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Home | Vegetables | Growing Swiss Chard in Pots: a Step-by-Step Growing Guide
  • Vegetables

Growing Swiss Chard in Pots: a Step-by-Step Growing Guide

  • Dina Davidov
  • 10 March 2025
Swiss Chard
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Want to grow Swiss chard in containers but not sure where to start? Whether you have a small balcony, a backyard patio, or just a sunny spot indoors, Swiss chard is one of the easiest and most rewarding leafy greens to grow in pots or raised containers. With its vibrant colors, fast growth, and ability to thrive in limited space, it’s a fantastic choice for gardeners of all levels.

Unlike other leafy greens that struggle in heat or require constant replanting, Swiss chard is a cut-and-come-again crop, meaning you can harvest leaves repeatedly without killing the plant. It adapts well to various climates, tolerates light frost, and provides a continuous supply of nutrient-rich greens with minimal effort. Plus, its bold red, yellow, and orange stems add a striking visual element to any container garden.

This guide will walk you through everything you need to know about growing Swiss chard in pots, from setting up the perfect container garden to keeping your plants thriving and producing for months. Whether you’re a beginner or an experienced gardener, you’ll find practical tips and expert advice to help you grow healthy, productive Swiss chard plants no matter where you garden.

Table of Contents Show
  1. 🛠️Essential Tools and Suppliesfor Growing Swiss Chard in Containers
  2. Best Swiss Chard Varieties for Containers
  3. Best Growing Conditions for Swiss Chard
  4. Choosing the Right Container for Swiss Chard
  5. The Best Soil for Growing Swiss Chard in Containers
  6. Planting Swiss Chard from Seed
  7. Thinning Swiss Chard Seedlings: Snip or Transplant?
  8. Transplanting Swiss Chard into Containers
  9. Caring for Swiss Chard in Containers
    1. 💧Watering
    2. 🍂Fertilizing (optional)
    3. ☀️Sunlight Needs
    4. 🐛Managing Pests and Diseases
  10. Harvesting Swiss Chard
    1. When to Harvest Swiss Chard
    2. How to Harvest Swiss Chard Properly
  11. Did You Know? Fun Facts About Swiss Chard
  12. FAQs About Growing Swiss Chard in Containers
  13. Related Guides to Check Out

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🛠️Essential Tools and Supplies
for Growing Swiss Chard in Containers

  • Containers with Drainage – At least 10–12 inches deep, with drainage holes to prevent waterlogging. Fabric Grow Bags, plastic pots, or ceramic containers all work well.
  • High-Quality Potting Mix
  • Spray Bottle and Watering Can
  • Pruning Shears or Scissors
  • Plant Labels (Optional) – Useful for tracking varieties and planting dates.

Best Swiss Chard Varieties for Containers

Swiss Chard

Choosing the right variety ensures a productive and visually appealing harvest. Some excellent container-friendly options include:

  • Bright Lights’ – A stunning mix of red, yellow, pink, and orange-stemmed plants.
  • Fordhook Giant’ – A classic variety with thick green leaves and robust growth.
  • Ruby Red’ – Deep red stems with dark green leaves, offering a striking contrast in any container.

These varieties mature quickly and produce continuously, making them ideal for small-space gardening.

Best Growing Conditions for Swiss Chard

Swiss chard is a hardy and adaptable green, but providing the right growing conditions ensures vigorous growth and continuous harvests. When growing in containers, maintaining proper temperature, sunlight exposure, and watering is essential for healthy plants and flavorful leaves.

Light Requirements

☀️

6–8 hours of direct sunlight per day

Water Requirements

💧

Evenly moist,
but not waterlogged

Temperature

🌡️

50–75°F (10–24°C)

Light
Requirements

☀️

6–8 hours of direct sunlight per day

Water
Requirements

💧

Evenly moist,
but not waterlogged

Temperature

🌡️

50–75°F (10–24°C)

Choosing the Right Container for Swiss Chard

  • Depth: A 10- to 12-inch-deep container is best for mature plants, while a 8-inch pot is fine for baby greens.
  • Material: Fabric grow bags, plastic pots, or ceramic containers all work well.
  • Drainage: Ensure your container has drainage holes to prevent root rot.

