Better Boy Plus Tomato: Heat-Resistant Variety With Explosive Flavor

Growing the Better Boy Plus tomato means bigger, beefier fruit that actually tastes like summer—even when the thermometer hits 90°F. 🌞 I've grown Better Boy for years, but this heat-resistant upgrade handles the dog days without cracking or splitting, and the flavor? It's what store-bought tomatoes wish they could be.

The secret starts with soil: rich, well-draining, and packed with compost to keep roots cool. Plant deep (up to the first true leaves) and stake immediately—these vines get heavy. Water consistently at the base (not overhead) to prevent blossom end rot, and mulch heavily to lock in moisture.

The payoff? Plants that keep producing 10-12 pounds of fruit per vine all season long. You'll know you've succeeded when your tomatoes are the size of softballs, with that classic beefsteak sweetness and meaty texture.

The red color deepens as they ripen, and the flavor only improves after a light frost—yes, even in hot climates. Prune suckers regularly to focus energy on fruit production, and watch as your neighbors ask for cuttings.

Compared to standard Better Boy, this variety handles heat stress better, resists cracking, and produces 20% more fruit per plant. The trade-off? It needs consistent care—skip the watering, and you'll see the telltale signs of blossom end rot or sunscald.

But get it right, and you'll have tomatoes that make every sandwich and salad unforgettable.

What you need

Step-by-step instructions for growing Better Boy Plus tomatoes

This heat-loving variety thrives with just a few key adjustments—here's how to coax the biggest, juiciest tomatoes from your plants.

Fill 2-3 inch deep seedling trays with sterile seed-starting mix (never garden soil—it's too dense). Plant 2-3 seeds per cell at a depth of ¼ inch, then cover lightly with additional mix. The reason for shallow planting is that deeper seeds take longer to break through, and Better Boy Plus germinates best when warm.

Keep the soil consistently moist by misting gently until you see first true leaves (not the initial seed leaves). I like to use a humidity dome or plastic wrap for the first 7-10 days to maintain 75-80°F soil temperatures. You'll know germination is working when you see tiny green sprouts poking through in 5-10 days.

Two weeks before your last frost date, begin hardening off seedlings by placing them outside in a sheltered spot for 1-2 hours daily. Gradually increase their outdoor time over 10-14 daysfull sun (6-8 hours daily), so choose a location with minimal shade.

Transplant after all frost risk has passed and soil temperatures reach 60°F. Dig holes 18-24 inches apart (this variety grows large) and bury the stem up to ⅓ of the plant's height. The buried stem encourages root growth along the stem, which helps the plant handle heat stress better. Water deeply right after transplanting to settle the soil around the roots.

Water Better Boy Plus tomatoes at the base of the plant 1-2 inches deep every 2-3 days during hot weather—this variety is drought-tolerant but produces better fruit when consistently moist. You'll know you're watering correctly when the top 1-2 inches of soil feel dry to the touch.

Apply a 2-3 inch layer of organic mulch around the base of the plant to retain moisture and regulate soil temperature. I use straw because it breaks down slowly and keeps the roots cool during heatwaves. Avoid wetting the leaves when watering—this reduces the risk of fungal diseases like early blight, which can devastate tomato plants.

Install a sturdy cage or stake at planting to support the plant's weight as it grows. Better Boy Plus can reach 4-5 feet tall, so choose a support that's at least 5 feet high. Prune suckers (the small shoots that grow in the joint between the main stem and branches) to direct the plant's energy into fruit production rather than leaf growth.

Remove the first few flowers that appear to encourage stronger root and stem development. Once the plant is established, you can let it flower freely. Pinch off any leaves that touch the ground to prevent soil-borne diseases from spreading. You'll see the plant respond with thicker stems and more vigorous growth within 2-3 weeks of consistent pruning.

Harvest tomatoes when they're fully colored and slightly soft to the touch. Better Boy Plus tomatoes typically ripen 70-80 days after transplanting, but heat can delay this. If a tomato doesn't ripen on the vine, pick it green and let it finish ripening indoors at room temperature.

Use pruning shears to cut the stem rather than pulling the fruit off—this prevents damaging the plant. Store harvested tomatoes at room temperature for best flavor. You'll know they're ready to eat when they're deep red, slightly yielding, and fragrant. Enjoy the explosive flavor that makes this variety worth growing!

Tips & tricks for perfect heat-resistant tomato growth

Here's what nobody tells you about growing Better Boy Plus tomatoes that'll make all the difference in your garden.

Seed Starting Strategy: The shallow planting depth of just ¼ inch is crucial—this variety germinates best when warm, and deeper planting delays emergence. I've found that using a heat mat under seedling trays during those first 7-10 days at 75-80°F soil temperatures dramatically improves germination rates. The tiny sprouts should appear within 5-10 days, but if your kitchen stays cooler than 70°F, consider using a seedling heat mat to maintain consistent warmth.

Transplanting Hack: When transplanting, burying the stem up to ⅓ of the plant's height creates a stronger root system that handles heat stress better. This is especially important for Better Boy Plus since it grows so large. I like to make a small trench around the buried stem to encourage even more root growth. After transplanting, give the soil a good soaking—this helps settle the roots and prevents air pockets that can stress the plant.

Heat Protection: During heatwaves, I've learned to water deeply in the early morning (1-2 inches every 2-3 days) to keep roots cool. The mulch layer of 2-3 inches helps tremendously—straw works best because it breaks down slowly and keeps the roots consistently cool. Avoid watering leaves to prevent fungal diseases like early blight, which can ruin your harvest. If you notice leaves wilting in extreme heat, provide temporary shade with a lightweight cloth until temperatures drop.

Pruning Timing: The 2-3 week window after consistent pruning is when you'll see the biggest improvement in plant vigor. Focus on removing suckers (those little shoots in the leaf joints) to direct energy to fruit production. I also recommend removing the first few flowers to let the plant establish stronger stems first—this prevents the plant from being overwhelmed when it finally gets going. You'll know you're doing it right when you see thicker stems and more vigorous growth within those few weeks.

Frequently asked questions

Got questions about growing or using Better Boy Plus tomatoes? You’re not alone! Here are some of the most common queries—and the answers you need to crush your garden (or kitchen) goals.

What makes Better Boy Plus different from regular Better Boy tomatoes?

The Better Boy Plus is a heat-tolerant upgrade of the classic Better Boy, engineered to thrive in hotter climates (up to 95°F) without sacrificing flavor or disease resistance. It’s also bred for bigger, beefier fruit (often 1–2 lbs each!) and earlier ripening—perfect for short summers or late starts. Think of it as the superhero version of its predecessor!

How long does it take for Better Boy Plus tomatoes to mature and produce fruit?

From seed, expect 70–85 days to maturity (check your seed packet for exact timing). Transplants may fruit 10–14 days earlier. With proper care (full sun, consistent water, and support), you’ll see first blooms in 4–6 weeks after transplanting, followed by fruit in 6–8 weeks. Pro tip: Use a tomato cage or stake early to avoid stressing plants later!

Can I grow Better Boy Plus tomatoes in containers? If so, what’s the ideal pot size?

These vining tomatoes thrive in containers if given enough space. Aim for a 5-gallon pot minimum (bigger is better for heavy fruit), with drainage holes and a balanced potting mix (add compost or worm castings for extra nutrients). Use a trellis or tall cage (6+ feet) to support the vines. Bonus: Container-grown tomatoes ripen faster in heat!