Free harvest date calculator. Calculate estimated harvest dates for 30+ vegetables, fruits, and herbs based on planting date, variety, and growing conditions. Includes growth milestones and harvest tips.
You might also find these calculators useful
Calculate heat units for crop growth and development
Calculate optimal seeding rates for crops based on Pure Live Seed
Calculate irrigation water needs using FAO Penman-Monteith
Calculate reference ET and crop water needs using FAO Penman-Monteith
Knowing when to harvest is critical for peak flavor, nutrition, and yield. Our harvest date calculator uses days-to-maturity data adjusted for your specific conditions—variety selection, planting method, growing environment, and weather factors. Whether you're planning a vegetable garden, scheduling succession plantings, or coordinating farm operations, get accurate harvest predictions for 30+ crops.
Days to Maturity (DTM) is the estimated number of days from planting (or transplanting) until a crop is ready for harvest. This number varies significantly based on variety (early, mid-season, or late), growing conditions, and planting method. Our calculator adjusts the base DTM using proven factors to give you a more accurate harvest date window.
Harvest Date Formula
Harvest Date = Planting Date + (Base DTM × Condition Factors)Schedule succession plantings, bed rotations, and labor needs by knowing exactly when each crop will be ready.
Harvest at peak ripeness. Too early means underdeveloped flavor; too late risks overripe, woody, or bitter produce.
For frost-sensitive crops, knowing your harvest window helps you plan protection or early harvest before killing frost.
Market gardeners and farmers can schedule deliveries, CSA shares, and storage preparation around accurate harvest dates.
Plan your harvest calendar for tomatoes, peppers, cucumbers, and other garden favorites. Know when to expect first fruits.
Calculate multiple planting dates to ensure continuous harvest of lettuce, radishes, beans, and other quick crops.
Determine if warm-season crops will mature before your average first frost date. Plan protection strategies.
Coordinate harvest dates with farmers market schedules, restaurant deliveries, and CSA distribution days.
For direct-seeded crops, DTM counts from sowing. For transplanted crops like tomatoes and peppers, seed companies often count from transplant date (after hardening off). Our calculator lets you specify which method you're using and adjusts accordingly.