Growing Collard Greens In Florida

Imagine enjoying a lush harvest of dark green leaves packed with vitamins and nutrients, all from your own garden. Collard greens, a member of the cabbage family, are a versatile and nutritious addition to any garden. In this guide, you’ll learn how to master growing collard greens, from planting to harvesting and everything in between.

Key Takeaways

  • Plant collard greens at the right time and location, with proper soil preparation for optimal growth.
  • Care for your collard greens by monitoring temperature, watering correctly and fertilizing appropriately.
  • Choose varieties suited to your garden’s needs while protecting them from pests and diseases for successful harvests.

Planting Collard Greens: The Basics

Well drained soil for planting collard greens

Understanding the planting basics, such as the appropriate time, location, and soil preparation, is key to successfully growing collard greens. Adhering to these fundamentals paves the way for a season-long harvest of delicious, tender collard greens.

Planting Time

Understanding the right time to plant collard greens is key to ensuring a successful harvest. These cool-season vegetables can be planted in early spring for an early summer harvest or late summer to early fall for a late fall harvest. In warmer climates, such as USDA hardiness zones 8 and higher, planting collard greens in the fall is particularly beneficial, as they develop a sweeter flavor when exposed to frost. Monitoring the temperature and shielding your plants from harsh conditions is important to prevent bolting and maintain optimal flavor.

Proper spacing is another important consideration when planting collard greens. It is recommended to space collard greens 18 to 24 inches apart, providing ample room for growth and airflow. Proper spacing allows for a healthier harvest and reduces the likelihood of pests and diseases.

Location Selection

Selecting an ideal location for your collard greens plays a significant role in their growth. Collard greens require at least 6 hours of direct sunlight daily to maintain their dark green leaves and tender texture. While they can tolerate partial shade, they should still receive a minimum of 4 hours of sunlight daily for optimal flavor.

Also, make sure your chosen location has soil that drains well to prevent waterlogging conditions that can cause root rot and other problems, while keeping the soil moist.

Soil Preparation

Soil preparation for your collard greens involves the following steps:

  1. Ensure that the soil is well-drained and remains moist.
  2. Enrich the soil with compost to provide essential nutrients.
  3. Aim for a slightly acidic soil with a pH level between 6.0 and 6.5.
  4. Make sure the soil is rich in organic matter to promote healthy growth.

By following these steps, you can create the ideal soil conditions to grow collard greens and ensure a rich harvest.

Before planting your collard greens, incorporate aged compost into the soil to improve its fertility and structure. Additionally, perform a soil pH test to ensure the proper pH level for optimal growth. With the right soil preparation, your collard greens will have a solid foundation for healthy growth.

Caring for Your Collard Greens

Watering collard greens in the garden

Good care of your collard greens involves appropriate watering methods, temperature management, and fertilization. Familiarity and application of these methods will result in a season-long harvest of nutritious collard greens.

Watering Techniques

Regular watering is key to maintaining healthy collard greens. Here are some tips to keep in mind:

  • Aim to provide 1-1.5 inches of water per week, ensuring the soil remains evenly moist but not waterlogged.
  • Overwatering can lead to root rot and other issues, so make sure your soil has effective drainage.
  • Watering in the morning allows the collard leaves to dry before nightfall, reducing the risk of diseases.

To help maintain soil moisture and ensure optimal growth for your humidity collard greens, consider adding a layer of mulch around your collard greens. Mulch keeps the soil cool and reduces moisture evaporation, allowing your plants to access water more efficiently. This practice also helps suppress weeds and adds organic matter to the soil as it breaks down.

Temperature Control

Collard greens thrive in cool-season conditions but can tolerate some warmth. The optimal temperature range for growing collards is between 45 to 85 degrees Fahrenheit. While they can withstand light frost, excessively warm temperatures can cause the plants to bolt or flower prematurely, affecting the flavor and texture of the leaves. To ensure the best results, plant your collard greens around the spring frost date.

Monitor the temperature in your garden and take appropriate measures to protect your collard greens from extreme cold or heat. In colder climates, consider using floating row covers or cold frames to extend the growing season and protect your plants from frost. In warmer climates, provide some shade during the hottest part of the day to prevent heat stress.

Fertilization Tips

Feeding your collard greens is necessary for their healthy growth and a continuous harvest. Apply composted manure or a slow-release fertilizer every 4-6 weeks to support your plants’ growth and ensure they continue to produce tasty leaves.

Before planting, it can be helpful to perform a soil test to determine the specific nutrient needs of your collard greens. Based on the test results, adjust your fertilization routine accordingly. Remember to follow the recommended application rates on the fertilizer label, as over-fertilization can lead to excessive leaf growth at the expense of flavor and texture.

Choosing the Right Collard Green Varieties

With a wide array of collard green varieties available, choosing the variety that suits your garden and taste preferences can be quite exhilarating. Collard greens can be categorized as either loose-leaf or loose head varieties, with both types offering similar flavor profiles and tender leaves.

Some popular collard green varieties include:

  • Top Bunch
  • Flash
  • Tiger
  • Morris Heading
  • Green Glaze

Heirloom varieties, such as those passed down through generations, offer unique flavors and characteristics, while hybrid varieties often provide improved disease resistance. Experimenting with different varieties can add diversity to your garden and allow you to discover new and delicious flavors.

Growing Collard Greens from Seed

Cultivating collard greens from seed is a gratifying process, yielding a fresh harvest from your own garden. You can start seeds indoors 4-6 weeks before transplanting young collard plants outdoors or direct sow them in your garden. Sow seeds at a depth of ¼-½ inch in soil enriched with organic matter and a pH level between 6.5 and 6.8.

