Early Girl Tomato Size: Maximize Harvests With 50-Day Speed

When growing the Early Girl tomato size, you’ll get pound-sized fruits in just 50 days—the fastest heirloom variety I’ve ever tried. 🌱 These aren’t your tiny cherry tomatoes; each one weighs 6-12 ounces (about 3-4 inches in diameter) and bursts with sweet, tangy flavor.

The plants themselves grow 6-8 feet tall if left unpruned, but proper support keeps them manageable while maximizing fruit production.

With indeterminate growth, Early Girls keep producing all season long, giving you 20-30 pounds per plant if spaced 18-24 inches apart. The key to bigger tomatoes? Prune suckers early, cage or stake them by week 3, and feed with balanced fertilizer (like 10-10-10) every 4-6 weeks.

I’ve seen my plants yield double when I follow these steps—no fancy tricks, just consistency.

Here’s the game-changer: prune aggressively to focus energy on fruit size, not foliage. Remove lower leaves to improve airflow and reduce disease risk, and pinch off side shoots that compete with main stems.

A sturdy 6-foot tomato cage or wooden stake keeps the weight off branches, preventing cracks and splitting—my biggest harvests come from plants that never sagged under their own fruit.

For even larger tomatoes, hand-pollinate on cloudy days by gently shaking the plants (bees do the rest on sunny mornings). And if you’re short on space, grow vertically—I’ve seen Early Girls produce 15 pounds per plant in 5-gallon containers with proper pruning.

The faster you act, the bigger your payoff.

What you need

How to optimize Early Girl tomato size in just 50 days

Here’s the method I’ve used to coax bigger, earlier tomatoes from this fast-maturing variety—no fancy tricks, just smart timing and care.

Begin seeds 8-10 weeks before last frost—that’s roughly 50 days before you expect fruit. Early Girl thrives with a long growing season, so don’t skimp on the head start. I use biodegradable peat pots (2-3 inches deep) filled with sterile seed-starting mix to avoid damping-off. Press the mix firmly but gently so it’s just compact enough to hold the seed in place.

Plant two seeds per pot at ¼-inch depth, then mist lightly with water until the soil is damp but not soggy. Cover with a humidity dome or plastic wrap to retain warmth and moisture. Keep the soil at 75-85°F using a seedling heat mat—this ensures 7-10 days to germination. Once sprouts appear, remove the cover immediately to prevent fungal growth.

As soon as seedlings emerge, move them to a south-facing window or under grow lights for 14-16 hours daily. Early Girl needs full sun to develop strong stems and compact growth. If you notice seedlings stretching toward the light (leggy growth), your light source is too far away—adjust it to 2-4 inches above the plants. Strong seedlings will have thick stems and dark green leaves spaced closely together.

When plants reach 12 inches tall, start pruning. Pinch off the top set of leaves above the first flower cluster to encourage bushier growth. This redirects energy toward fruit production rather than vertical growth. I also remove any suckers (side shoots) that form in the leaf axils—these drain energy from the main plant. Prune in the morning so wounds have time to heal before evening moisture sets in.

Water deeply at the base every 2-3 days—Early Girl hates wet foliage, which invites disease. Let the top inch of soil dry between waterings to prevent blossom-end rot. I use a drip irrigation system or water early in the day so leaves dry quickly. Overhead watering in the evening is a fast track to fungal issues.

Feed plants every 2 weeks with a balanced 10-10-10 fertilizer once flowers appear. Early Girl responds well to calcium-rich amendments like crushed eggshells or lime, which prevent blossom-end rot. Stop fertilizing 2 weeks before harvest to let the plant focus on ripening fruit rather than new growth. You’ll know you’re on track when flowers appear within 45 days of transplanting.

Early Girl tomatoes are ready to pick when they’re fully colored (deep red) and slightly soft to the touch. I harvest in the morning when sugars are highest. Use pruning shears to cut stems cleanly—this prevents disease from entering the plant. Leave 1-2 inches of stem attached to slow moisture loss and preserve flavor.

Don’t wait for tomatoes to ripen on the vine if frost threatens. Green tomatoes can be baked or ripened indoors with ethylene-producing fruits like apples. For the biggest harvests, pick every 2-3 days—this encourages the plant to produce more fruit. You’ll see 3-5 pounds of tomatoes per plant if you follow this schedule, and they’ll be sweeter and larger than store-bought varieties.

Tips & tricks for maximizing Early Girl tomato yields

These garden-tested strategies will help you coax the largest, most flavorful tomatoes from your Early Girl plants in just 50 days.

Germination Secret: The 75-85°F soil temperature range is critical for those first 7-10 days of germination. I've found that placing your seed trays on a heating pad or in a warm spot like above the refrigerator (not inside!) creates the perfect environment. If your home stays below 70°F, consider using a seedling heat mat—it's a small investment that pays off with faster, more uniform germination. Once you see sprouts, remove the cover immediately to prevent damping-off, but keep the humidity high with a clear plastic bag over the tray for the first week.

Lighting Strategy: Those 14-16 hours of daily light are non-negotiable for Early Girl's compact growth. If you're using grow lights, position them just 2-4 inches above the seedlings—any higher and you'll get those dreaded leggy plants. I've had success with LED grow lights on a timer, but if you're using fluorescent bulbs, they need to be closer (1-2 inches) to compensate for lower intensity. Rotate your trays daily so all sides get equal light exposure, which prevents uneven growth and ensures sturdy stems that can support heavy fruit.

Pruning Precision: When your plants reach 12 inches and you're ready to pinch off the top set of leaves, aim for just above the first flower cluster. This might seem counterintuitive since you want fruit, but it forces the plant to put energy into developing existing flowers rather than growing taller. For sucker removal, I use my thumbnail to gently scrape along the stem where suckers emerge—this is faster than pinching and less traumatic for the plant. Always prune in the morning so any wounds have time to callus over before evening moisture arrives, which helps prevent disease entry points.

Fertilizer Timing: The 2-week feeding schedule with 10-10-10 fertilizer starts once flowers appear, but here's what nobody tells you: Early Girl actually benefits from a slightly higher phosphorus ratio (like 5-10-5) during the flowering phase to promote better fruit set. I switch back to 10-10-10 once the first tomatoes appear. For those calcium-rich amendments like crushed eggshells, mix them into the soil at planting time and again when you transplant. The key is consistency—don't overdo it with calcium or you'll get blossom-end rot, but don't skimp either or your tomatoes will develop weak cell walls and crack easily as they grow.

Frequently asked questions

How big should Early Girl tomatoes grow?

Early Girl tomatoes typically reach 1–2 inches in diameter when ripe, but they’re prized for their uniform, golf-ball-sized perfection. Overripe ones may swell to 2.5 inches—harvest before they do! Size depends on pruning, sunlight, and soil fertility. Aim for 50–60 days to maturity for peak flavor and size.