Most gardeners plant everything on the same weekend in spring and wonder why they have 40 heads of lettuce in June and nothing in August. Succession planting solves this by staggering sowing dates so crops mature at different times. The goal is a steady supply rather than a single overwhelming harvest.
Three types of succession planting
1. Same-crop succession
Plant the same crop at regular intervals. Instead of sowing all your lettuce at once, sow a short row every 2-3 weeks from early spring through late summer. As the first planting finishes, the next one is hitting its peak.
Best crops for same-crop succession:
- Lettuce — sow every 2 weeks, spring through fall (skip midsummer heat; resume when temps drop below 80°F)
- Radish — sow every 10 days. They mature fast (25-30 days) so gaps are noticeable quickly.
- Bush beans — sow every 3 weeks. Each planting produces for about 3 weeks, so continuous sowing means continuous picking.
- Cilantro — bolts fast in heat. Sow every 2-3 weeks for a continuous supply. Switch to a slow-bolt variety for summer plantings.
- Spinach — sow every 2 weeks in spring and again in fall. Too hot for midsummer in most climates.
2. Relay planting
When one crop finishes, replace it immediately with a different crop. This maximizes production from a fixed amount of bed space.
Classic relay sequences:
- Peas (spring) → beans (summer) — peas finish by early summer. Pull them, add compost, and plant bush beans in the same spot. Beans fix nitrogen just like peas, so the soil stays healthy.
- Lettuce (spring) → tomato transplants (late spring) — get a lettuce harvest before the tomato needs the space. Time it so the lettuce is harvested the week before your tomato transplant date.
- Garlic (fall-spring) → beans or squash (summer) — garlic harvests in midsummer, freeing up prime real estate for a fast summer crop.
- Broccoli (spring) → kale (fall) — both are brassicas, but the broccoli finishes in time for kale to establish before fall frost.
3. Same-crop, different varieties
Plant early, mid-season, and late varieties of the same crop at the same time. They mature at different rates, spreading the harvest over weeks instead of days.
- Tomatoes — plant an early variety (55-65 days, like Early Girl), a mid-season (70-80 days, like Cherokee Purple), and a late (80-90 days, like Brandywine). All transplanted the same day, but you pick from June through October.
- Corn — plant a 60-day, 75-day, and 90-day variety. Same planting date, staggered harvest.
Timing your successions
The key calculation: days to maturity + desired gap between harvests = sowing interval.
For lettuce with 45 days to maturity and a 2-week harvest window, sow every 2 weeks. By the time the first planting is done, the third planting is ready.
For bush beans with 55 days to maturity and a 3-week harvest window, sow every 3 weeks.
Stop sowing when there are not enough days left before your first fall frost for the crop to mature. Count backward: if beans need 55 days and your first frost is October 15, your last sowing date is around August 20.
Crops that do not need succession planting
Some crops produce continuously from a single planting:
- Indeterminate tomatoes — produce fruit continuously until frost kills the plant.
- Peppers — keep producing all season as long as you keep picking.
- Zucchini and summer squash — one or two plants produce more than most families can eat. The problem is too much, not too little.
- Herbs (perennial) — rosemary, thyme, oregano, and chives produce all season from a single planting. Harvest regularly to promote bushy growth.
- Pole beans — unlike bush beans, pole beans produce continuously for 6-8 weeks from a single sowing. Succession planting is optional.
Making it practical
Succession planting sounds complex but it boils down to a simple habit: every 2-3 weeks from spring through midsummer, sow a short row of something fast. Keep a handful of seed packets by the back door. When you walk through the garden and see an empty spot, fill it.
The best tool is a planting calendar tied to your frost dates. Mark your sowing dates at the start of the season, set reminders, and treat them like appointments. The seeds take 5 minutes to sow. The planning is the hard part.