Celebrity Tomato in Zone 8A — Northern California

Celebrity Tomato is a fantastic choice for Northern California gardens. Its reliable yields of flavorful, medium-large tomatoes make it perfect for slicing, sauces, and canning. Plus, its disease resistance is a real boon, offering a satisfying harvest even for beginner gardeners in our region.

We NorCal gardeners know we face challenges like drought and increasingly hot summers, but Celebrity's relatively early maturity means you can often get a good crop before the worst of the heat hits. With our long, 255-day growing season, timing your planting right gives you a great advantage.

Starting Celebrity Tomato indoors gives you a head start on our long growing season. Aim to sow your seeds in early to late February, roughly six weeks before you plan to transplant them outside. This allows the seedlings to develop into strong, healthy plants ready to take off once the weather warms.

Use seed trays or small pots filled with a good seed-starting mix. Keep the soil consistently moist, and consider bottom watering by placing the tray in a shallow container of water to allow the soil to soak it up from the bottom. Place your seed trays in a warm spot, ideally around 70-75°F, and provide plenty of light. A sunny windowsill can work, but supplemental grow lights will give you the best results, especially with our early spring days.

Transplant your Celebrity Tomato seedlings outdoors from late March through late April, after the danger of frost has passed. Before planting, harden off your seedlings by gradually exposing them to outdoor conditions for about a week. Start with an hour or two of shade, increasing the time and sun exposure each day.

Choose a sunny spot with well-drained soil, spacing the plants 24-36 inches apart. Be mindful of our variable spring weather; a late cold snap is always possible, so keep row covers handy to protect your young plants if temperatures dip unexpectedly.

Celebrity Tomato needs consistent watering, especially during our dry summers. Aim to provide about 1-2 inches of water per week, adjusting based on rainfall and temperature. The "finger test" is your best guide: stick your finger into the soil about 2 inches deep; if it feels dry, it's time to water.

Water deeply at the base of the plant to encourage strong root growth and minimize wetting the foliage, which can help prevent disease in our low-humidity environment. Avoid overhead watering, especially in the evenings.

During the hottest periods, you may need to water more frequently. Signs of underwatering include wilting leaves and dry soil. Overwatering can lead to yellowing leaves and root rot. A good layer of mulch, like straw or wood chips, helps retain moisture in the soil and suppress weeds, which is especially helpful during our dry summers and water restrictions.

Celebrity Tomato, being a determinate variety, doesn't grow as tall as indeterminate types, but it still benefits from support. A medium-height cage or sturdy stakes work well to keep the fruit off the ground and prevent the plant from sprawling.

Install the support 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 stakes with soft twine. This keeps the plant upright, improves air circulation, and makes harvesting easier.

You can expect your first Celebrity Tomato harvest from early June through late July, about 70 days after transplanting. The fruits are ready to pick when they are a deep red color, firm to the touch, but with a slight give when gently squeezed.

To harvest, simply twist the tomato gently until the stem snaps. Regular harvesting encourages continued production. As our first frost approaches in mid- November, harvest any remaining green tomatoes and bring them indoors to ripen. They'll ripen best in a single layer, out of direct sunlight.

Here are some common issues you might encounter with Celebrity Tomato in Northern California:

Blossom Drop

• What it looks like: Flowers fall off without setting fruit, or small fruit turns yellow and drops. The plant itself looks healthy.
• What causes it: Temperature stress is the main culprit. Our hot days and warm nights can prevent fruit set. Low humidity, excess nitrogen from over-fertilizing, and poor pollination can also contribute.
• How to fix/prevent it: Be patient – fruit set should resume when temperatures moderate. During heat waves, provide afternoon shade with shade cloth. Water deeply and consistently, but avoid over-fertilizing. Gently shake the plant to encourage pollination or use a small brush to transfer pollen between flowers.

Hornworms

• What it looks like: Large sections of leaves are stripped overnight. Look for large (up to 4 inches) green caterpillars with white diagonal stripes. Also, dark droppings on leaves.
• What causes it: These are the larvae of hawk moths. They can defoliate a plant quickly.
• How to fix/prevent it: Handpick them – they're big and easy to spot, despite their camouflage. Bt (Bacillus thuringiensis) spray is effective and organic. If you see hornworms with white cocoons on their backs, leave them alone; those are parasitic wasp eggs that will kill the hornworm.

Early Blight

• What it looks like: Brown spots with concentric rings (target or bullseye pattern) appear on lower leaves first, then spread upward. Leaves yellow and drop.
• What causes it: This is a fungal disease that thrives in warm, humid conditions. In our region, it's often caused by soil splash onto the lower leaves.
• How to fix/prevent it: Remove and destroy affected leaves. Mulch around the base of the plants to prevent soil splash. Water at the base, not overhead. Improve air circulation by spacing plants adequately and pruning. Copper fungicide can help slow the spread. Rotate crops yearly.

Northern California Specific Challenges: Our moderate-to-hot summers, combined with low humidity and dry-summer rainfall, can create challenges for Celebrity Tomato. Consistent watering is crucial to combat drought stress. Mulching helps conserve moisture and regulate soil temperature. Good air circulation and proper watering techniques can help prevent fungal diseases. Be prepared to provide shade during heat waves to prevent blossom drop.

Companion planting can greatly benefit your Celebrity Tomato plants here in Northern California. Basil is a classic companion because it repels tomato hornworms and whiteflies, and it improves tomato flavor. Carrots help improve the soil structure and deter nematodes. Parsley attracts beneficial insects that prey on pests. French marigolds deter nematodes and other soil pests, protecting your tomato roots.

Avoid planting brassicas (like cabbage, broccoli, and kale) near tomatoes, as they can stunt tomato growth. Fennel inhibits the growth of many plants, including tomatoes. Corn can attract tomato pests and diseases, so it's best to keep them separated.