Sun Gold Tomato in Zone 10B — Florida

Sun Gold Tomatoes are practically candy, and you'll be amazed how many you get from just one plant here in Florida. Their intense sweetness and manageable size make them perfect for salads, snacking, or just popping straight into your mouth while you're working in the garden. Plus, they thrive in our reversed seasons, giving you a burst of flavor when other gardens up north are under snow.

Of course, Florida gardening isn't without its challenges – humidity, nematodes, and fungal diseases can be tough. But with the right timing, you can get ahead of many of these problems. Our 360-day growing season gives us plenty of opportunities, and planting Sun Golds in the fall for a winter harvest is a smart strategy.

Here in Florida, you'll want to start your Sun Gold Tomato seeds indoors in early to late December. This gives them a head start before our mildest weather arrives. Starting seeds indoors allows you to control the environment, ensuring your seedlings get the warmth and light they need to thrive.

Use seed trays with a good seed-starting mix, and keep them consistently moist. Bottom watering is a great way to prevent damping-off and encourage strong root growth. Place the trays in a warm location, like on top of your refrigerator, and provide supplemental light with a grow light or fluorescent fixture. Remember, our spring is reversed, so getting a jump start indoors is key.

Transplant your Sun Gold Tomato seedlings outdoors from mid January through mid February. Before transplanting, harden them off by gradually exposing them to outdoor conditions for about a week. This helps them adjust to the sun and wind.

Choose a sunny spot in your garden with well-drained soil. Space the plants 24-36 inches apart to allow for good air circulation. Keep an eye on the weather forecast – occasional cold snaps can still happen, so be prepared to cover your young plants if temperatures dip unexpectedly.

Sun Gold Tomatoes are thirsty plants, especially in Florida's heat. Consistent watering is crucial for preventing fruit cracking and maximizing your harvest. During our drier fall and winter months, aim for about 1-2 inches of water per week, depending on rainfall. Stick your finger about 2 inches deep into the soil – if it feels dry, it's time to water.

In the spring, as temperatures rise, you may need to increase watering frequency. Pay attention to your plants and adjust accordingly. Always water at the base of the plant to avoid wetting the leaves, which can encourage fungal diseases in our humid climate. Overhead watering is not recommended.

Signs of underwatering include wilting leaves and dry soil. Overwatering can lead to yellowing leaves and root rot. Mulching around your tomato plants with pine straw or wood chips helps retain moisture in the soil and suppress weeds.

Sun Gold Tomatoes are vigorous indeterminate plants, which means they'll keep growing and producing fruit until frost. They need strong support to keep them off the ground and prevent them from sprawling. Cages or sturdy stakes work well.

Install your support system at planting time to avoid disturbing the roots later. As the plant grows, gently guide the stems through the cage or tie them to the stake with soft twine. Be prepared to add extra support as needed – these plants can get HUGE!

Pruning is essential for managing Sun Gold Tomatoes in a Florida garden. If left unpruned, they'll quickly take over, reducing airflow and increasing the risk of disease. Focus on removing suckers, which are the small shoots that grow between the main stem and the branches.

Pinch off suckers when they're small to redirect the plant's energy into fruit production. Also, remove any yellowing or diseased leaves, especially those near the bottom of the plant. As the end of the season approaches (around late December), you can top the plant to encourage the remaining green tomatoes to ripen before our first frost.

You can expect your first Sun Gold Tomato harvest from mid March through early May, about 57 days after transplanting. The tomatoes are ripe when they turn a vibrant orange-gold color and feel slightly soft to the touch. They'll also be incredibly sweet and flavorful at this stage.

Gently twist the ripe tomatoes from the vine, being careful not to damage the plant. Sun Golds are known for continuous production, so keep harvesting regularly to encourage more fruit to set. As late December approaches, harvest any remaining green tomatoes and bring them indoors to ripen. They'll still taste great, even if they don't reach the same level of sweetness as vine-ripened ones.

Here in Florida, there are a few common problems you might encounter with Sun Gold Tomatoes.

Cracking:

• What it looks like: Splits in the tomato skin, either in concentric circles around the stem or radiating lines from the stem.
• What causes it: Inconsistent watering, especially after a dry spell. Our heavy summer rains following a dry period can really trigger this.
• How to fix/prevent it: Water consistently and mulch to maintain even soil moisture. Harvest ripe tomatoes promptly.

Over-Production:

• What it looks like: A seemingly endless supply of tomatoes! You might find yourself overwhelmed with more tomatoes than you can possibly eat or give away.
• What causes it: Sun Golds are just naturally prolific, and our long growing season allows them to produce for months.
• How to fix/prevent it: Embrace it! Find creative ways to use your tomatoes – sauces, salsas, drying, freezing, sharing with neighbors. Consider planting fewer plants next season.

Early Blight:

• What it looks like: Brown spots with concentric rings (target or bullseye pattern) on lower leaves, spreading upward. Leaves yellow and drop.
• What causes it: A fungal disease (Alternaria solani) that thrives in our warm, humid conditions. Soil splash spreads the fungus onto lower leaves.
• How to fix/prevent it: Remove and destroy affected leaves (don't compost them!). Mulch to prevent soil splash. Water at the base of the plant. Improve air circulation by spacing plants properly and pruning. Copper fungicide can help slow the spread. Rotate your crops yearly.

Florida Specific Challenges: The combination of high heat, very-high humidity, and our wet-summer rainfall creates a perfect storm for fungal diseases and makes consistent watering a constant balancing act. You'll need to be vigilant about monitoring your plants and taking preventative measures to keep them healthy.

Companion planting can be a great way to improve the health and productivity of your Sun Gold Tomatoes.

Good companions include basil, which repels tomato hornworms and other pests, and carrots, which help loosen the soil and improve drainage. Parsley attracts beneficial insects that prey on tomato pests, and French marigolds deter nematodes in the soil.

Avoid planting tomatoes near brassicas (like cabbage and broccoli), as they can stunt tomato growth. Fennel inhibits the growth of many plants, including tomatoes. Corn can also compete with tomatoes for nutrients and sunlight.