Better Boy Tomato in Zone 10A — Desert Southwest

Better Boy Tomato is a fantastic choice for Desert Southwest gardens. Its classic tomato flavor, versatility in the kitchen, and satisfying yields make it a winner in our region. Plus, its disease resistance helps it thrive even with our occasional monsoon moisture.

Sure, we face extreme heat and intense sun here, but with careful timing and smart gardening practices, you can absolutely enjoy a bountiful Better Boy Tomato harvest. Our long, 339-day growing season gives us a great head start, allowing you to get those tomatoes ripening before the worst of the summer heat arrives.

Starting Better Boy Tomato seeds indoors is the way to go in the Desert Southwest. Aim to sow your seeds from mid December through early January – about six weeks before you plan to transplant them outside. This gives them a strong start before our very-early spring gets underway.

Use seed trays or small pots filled with a good seed-starting mix. Keep them warm (a heat mat helps) and provide plenty of light (grow lights are ideal). Don't forget to water from the bottom to encourage strong root growth and prevent damping off.

Transplant your Better Boy Tomato seedlings outdoors from early February through early March. This timing lets them establish before the extreme heat hits. Before transplanting, harden them off for about a week by gradually exposing them to outdoor conditions.

Space your plants 24-36 inches apart to allow for good air circulation. Be mindful of unexpected temperature swings this time of year, and protect young plants from late frosts with frost cloth if needed.

Watering is absolutely critical for Better Boy Tomato success in our arid Desert Southwest climate. These plants are thirsty! Consistent moisture is key to preventing blossom end rot and cracking.

During the cooler spring months (February-April), water deeply about 2-3 times per week, providing about 1-2 inches of water each time. As temperatures rise in late spring and early summer (May-June), increase watering to every other day, or even daily during heat waves, providing 2-3 inches of water per week. Use the "finger test" – if the soil is dry 2 inches down, it's time to water. Water at the base of the plant to avoid wetting the foliage, which can encourage disease in our sometimes humid monsoon season.

Signs of underwatering include wilting leaves and dry, cracked soil. Overwatering can lead to yellowing leaves and root rot. A good layer of organic mulch, like wood chips or straw, will help retain moisture and regulate soil temperature.

Better Boy Tomato is an indeterminate variety, meaning it will grow tall and produce fruit throughout the season. These vigorous vines need strong support. Cages or sturdy stakes work best.

Install your chosen support system at planting time to avoid disturbing the roots later. As the plant grows, gently guide the vines through the cage or tie them to the stake. This will keep the heavy fruit off the ground and improve air circulation.

Pruning your Better Boy Tomato can improve fruit size and overall plant health. Focus on removing the "suckers" – the small shoots that grow in the crotch between the main stem and branches.

Pinch these off early in the morning as they appear throughout the growing season. Also, remove any yellowing or diseased lower leaves to improve air circulation. Since Better Boy is disease-resistant, you don't have to be overly aggressive with pruning. As the end of the season approaches (late December), you can top the plant to encourage the remaining green tomatoes to ripen before frost.

You can expect your first Better Boy Tomato harvest from mid April through early June, about 72 days after transplanting. Look for large, red fruit that has a slight give when gently squeezed.

To harvest, gently twist or snip the tomato from the vine, leaving a small piece of stem attached. Regular harvesting encourages continued production. As our first frost approaches in late December, harvest any remaining green tomatoes and bring them indoors to ripen.

Here are some common problems to watch out for with Better Boy Tomato in the Desert Southwest:

Blossom End Rot

• What it looks like: A sunken, dark brown or black leathery patch on the bottom of the tomato.
• What causes it: Inconsistent watering leads to calcium deficiency. Our dry climate followed by monsoon moisture can create this problem.
• How to fix/prevent it: Water consistently! Mulch heavily. Avoid over-fertilizing with nitrogen. Remove affected fruit.

Cracking

• What it looks like: Splits in the tomato skin, either in circles around the stem or lines radiating from the stem.
• What causes it: Heavy watering or rain after a dry spell. Common during monsoon season.
• How to fix/prevent it: Water consistently. Mulch to maintain even moisture. Harvest promptly when ripe.

Hornworms

• What it looks like: Large sections of leaves stripped overnight. You might see large green caterpillars with white stripes and dark droppings.
• What causes it: These are larvae of hawk moths. They can defoliate a plant quickly.
• How to fix/prevent it: Handpick them (they're easy to spot). Bt spray is effective. Leave any hornworms with white cocoons – they're being parasitized by beneficial wasps.

Early Blight

• What it looks like: Brown spots with concentric rings on lower leaves first, spreading upward.
• What causes it: Fungal disease that thrives in warm, humid conditions. Soil splash spreads it.
• How to fix/prevent it: Remove affected leaves. Mulch to prevent soil splash. Water at the base. Improve air circulation. Copper fungicide can slow the spread.

Desert Southwest Specific Challenges: Our extreme heat can stress plants, making them more susceptible to problems. Arid humidity can quickly lead to blossom end rot and cracking with inconsistent watering. Monsoon moisture, while welcome, can also create conditions for fungal diseases like early blight. Consistent monitoring and proactive measures are key to success.

Good companions for Better Boy Tomato in the Desert Southwest include basil, carrots, parsley, and French marigolds. Basil is said to improve tomato flavor and repel pests. Carrots help loosen the soil and don't compete for nutrients. Parsley attracts beneficial insects. French marigolds repel nematodes and other soil pests.

Avoid planting brassicas (like cabbage and broccoli) near tomatoes, as they can stunt tomato growth. Fennel inhibits the growth of many plants, including tomatoes. Corn can attract tomato pests like the tomato hornworm.