When To Plant Collard Greens In Florida

If you’re wondering when to plant collard greens in Florida, you’re in the right place. Getting the timing right is the single most important step for a great harvest in our unique climate.

Florida’s long growing season is a big advantage for collard lovers. But our heat and humidity require a specific schedule. This guide gives you the clear, simple timing and tips you need for success.

Collard greens are a cool-season crop that thrives in Florida’s milder months. They grow best when planted for harvest in fall, winter, and early spring. The key is to avoid the intense summer heat, which can make them bitter and cause them to bolt, or go to seed.

For most of Florida, you have two main planting windows:

Late Summer to Early Fall (August – October): This is the primary planting time. Getting plants established in late summer allows them to mature during the cool fall and winter. This often yields the sweetest leaves, especially after a light frost.
Late Winter to Early Spring (January – March): A second planting can be done in late winter for a spring harvest. You must get these in early enough to mature before the heat of late spring and summer arrives.

Florida Planting Dates by Region

Florida is divided into three USDA plant hardiness zones, and your specific location refines the timing further.

North Florida (Zones 8a-9a)

This region gets the coolest winters. Plant from mid-August through September for a fall harvest. You can do a second planting in February for a late spring crop. Frosts will actually improve the flavor here.

Central Florida (Zones 9b-10a)

This is prime collard territory. The optimal planting period runs from September through February. You can succession plant every few weeks during this window for a continuous supply. The mild winters allow for fantastic growth.

South Florida (Zones 10b-11)

Winters are very mild and summers are long and hot. The best time to plant is during the coolest months, from October through January. Focus on getting your crop to mature before the humidity and heat of April and May.

How to Plant Collard Greens Successfully

Once you have your timing down, follow these steps to get your plants off to a strong start.

1. Choosing the Right Location and Soil

Collards need full sun, at least 6 hours of direct sunlight daily. They can tolerate partial afternoon shade in hotter areas. The soil should be rich and well-draining. Florida’s sandy soil needs improvement.

Work in 3-4 inches of compost or well-rotted manure into the top 6-8 inches of soil.
Aim for a soil pH between 6.0 and 6.8. A simple soil test can confirm this.
Raised beds are an excellent option for ensuring good drainage and soil control.

2. Starting from Seeds vs. Transplants

You can start collards either way. Seeds are more economical and offer more variety. Transplants give you a head start, which is helpful if you miss the ideal seed-starting date.

Direct Seeding:

Sow seeds ¼ to ½ inch deep.
Space them about 3 inches apart in rows 18-24 inches apart.
Once seedlings are 3-4 inches tall, thin them to 12-18 inches apart. You can eat the thinned seedlings!

Using Transplants:

Choose sturdy, healthy plants from your local nursery.
Space them 12-18 inches apart in the garden.
Plant them at the same depth they were growing in their container.

3. Watering and Fertilizing Basics

Consistent care keeps your plants productive and healthy.

Watering: Provide 1-1.5 inches of water per week. Water deeply at the base of the plants to encourage strong roots. Drip irrigation or soaker hoses are ideal to keep leaves dry and prevent disease.
Fertilizing: At planting, use a balanced organic fertilizer. Side-dress the plants with a nitrogen-rich fertilizer (like blood meal or a balanced blend) every 4-6 weeks to support leaf growth. Don’t over-fertilize, as this can harm flavor.

Common Pests and Problems in Florida

Being proactive is the best defense against garden pests. Collards are part of the brassica family, which has a few common visitors.

Cabbage Loopers & Imported Cabbageworms: These green caterpillars are the most common issue. Handpick them daily. For larger infestations, use Bacillus thuringiensis (Bt), a natural bacterial spray that is safe and effective.
Aphids: Small clusters of green or black insects on undersides of leaves. A strong spray of water from the hose can dislodge them. Insecticidal soap is a good follow-up treatment.
Flea Beetles: These tiny black beetles create small shot holes in leaves. Use floating row covers to protect young plants.
Downy Mildew: A fungal disease that shows as yellow spots on leaves with gray fuzz underneath. Improve air circulation, water at the base, and remove affected leaves. Choosing resistant varieties helps alot.

Harvesting and Enjoying Your Collards

You can start harvesting as soon as leaves are large enough to eat, usually when the plant is 10-12 inches tall.

The “Cut-and-Come-Again” Method: Harvest the oldest, lowest leaves first. Cut individual leaves at their stem, leaving the central growing bud intact. The plant will keep producing new leaves from the center for months.
Whole Plant Harvest: You can also cut the entire plant at the base once it’s fully mature.
Flavor Tip: Many gardeners swear that the flavor of collards sweetens after a light frost. In Florida, North and Central regions are most likely to experience this benefit.

Store fresh collards in a plastic bag in your refrigerator’s crisper drawer for up to a week. They also freeze beautifully after a quick blanching.

Recommended Varieties for Florida Gardens

Choosing a variety suited for the South increases your success. Look for heat-tolerant and disease-resistant types.

Georgia Southern (or Creole): A classic, reliable heirloom with great flavor and good heat tolerance.
Vates: Known for its cold tolerance and slow bolting, excellent for extended harvests.
Champion: A compact plant that’s good for smaller spaces and has tender leaves.
Flash: A hybrid known for its resistance to downy mildew and bolting, a great choice for beginners.

FAQ: Planting Collards in Florida

Can I grow collard greens in the summer in Florida?
It is not recommended. The intense heat, heavy rainfall, and high pest pressure will stress the plants, leading to poor growth, bitterness, and rapid bolting.

How long does it take collard greens to grow?
Most varieties reach maturity for a full harvest in 60-80 days from transplanting. You can begin harvesting young leaves in about 30-40 days.

Can I grow collards in containers?
Absolutely. Use a pot at least 12 inches deep and wide. Ensure it has excellent drainage and use a high-quality potting mix. Container plants may need water more frequently.

Why are my collard greens turning yellow?
Yellowing leaves can be caused by several factors: overwatering or poor drainage, a nitrogen deficiency in the soil, or pest like aphids sucking sap from the leaves. Check your soil moisture and inspect the undersides of leaves.

What are good companion plants for collards?
Plant them with other cool-season crops like beets, onions, celery, and herbs like dill and mint. Avoid planting them near strawberries or tomatoes. Good companions can help deter some pests naturally.

Do collard greens come back every year?
No, they are biennials but are grown as annuals. They will eventually flower and set seed in their second year, but leaf production declines. It’s best to replant each season for the best harvest.