Big Boy

Tomato

90d to harvest

Sink your spoon into Big Boy’s lush, meaty flesh—rich, classic tomato flavor with a sweet, garden-ripe perfume and a juicy, velvety bite. This beefsteak standout forms large, globe-to-slightly-flattened fruits with a smooth, satin skin and substantial interior chambers that hold their character for bold slices. Grow Big Boy for showy summer harvests that shine in fresh salads, hearty sandwiches, and thick, spoonable sauces that capture its full-bodied taste.

Crop Dates

Milestone	Date
Start Indoors	Mar 27th
Last Frost	May 15th
Transplant / Sow Outdoors	Jul 10th
Harvest Begins	Oct 8th
Harvest Ends	Sep 24th

Crop Details

Trait	Value
Days to Maturity	90
Sun Requirements	Full Sun
Growth Habit	Determinate
Support Needed	Cage
Planting Depth	Deep
Germination Temp (°F)	75
Min Soil Temp (°F)	60
Min Night Temp (°F)	50
Harden Off (days)	10

Recommended Companions

Amethyst Improved Basil

African Marigold Marigold

Naval Carrot

Temperate Tulsi Basil

Carlo Carrot

Taishan Yellow Marigold

Frequently Asked Questions

Big Boy tomato: what should I do about early blight?

Early blight shows up as brown, target-like spots on lower leaves that gradually move upward, often with yellowing around the spots. Remove and discard affected lower leaves immediately, water at the soil line (not the foliage), and space plants so leaves dry quickly. If it keeps spreading, apply a labeled tomato fungicide that targets early blight and repeat according to the label schedule.

How can I tell when Big Boy tomatoes are ready to harvest?

Pick when fruits are fully colored (deep red for Big Boy) and give slightly when gently squeezed—shouldn’t feel hard. Harvesting should start around day ~75–85 and continue as new fruits mature, usually every few days in warm weather. If a tomato still shows green near the stem end, wait a few more days until it ripens evenly.