss chard thrives in full sun to partial shade, prefers well-drained soil rich in organic matter, and does well in a pH range of 6.0 to 7.0.


2. When to Plant: You can start planting Swiss chard as soon as the last spring frost has passed and continue successive plantings every 2-3 weeks for a continuous harvest.


3. Seed Selection: Choose high-quality seeds from a reputable source, taking into consideration the different varieties of Swiss chard available, such as Fordhook Giant, Bright Lights, and Ruby Red.


4. Site Preparation: Prepare the planting site by removing any weeds or debris and enriching the soil with compost or well-rotted manure.


5. Planting Process: Plant seeds about half an inch deep and 3-6 inches apart. For seedlings, plant them at the same depth they were growing in their pots.