How to Grow Blueberries in Florida’s Heat

Blueberries grow well across the South, including South Florida, if you get two things right: a variety bred for mild winters, and acidic, well-drained soil. A raised garden bed takes care of the soil.

Choose the Right Blueberry for Your Winters

Every blueberry needs a certain number of "chill hours" (time spent between roughly 32°F and 45°F) to flower and fruit well. Northern varieties need far more than the South provides, so southern gardeners grow two low-chill types instead.

Southern Highbush: Best for Central and South Florida

Southern highbush blueberries are hybrids bred largely by the University of Florida for mild winters. They ripen early, typically in April and May, and stay compact. 

Varieties home gardeners can usually find include:

• 'Emerald': large berries and a low enough chill requirement for most of peninsular Florida.
• 'Jewel': heavy flowering and firm fruit; one of Florida's most widely grown varieties.
• 'Sharpblue': a UF pioneer variety that handles very mild winters well.
• 'Windsor' and 'Springhigh': reliable producers in central Florida.

In the warmest parts of South Florida, chill hours can be close to zero. Choose the lowest-chill varieties you can find, and expect smaller crops some years.

Rabbiteye: Best for North Florida and the Deep South

Rabbiteye blueberries are native to the Southeast and handle heat and drought well. They need more chill than southern highbush, so they suit North Florida, south Georgia, the Gulf Coast, and similar climates. They ripen later, generally late spring into summer, and can grow quite large.

Common garden varieties include 'Climax', 'Premier', 'Brightwell', 'Powderblue', and 'Tifblue'.

Plant at Least Two Varieties

Blueberries set bigger, more reliable crops when they cross-pollinate. Plant at least two varieties of the same type (two southern highbush, or two rabbiteyes) that bloom around the same time to grow tog.

Why Raised Beds Work So Well for Southern Blueberries

Most southern soil is the wrong match for blueberries. Florida's sandy ground holds little water or organic matter, and much of South Florida sits on alkaline limestone. Blueberries need acidic, moisture-holding, well-drained soil, and a raised bed lets you build exactly that.

A 12-inch-deep bed is a good fit. Blueberries are shallow-rooted, and  researchers consistently find their roots in the top 12-14 inches of soil. A raised bed also drains quickly during heavy summer rains, keeping roots from sitting in water. In southern heat and humidity, untreated cedar holds up well because it naturally resists rot and insects. 

Build the Right Soil

• Target pH 4.5 to 5.5. Test before planting and once a year after. If pH is off, nothing else you do will fix it.
• Use pine bark. Florida growers fill beds with milled pine bark mixed roughly 50:50 with soil, or with pine bark alone. It lowers pH, holds moisture, and improves drainage. Peat moss also helps acidify the mix.
• Avoid alkaline amendments. Skip lime, wood ash, and mushroom compost.
• Watch your water. You can collect rainwater when you can, and test pH more often if you rely on hard water.
• Refresh the bark. Add new pine bark every 2 to 3 years as the old layer breaks down.

Planting and Care

When to plant: Mid-winter (December to February) is ideal across the South, while plants are dormant and temperatures are mild.

How to plant: Set each bush at the same depth it grew in the nursery pot, spacing southern highbush about 4 to 5 feet apart. In a raised bed, leave a slight depression around the plant so water flows toward the roots instead of away from them. Finish with a 3-inch layer of pine bark mulch.

Watering: Blueberries have shallow roots and dry out quickly, especially in fast-draining raised beds. Keep the soil evenly moist, never soggy. Drip irrigation is the easiest way to manage this.

Feeding: Use a blueberry fertilizer or amendment containing ammonium nitrogen, which also helps keep pH low. Apply small amounts often rather than heavy doses, and spread it in a circle no more than 2 feet from the plant, not against the stem.

Pruning: Remove flowers the first spring so young plants put energy into roots and growth. After harvest each year, cut out weak, crossing, or dead canes to keep the bush open and productive.

Harvest: Southern highbush berries ripen in spring and rabbiteyes follow in late spring and summer. Pick berries a few days after they turn fully blue, since they won't sweeten after picking. Netting keeps birds from beating you to them.

Frequently Asked Questions

Can blueberries really grow in South Florida?

Yes, as long as you choose low-chill southern highbush varieties and grow them in acidic, pine bark–based soil. Yields can vary from year to year in the warmest areas, since some winters bring almost no chill hours.

Is a 12-inch raised bed deep enough?

Yes. Blueberries are shallow-rooted, with most roots in the top 12 to 14 inches of soil. Place the bed over loosened ground so roots can reach slightly deeper if they need to.

How many blueberry bushes should I plant?

At least two, using different varieties of the same type. Cross-pollination produces larger berries and heavier crops.

How long until I get berries?

Expect a light crop in the second year and fuller harvests from the third year onward as bushes mature.

Why are my blueberry leaves turning yellow?

Yellow leaves with green veins usually mean the soil pH is too high, which blocks the plant from absorbing iron. Test your soil, then lower pH with sulfur or an ammonium sulfate fertilizer and add fresh pine bark.

Which type is better for a raised bed?

Southern highbush. It stays more compact than other varieties, which can grow quite large, so it is the better match for raised beds and containers.

Plant this winter in a Cedar Planters raised garden bed and you'll have your first berries in about two springs.