The Best Soil for Growing Swiss Chard in Containers

Swiss chard thrives in rich, well-draining soil that retains moisture while allowing excess water to escape. A high-quality potting mix is essential, as garden soil can become compacted in containers and restrict root growth.

Swiss Chard

If you’re looking to create a custom soil blend tailored for container gardening, check out this guide on How to Make Your Own Potting Mix for an easy, nutrient-rich recipe.

For the best results, use a soil blend that includes organic matter, aeration components, and nutrients. A mixture of potting soil, compost, and perlite ensures that the roots receive ample oxygen and nutrients. The ideal pH level for Swiss chard is between 6.0 and 7.0, which provides the best conditions for nutrient absorption. If the soil is too acidic, adding lime can help balance it, while peat moss can lower alkalinity if needed.

To maintain soil health throughout the growing season, top-dressing with compost or organic fertilizer every few weeks replenishes nutrients and encourages continuous leaf production.

Planting Swiss Chard from Seed

Swiss chard seeds are technically seed clusters, meaning that each “seed” you plant can produce multiple sprouts. To avoid overcrowding and competition for nutrients, it’s best to pre-germinate them in seed trays and separate them later.

Swiss Chard
  • Fill a seed-starting tray with light, well-draining potting mix. If you prefer to make your own, check out our guide on how to make your own potting mix for an ideal blend.
  • Soak the seeds in water for a few hours before planting to soften the outer coating and speed up germination.
  • Plant each seed cluster about ½ inch deep, covering lightly with soil.
  • Water gently using a spray bottle or fine mist sprayer to keep the soil evenly moist without disturbing the seeds.
  • Place the tray in a warm, bright spot (around 65–75°F or 18–24°C).
Swiss Chard

Within 5-10 days, tiny Swiss chard seedlings will start to emerge. Since each seed cluster produces multiple sprouts, thinning them out ensures stronger plants.

Swiss Chard

Thinning Swiss Chard Seedlings: Snip or Transplant?

Once Swiss chard seedlings emerge, you’ll likely notice that multiple sprouts come up from a single seed cluster. Since overcrowded plants compete for nutrients, water, and space, thinning them out is necessary to allow the strongest seedlings to thrive.

Swiss Chard

There are two ways to thin Swiss chard seedlings:

  1. Snipping the weaker sprouts at the soil level – This method is preferred because it prevents root disturbance and allows the remaining seedlings to continue growing without competition. Simply use sharp scissors to cut the smaller seedlings at their base, leaving about 4-6 inches of space between plants.
  2. Transplanting extra seedlings – If you don’t want to waste healthy seedlings, you can carefully lift and replant them in another container. This works best if the seedlings are still small (1-2 inches tall) and the soil is moist, which helps reduce transplant shock.

Whichever method you choose, don’t discard the seedlings you remove—Swiss chard microgreens are edible and packed with nutrients! Instead of throwing them away, enjoy them in salads, smoothies, or as a garnish for various dishes.

Swiss Chard

If you’re interested in growing other nutrient-rich microgreens, check out this guide on How to Grow Broccoli Microgreens at Home Using a Soil-Free Method. You can apply the same technique to Swiss chard microgreens for an easy, fresh harvest.

Transplanting Swiss Chard into Containers

Swiss Chard

Once your Swiss chard seedlings reach about 3-4 inches tall and have developed their first true leaves, they are ready to be transplanted into their final container. At this stage, they are strong enough to handle the move but still young enough to adapt quickly to their new environment.

To transplant successfully, start by preparing the container. Fill it with moist, nutrient-rich potting mix, leaving about an inch of space from the rim. Make a hole slightly larger than the seedling’s root system, ensuring there’s enough depth for the roots to spread comfortably. Gently remove the seedling from the tray, being careful not to damage the roots.

Swiss Chard

Once placed in the hole, firm the soil gently around the base of the seedling and water immediately to help it settle.

Tip: Keep the newly transplanted seedlings in a shaded area for the first day or two to help them adjust before exposing them to full sunlight.

Caring for Swiss Chard in Containers

Swiss chard is a low-maintenance crop, but following these care tips will maximize your harvest.

Swiss Chard

💧Watering

  • Water deeply 1-2 times per week, keeping soil evenly moist but not waterlogged.
  • In hot climates, check containers daily to prevent drying out.
  • Using mulch (straw, dry leaves, or coconut coir) helps retain moisture.

