The Foundation of Efficient Succession Planting
Succession planting — staggering plantings every 2-3 weeks to maintain continuous harvest — requires understanding which crops must be direct sown and which can (or should) be transplanted. This distinction shapes every succession planting schedule because it determines lead times, spacing flexibility, and the number of plants you can manage simultaneously.
Crops That Must Be Direct Sown
Root vegetables (carrots, beets, radishes, turnips, parsnips) cannot be transplanted — their taproots are disturbed by transplanting and the crop is ruined. Direct sow these where they will grow, thin to proper spacing, and succession sow every 2-3 weeks directly into the bed. Peas and beans also prefer direct sowing — their root systems are fragile and they grow fast enough that transplanting provides no advantage. Corn, squash, and cucumbers can be transplanted but root so fast that direct sowing is usually simpler.
Crops That Benefit from Transplanting
Tomatoes, peppers, and eggplant need weeks of indoor growing time before conditions are right to set them out. Transplanting is the only practical approach. Brassicas (broccoli, cabbage, cauliflower) are started indoors to get a head start before outdoor conditions are suitable. Lettuce and onions can be started in indoor plug trays and transplanted as seedlings — this allows succession planting at high density with precise timing.
The Succession Schedule for Direct-Sown Crops
Mark your calendar with sowing dates 2-3 weeks apart. Radishes (25-30 days to harvest): sow every 2 weeks from early spring through fall. Lettuce (30-45 days): sow every 3 weeks. Beans (50-60 days): sow every 3 weeks from after last frost through late July. Carrots (60-75 days): sow every 3-4 weeks from early spring through late July. Beets (50-70 days): sow every 3 weeks.
The Transplant Succession Schedule
For crops grown from transplants, start new indoor seeds at intervals that give you transplant-ready starts when outdoor conditions are right. For lettuce starts in trays: sow new trays every 3 weeks. For brassica transplants for fall garden: count backwards 6 weeks from when you want transplants outdoors (usually late summer for fall planting).
Frequently Asked Questions
How do I know when a bed is ready for the next succession?
When the previous crop is cleared or within 1-2 weeks of clearing. For crops that are harvested over time (cut-and-come-again lettuce, kale), start the next succession when the current planting starts to decline in quality rather than waiting until it is fully exhausted.
Can I succession plant in the same bed?
Yes — this is the whole point. When one crop finishes, another goes in. Improve fertility between successions with a compost side-dressing or diluted liquid fertilizer. Keep bed records so you can rotate families (avoid planting brassica after brassica in the same spot to reduce disease buildup).
What is the hardest part of succession planting for beginners?
Starting the next sowing before the current crop is harvested. It feels premature to plant more lettuce when you still have plenty. But that next sowing needs 3 weeks to reach harvest size — if you wait until the current crop is exhausted, there is a gap. The mental shift is planning 3-4 weeks ahead, always.
How many sowings of beans can I get in one season?
In zones 5-6 with a 150-day season: 3 successive plantings of bush beans (every 3 weeks from last frost through late July). In zones 7-8: 4 plantings. In zones 9-10: 5-6 plantings, with a gap in the hottest weeks. Each planting provides 2-3 weeks of peak production.
Can I succession plant the same variety or should I use different varieties?
Both approaches work. Sowing the same fast-maturing variety every 2-3 weeks provides predictable timing. Alternatively, sowing varieties with different maturity dates in a single sowing (one early variety, one mid-season, one late) achieves staggered harvest from a single planting — less bed management, more variety on the plate.