Collard green seeds typically germinate in 4-7 days at a soil temperature of 65-75 degrees Fahrenheit. Once your seedlings have developed two sets of true leaves and outdoor temperatures are suitable, you can transplant them into your garden. Be sure to harden off your seedlings by gradually exposing them to outdoor conditions for a week before transplanting.

When transplanting seedlings, follow these steps:

  1. Space them 18-24 inches apart to promote healthy growth and airflow.
  2. Water your newly transplanted collard greens thoroughly.
  3. Provide them with a slow-release fertilizer or composted manure to support their growth.

Harvesting and Storing Collard Greens

Harvesting fresh collard greens

Proper harvesting and storage of your collard greens ensures they retain their flavor and freshness. The variety of collard greens determines how long they will take to be ready for harvest. Usually, it takes between 60-90 days when direct seeding. For optimal flavor, harvest collard greens grown in cooler climates, particularly after exposure to frost.

To harvest collard greens, follow these steps:

  1. Use a sharp knife or scissors to cut the outer leaves from the base of the plant, leaving the inner leaves to continue growing. This method allows for a continuous harvest throughout the growing season, making it easy to harvest collards.
  2. After harvesting, rinse the leaves thoroughly to remove any dirt or debris.
  3. Pat the leaves dry before using them in your recipes.

To store your harvested collard greens, wrap them in paper towels and place them in a sealed plastic bag in the refrigerator. Properly stored collard greens can last up to a week, providing you with a fresh supply of this nutritious vegetable.

Container Gardening: Growing Collard Greens in Pots

Container gardening with collard greens

Cultivating collard greens in containers offers a great alternative for those with limited garden space or those who prefer a more manageable gardening experience. Large containers, such as 12-inch diameter pots for one collard or 24-inch pots for two collards, are suitable for growing these leafy greens.

Use high-quality potting soil with good drainage and fertilize with a slow-release nitrogen fertilizer or water-soluble fertilizer at half the recommended strength. Provide your container-grown collard greens with at least 6 hours of direct sunlight daily and water them regularly, aiming for 1-1.5 inches of water per week. With proper care, you can enjoy a bountiful harvest of collard greens from your containers.

Protecting Collard Greens from Pests and Diseases

Organic pest control for collard greens

Like any garden vegetable, collard greens can be susceptible to pests and diseases. Common pests include:

  • Aphids
  • Thrips
  • Flea beetles
  • Cutworms
  • Cabbage loopers
  • Harlequin bugs

To protect your collard greens, monitor your collard greens growing plants regularly for signs of infestation, and practice good garden hygiene by removing any fallen leaves or debris that may harbor pests or diseases.

Implement preventative measures such as:

  • Crop rotation
  • Organic pest control methods like handpicking pests or using insecticidal soaps
  • Applying neem oil or other organic garden insecticides as a last resort

By preventing pests and diseases in your garden, you’ll ensure a healthy and productive crop of collard greens from your collard plants, benefiting the entire plant when you plant collards.

Troubleshooting Common Collard Green Problems

Despite your best efforts, collard greens may sometimes face challenges such as yellowing leaves or stunted growth. Yellowing leaves can be caused by aging, bolting, or diseases. To remedy this issue, provide proper care and maintenance, including adequate sunlight, proper watering, and disease management.

Stunted growth in collard greens can be caused by pests or improper care. Ensure your collard greens receive a consistent supply of water and apply composted manure or slow-release fertilizer every 4-6 weeks to promote growth. Additionally, use diatomaceous earth or other organic controls to manage pests like clubroot, which can cause stunted growth.

Saving Seeds and Propagating Collard Greens

Preserving seeds and propagating collard greens can ensure a steady supply of this nutritious vegetable. Here’s how to do it:

  1. Allow the seed pods to dry out until they are hard and brittle.
  2. Collect the pods between paper towels and apply pressure to break the pods and release the seeds.
  3. This is the best way to save your seeds.

Store collard green seeds in a cool, dry environment with low humidity, using airtight containers or sealed bags to prevent moisture infiltration. Collard green seeds can be stored for approximately two to three years for future plantings.

By saving and propagating your own collard greens, a member of the cabbage family, you can grow collards and enjoy a self-sustaining garden, passing on your favorite varieties to future generations.


Mastering the art of growing collard greens can provide you with a lush harvest of nutritious, dark green leaves. By following this step-by-step guide, you’ll learn the essentials of planting, caring for, and harvesting collard greens, as well as troubleshooting common problems and saving seeds for future plantings. With your newfound knowledge and skills, you can enjoy a continuous supply of this versatile and delicious vegetable in your own garden.

Frequently Asked Questions

What month do you plant collards?

You can plant collards in early spring and again in late summer or early fall. Direct seeding is best done during midsummer or early spring, while transplants should be set out in early spring or late summer.

Do collard greens grow back after cutting?

Collard greens can be harvested multiple times because they regrow when their stem is left intact. This results in a cut-and-come-again crop for weeks or even months.

Does collard greens grow better in sun or shade?

Collards grow best in full sun, however they can tolerate partial shade and still achieve their optimal flavor as long as they receive at least 4-5 hours of sun.

What is the optimal temperature range for growing collard greens?

For optimal growth, collard greens thrive best in temperatures between 45 and 85 degrees Fahrenheit.

How often should collard greens be watered?

For optimal growth, collard greens should be watered about once a week, providing 1-1.5 inches of water.

Posted by Amaral Farms

HI and thanks for visiting my blog. I guess I would say I have always been a gardener at heart. My parents gardened and I helped them from a young age. As an adult I took to the organic movement and began gardening using almost exclusively organic methods. My focus has shifted the last decade to add heirloom gardening to the mix. By no means an expert, I do enjoy it and spend at least a few hours a week dedicated to it. I hope you enjoy and gain some value from my blog. Check out my tips for growing tomatoes in pots.