Known for its uniform fruit, rich flavor, and smooth texture, Campbell’s 33 is a reliable, all-purpose heirloom tomato bred for both fresh eating and preserving. Developed in the 1950s for commercial canning, this determinate variety produces round, medium-sized tomatoes with thick walls and fewer seeds—ideal for sauces, salsas, or a thick tomato sandwich.
It’s a great choice for gardeners seeking heavy yields, disease resistance, and firm fruit that holds up well in the kitchen or on the vine.
Skill Level: Intermediate – Best for gardeners with some tomato experience
Pollinator Friendly: • Attracts bumblebees and beneficial garden insects • Works well with companion plants like basil or marigolds
Planting & Care:
Light: Full sun (6–8+ hours per day)
Plant Height: 3–4 feet
Spacing: 18–24" apart
Watering: Deep water 1–2 times per week; avoid overhead watering
Soil: Well-drained, nutrient-rich soil with compost
Frost Sensitivity: Tender annual – transplant outdoors after danger of frost
To Start:
Zones 3–6: Start indoors 6–8 weeks before last frost; harden off and transplant after soil warms
Zones 7–10: Start indoors or sow directly outdoors after last frost
Zones 11–12: Grow in fall and winter to avoid intense summer heat
Start seeds 1/4 inch deep in seed-starting mix. Transplant when 5–6 inches tall and night temps stay above 50°F. Stake or cage as needed to support fruit-laden stems.
