Celebrity Tomato in Zone 4A — Mountain West

Celebrity Tomato is a great choice for Mountain West gardens because it consistently delivers delicious, medium-large red tomatoes with good disease resistance, even with our unpredictable weather. Its balanced flavor makes it perfect for everything from fresh salads to sauces, and the satisfaction of harvesting your own homegrown tomatoes in our short season is unbeatable.

Our high altitude, intense sun, and cool nights can be tough on warm-season crops. But with careful timing and a few tricks, you can absolutely grow Celebrity Tomatoes in our short 118-day growing season. We'll walk you through it!

Starting your Celebrity Tomato seeds indoors gives them a head start against our short growing season. Aim to sow your seeds mid-April through early May, about six weeks before you plan to transplant them outdoors. Use seed trays filled with a good seed-starting mix and keep them in a warm spot, ideally around 70-75°F.

A heat mat can be helpful, especially with our cool spring temperatures. Provide plenty of light, either from a grow light or a sunny south-facing window. Be sure to water from the bottom to encourage strong root growth and prevent damping-off disease.

Remember, spring in the Mountains is often late to arrive, so don't be tempted to rush things! Patience is key.

Transplant your Celebrity Tomato seedlings outdoors in early to late June, once the danger of frost has passed. Before planting, harden them off by gradually exposing them to outdoor conditions for about a week. Start with a few hours of shade each day, increasing the time and sunlight exposure daily.

Plant your seedlings 24-36 inches apart in a sunny spot with well-drained soil. Our intense sun can be a blessing, but also a stressor, so choose a spot that gets at least 6-8 hours of direct sunlight but is sheltered from strong winds. Be prepared for possible late frosts or unexpected hail during this time.

Consistent watering is crucial for Celebrity Tomatoes, especially in our dry Mountain West climate. Unlike other regions, we have low humidity and infrequent rainfall, so you need to be diligent. During the peak of summer, when temperatures hit the mid-80s, water deeply about 2-3 times per week, providing roughly 1-2 inches of water each time.

Use the "finger test" to check the soil moisture about 2 inches deep. If it feels dry, it's time to water. Water at the base of the plant to avoid wetting the foliage, which can encourage disease, although our low humidity makes this less of a concern than in other regions.

Signs of underwatering include wilting leaves and dry, cracked fruit. Overwatering can lead to yellowing leaves and root rot. Mulching around your plants with straw or wood chips helps retain moisture and regulate soil temperature, important given our intense sun.

Celebrity Tomatoes are a determinate variety, meaning they grow to a certain size and then stop, setting all their fruit at once. While they aren't as sprawling as indeterminate varieties, they still benefit from support. Medium-height cages or sturdy stakes work well.

Install the support at planting time to avoid damaging the roots later. As the plant grows, gently guide the stems through the cage or tie them to the stake with soft twine. This will keep the fruit off the ground, improve air circulation, and prevent the plant from toppling over in our occasional strong winds.

You can expect your first harvest of Celebrity Tomatoes from mid-August through mid-September, about 70 days after transplanting. The tomatoes are ready to pick when they are a deep red color, firm to the touch, and have a slight give when gently squeezed.

To harvest, simply twist the fruit gently until it separates from the vine. Avoid pulling, which can damage the plant. Regular harvesting encourages continued production throughout the season.

As our first frost approaches in mid-September, keep a close eye on the weather forecast. If frost is predicted, harvest any remaining green tomatoes and bring them indoors to ripen. They'll still develop flavor, though maybe not quite as intensely as vine-ripened fruit.

Here are the top 3 problems to watch out for with Celebrity Tomatoes in the Mountain West:

Blossom Drop

• What it looks like: Flowers fall off without setting fruit, and small fruit yellows and drops. The plant looks healthy otherwise.
• What causes it: Temperature stress. Our cool nights or occasional hot days can disrupt pollination. Low humidity and excess nitrogen can also contribute.
• How to fix/prevent it: Be patient; fruit set usually resumes when temperatures moderate. Provide afternoon shade during extreme heat. Keep plants consistently watered. Avoid over-fertilizing with nitrogen. Try hand-pollinating by gently shaking the plant.

Hornworms

• What it looks like: Large sections of leaves stripped overnight. You might find large green caterpillars (up to 4 inches) with white stripes and dark droppings on the leaves.
• What causes it: These are the larvae of hawk moths. They can defoliate your plants quickly.
• How to fix/prevent it: Handpick them (they don't bite!) and drop them in soapy water. Bt (Bacillus thuringiensis) spray is effective and organic. If you see hornworms with white cocoons on them, leave them be — those are parasitic wasp eggs that will kill the hornworm and release beneficial wasps.

Early Blight

• What it looks like: Brown spots with concentric rings (target pattern) appear on lower leaves first, spreading upward. Leaves yellow and drop.
• What causes it: A fungal disease that thrives in warm, humid conditions, spreading via soil splash.
• How to fix/prevent it: Remove and destroy affected leaves (don't compost them). Mulch around the plants to prevent soil splash. Water at the base, not overhead. Improve air circulation by spacing plants adequately and pruning. Copper fungicide can slow the spread.

Mountain West Specific Challenges: Our moderate-at-altitude heat generally isn't as severe as in lower elevations, but the intense UV radiation can still stress plants. Low humidity means blossom end rot is less of a concern than in more humid climates, but consistent watering is still crucial. Our dry conditions also mean that fungal diseases like early blight are less prevalent, but good garden hygiene is still important to prevent them.

Companion planting can help your Celebrity Tomatoes thrive in our Mountain gardens.

Good companions:

• Basil: Repels tomato hornworms and whiteflies.
• Carrots: Improve soil aeration and deter root-knot nematodes.
• Parsley: Attracts beneficial insects and can improve tomato flavor.
• Marigold (French): Repels nematodes and other soil pests.

Bad companions:

• Brassicas (cabbage, broccoli, cauliflower): Inhibit tomato growth.
• Fennel: Inhibits the growth of many plants, including tomatoes.
• Corn: Can attract tomato pests like corn earworms (which are related to tomato fruitworms).