Succession Planting: How to Harvest Vegetables All Season
Learn three succession planting methods that keep your garden producing from spring to autumn. Timing tables, crop lists, and practical tips for European gardens.
Most vegetable gardens produce a feast in July and almost nothing by September. The beds are either bare or bolting, and the kitchen goes from overflowing to empty in the space of a few weeks. Succession planting fixes that problem by staggering what you sow and when, so harvests keep coming from late spring right through to the first frost.
The concept is simple, and once you see how it works, you will wonder why you ever planted everything on the same weekend. This guide covers three succession planting methods, which crops suit each one, and a practical timing table you can adapt to your region.
What Is Succession Planting?
Succession planting is any technique that extends your harvest window by avoiding the all-at-once approach. Instead of sowing thirty lettuce seeds on one April morning and eating salad for two weeks before the entire crop bolts, you sow ten seeds every two to three weeks. The result is a steady, manageable supply rather than a glut followed by nothing.
There are three main methods, and most productive gardens use a combination of all three.
Method 1: Time Staggering
This is the most common approach. You sow the same crop at regular intervals so that each batch reaches maturity at a different time.
Best crops for time staggering:
| Crop | Sowing Interval | Harvests Per Season | Notes |
|---|---|---|---|
| Lettuce | Every 2-3 weeks | 4-6 | Stop sowing in midsummer heat; resume in late summer |
| Radish | Every 2 weeks | 5-8 | Fast crop — 25-30 days to harvest |
| Spinach | Every 3 weeks | 3-5 | Bolts quickly in warm weather; use heat-tolerant varieties in summer |
| Bush beans | Every 3 weeks | 3-4 | Start after last frost; final sowing 8-10 weeks before first autumn frost |
| Beetroot | Every 3-4 weeks | 3-4 | Tolerates light frost; good for extending into autumn |
| Spring onions | Every 3 weeks | 4-5 | Year-round in mild climates |
| Coriander | Every 2 weeks | 5-7 | Bolts fast; frequent sowings are essential |
How to plan time staggering
- Note the days-to-harvest for your chosen variety (check the seed packet).
- Decide how many weeks of continuous harvest you want.
- Divide by the sowing interval — that is the number of batches you need.
- Mark your sowing dates on a calendar and stick to them.
Planning Tip
Use Plantory's garden planner to set sowing reminders for each succession batch. The app tracks your varieties and spacing so you always know what goes where next.
Method 2: Variety Staggering
Instead of sowing the same variety repeatedly, you grow early, mid-season, and late varieties of the same crop. Each variety matures at a different rate, spreading the harvest naturally without multiple sowings.
Best crops for variety staggering:
- Tomatoes: plant an early variety (Stupice, 55 days) alongside a mid-season (Moneymaker, 75 days) and a late (San Marzano, 85 days)
- Potatoes: first earlies (June), second earlies (July), maincrops (August-September)
- Cabbage: spring cabbage, summer cabbage, autumn/winter savoy
- Peas: early round (Feltham First) + wrinkle-seeded main crop (Kelvedon Wonder) + late (Alderman)
This method works well for crops where multiple sowings are impractical — large plants that take up space for months, like brassicas and potatoes.
Method 3: Crop Replacement
When one crop finishes, you immediately sow or transplant something else into the same space. This is sometimes called relay planting or follow-on cropping.
Classic replacement sequences for European gardens:
| Spring Crop (Mar-Jun) | Summer/Autumn Replacement (Jun-Sep) |
|---|---|
| Early peas | Bush beans or late carrots |
| Broad beans | Kale or late beetroot |
| Early potatoes | Leeks or winter lettuce |
| Radish | Dwarf French beans |
| Lettuce | Pak choi or mizuna |
| Spinach | Chard or autumn spinach |
The key is timing: have your replacement crop ready as seedlings or know the latest safe sowing date for direct seed.
Timing by Region
Succession planting dates shift depending on your climate. Use the table below as a starting framework and adjust based on your local conditions.
| Region (Koppen) | First Succession Sowing | Last Succession Sowing | Growing Season |
|---|---|---|---|
| Atlantic (Cfb) — UK, NL, BE, NW France | