How Long Does It Take for Each Planter to Grow? A Crop-by-Crop Timeline
Every crop has its own internal clock, and knowing roughly how long a planter takes to go from seed to harvest helps you plan a realistic garden — and stops you from assuming something has failed when it's simply still on schedule.
Fast-Growing Planter Crops (Under 50 Days)
- Radishes: 21-30 days
- Lettuce (leaf): 30-45 days
- Spinach: 35-45 days
- Green onions: 30-50 days
- Arugula: 21-40 days
These are ideal first crops if you want quick feedback on whether your setup is working — see our guide on starting a vegetable garden from scratch for a full beginner sequence.
Medium-Growing Planter Crops (50-70 Days)
- Bush beans: 50-60 days
- Cucumbers: 50-65 days
- Summer squash/zucchini: 45-55 days
- Carrots: 60-75 days
Slower Planter Crops (70+ Days)
- Tomatoes (from transplant): 60-85 days
- Peppers (from transplant): 60-90 days
- Eggplant: 65-85 days
- Winter squash/pumpkins: 90-120 days
What Actually Affects These Timelines
- Temperature: cooler-than-ideal soil or air slows growth significantly, especially for warm-season crops.
- Container size: root-bound plants in small containers mature slower and yield less.
- Sunlight: less than the recommended hours extends maturity time and reduces yield.
- Planting depth and spacing: incorrect depth can delay or prevent germination — see our full how to plant guide.
Frequently Asked Questions
Radishes are typically the fastest, ready for harvest in as little as 21-30 days from sowing.
From transplant, tomatoes typically take 60-85 days to reach first harvest, depending on the variety.
Cooler temperatures, insufficient sunlight, or a container that's too small for the root system can all extend the timeline beyond the seed packet estimate.
No — container-grown plants often mature slightly slower than in-ground plants due to more limited root space and faster soil drying.