Celebrity Tomato in Zone 7B — Desert Southwest

Celebrity Tomato is a solid choice for Desert Southwest gardens. It offers reliable yields of flavorful, medium-large tomatoes perfect for slicing, salads, and sauces. Plus, its disease resistance makes it a satisfying option, even for beginner gardeners navigating our unique climate.

Sure, our extreme heat and low humidity present challenges, but with careful timing and smart gardening practices, you can absolutely enjoy a bountiful Celebrity Tomato harvest. Our long, 245-day growing season gives you two chances to succeed, spring and fall.

Starting your Celebrity Tomato seeds indoors from early February through early March gives them a head start before our intense summer heat arrives. This is about 6 weeks before you'll want to transplant them outside. Use seed trays with a good seed-starting mix and keep them in a warm spot, ideally with a heat mat to speed germination.

Consistent moisture is key, and bottom watering is your friend! Place the tray in a shallow container of water and let the soil soak it up from the bottom. This encourages strong root growth and prevents damping off. Remember, our spring warmth can be fleeting, so stay vigilant about providing consistent conditions.

Transplant your Celebrity Tomato seedlings outdoors from late March through late April, after the last expected frost. Before you put them in the ground, it's crucial to harden them off. This means gradually exposing them to outdoor conditions for about a week. Start with an hour or two of shade and increase the time and sun exposure each day.

When planting, space them 24-36 inches apart to allow for good air circulation. Keep an eye on the weather forecast; even in late March, we can get unexpected temperature dips that could stress young plants.

Watering is critical for Celebrity Tomatoes in our arid climate. These plants are thirsty and need consistent moisture to thrive. During the hot spring, aim for at least 2 inches of water per week, increasing to 3 inches or more as temperatures soar in late spring and early summer.

Use the "finger test" to gauge soil moisture: stick your finger about 2 inches deep into the soil. If it feels dry, it's time to water. Water deeply at the base of the plant to encourage deep root growth and minimize water loss through evaporation. Overhead watering can increase the risk of fungal diseases.

Signs of underwatering include wilting leaves and slow growth. Overwatering can lead to yellowing leaves and root rot. Mulching around the base of the plant with organic matter like compost helps retain moisture and regulate soil temperature, a lifesaver during our extreme heat.

Celebrity Tomatoes are determinate, meaning they grow to a certain size and then set all their fruit at once. While they're not as sprawling as indeterminate varieties, they still benefit from support. Medium-height cages work well, providing ample support for the fruit-laden branches.

Install the cage at planting time to avoid disturbing the roots later. Gently guide the plant's growth through the cage as it grows. This will keep the fruit off the ground, improving air circulation and reducing the risk of soilborne diseases.

Expect your first Celebrity Tomato harvest from early June through late July, about 70 days after transplanting. Look for medium-large, red fruit that is firm but has a slight give when gently squeezed. These tomatoes have excellent disease resistance, so you'll likely have a productive season.

To harvest, gently twist or cut the tomato from the vine, being careful not to damage the plant. 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 in a cool, dark place.

Here are some common problems you might encounter with Celebrity Tomatoes in the Desert Southwest:

Blossom Drop

• What it looks like: Flowers fall off without setting fruit. Small fruit yellows and drops. The plant looks healthy otherwise.
• What causes it: Temperature stress is the main culprit. Nights above 75°F or days exceeding 95°F can prevent fruit set. Low humidity and poor pollination also contribute.
• How to fix/prevent it: Be patient! Fruit set usually resumes when temperatures moderate. Provide afternoon shade with shade cloth during the hottest periods. Keep plants well-watered. Avoid over-fertilizing with nitrogen. Gently shake the plant to encourage pollination.

Hornworms

• What it looks like: Large sections of leaves stripped overnight. Large (up to 4 inches) green caterpillars with white diagonal stripes. Dark droppings on leaves below.
• What causes it: These are the larvae of hawk moths. They lay their eggs on tomato plants, and the caterpillars are voracious eaters.
• How to fix/prevent it: Handpick them (they're easy to spot). Bt (Bacillus thuringiensis) spray is an effective and organic control. If you see hornworms with white cocoons on them, leave them alone – those are beneficial parasitic wasp eggs.

Early Blight

• What it looks like: Brown spots with concentric rings (a target or bullseye pattern) appear on lower leaves first, spreading upward. Leaves yellow and drop.
• What causes it: This is a fungal disease (Alternaria solani) that thrives in warm, humid conditions. It spreads through soil splash 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, not overhead. Improve air circulation by spacing plants properly and pruning. Copper fungicide can slow the spread. Rotate your crops yearly.

Desert Southwest Specific Challenges: Our extreme heat, arid humidity, and occasional monsoon moisture can all impact Celebrity Tomatoes. Providing shade during the hottest part of the day is crucial. Consistent watering is essential, but be careful not to overwater, especially during monsoon season.

Companion planting can help your Celebrity Tomatoes thrive. Basil is a great companion because it repels tomato hornworms and other pests, plus it improves the flavor of the tomatoes. Carrots loosen the soil and deter nematodes. Parsley attracts beneficial insects. French marigolds also deter nematodes and other soil pests.

Avoid planting brassicas (like cabbage and broccoli) near tomatoes, as they compete for nutrients. Fennel inhibits the growth of many plants, including tomatoes. Corn can attract pests that also affect tomatoes.