🍂Fertilizing (optional)

  • Apply a balanced organic fertilizer every 3-4 weeks to support leafy growth.
  • If leaves appear pale or yellow, add a nitrogen-rich fertilizer to boost vigor.

☀️Sunlight Needs

  • Swiss chard thrives in 6-8 hours of full sun daily.
  • In hotter regions, provide afternoon shade to prevent heat stress.

🐛Managing Pests and Diseases

  • Aphids & Leaf Miners: Remove affected leaves and apply neem oil or insecticidal soap.
  • Powdery Mildew: Ensure good air circulation and avoid overhead watering.
  • Snails & Slugs: Use diatomaceous earth or hand-pick pests at night.
Swiss Chard

Harvesting Swiss Chard

Swiss chard is a cut-and-come-again crop, meaning you can harvest leaves while allowing the plant to keep producing for months. Proper harvesting not only ensures a steady supply of fresh greens but also encourages the plant to grow more vigorously.

When to Harvest Swiss Chard

Swiss chard can be harvested at different stages, depending on how you plan to use it:

  • Baby leaves (great for salads) can be picked as early as 25–30 days after planting, when they reach about 4–6 inches (10–15 cm) in length.
  • Mature leaves (ideal for cooking) are ready in 50–60 days, when they reach 8–12 inches (20–30 cm) in length.
  • Continuous harvesting prevents the plant from becoming too large and helps maintain tender, flavorful leaves.
Swiss Chard

How to Harvest Swiss Chard Properly

To keep Swiss chard productive, harvest only the outer leaves, leaving the central growing point intact. Use sharp scissors or pruning shears to cut leaves 1–2 inches above the soil level. Avoid pulling or tearing leaves, as this can damage the plant.

If you want to extend the growing season and maximize yield, pick leaves regularly rather than letting them grow too large. Older leaves can become tough and bitter, while young leaves remain tender and sweet. Harvesting once or twice a week ensures continuous regrowth and encourages new leaf production.

With the right harvesting approach, Swiss chard can continue producing for 6 months or longer, providing a steady supply of nutritious greens for your meals.

Swiss Chard

Did You Know? Fun Facts About Swiss Chard

Swiss chard has a fascinating history and some unique characteristics that set it apart from other leafy greens:

  • Not Actually Swiss! Despite its name, Swiss chard isn’t native to Switzerland. It was named by a Swiss botanist, but the plant originates from the Mediterranean.
  • A Relative of Beets – Swiss chard and beets belong to the same plant family (Beta vulgaris). While beets develop edible roots, chard is grown primarily for its large, flavorful leaves and colorful stems.
  • Ancient Superfood – The ancient Greeks and Romans valued Swiss chard for its nutritional benefits and often used it as a medicinal plant.
  • Cold-Hardy and Heat-Tolerant – Unlike spinach, which bolts in warm weather, Swiss chard can survive both mild frosts and summer heat, making it one of the most versatile greens to grow.

FAQs About Growing Swiss Chard in Containers

Can Swiss chard survive winter in containers?

Yes! In mild climates (Zones 7-10), Swiss chard can survive winter with light frost protection. In colder zones, bring containers indoors or cover them with row covers to extend the season.

Does Swiss chard regrow after cutting?

Yes. Swiss chard is a perennial in mild climates and will continue producing leaves after cutting, provided the growing conditions remain favorable.

Why are my Swiss chard leaves turning yellow?

Yellowing leaves may indicate overwatering, poor drainage, or nutrient deficiencies. Check soil moisture and fertilize regularly with a balanced organic mix.

Can I grow Swiss chard indoors?

Yes. Swiss chard grows well under grow lights or near a bright south-facing window. Use a deep container and keep the soil moist but not soggy.

Related Guides to Check Out

Want to grow more leafy greens? These guides will help:

  • Growing Arugula (Rocket Salad) in Pots: From Seed to Harvest – A fast-growing leafy green with a peppery kick, perfect for salads and sandwiches.
  • Growing Romaine Lettuce from Seed in Egg Carton Trays: An Easy and Eco-Friendly Guide – A beginner-friendly method to start crisp, homegrown romaine lettuce while reducing waste.
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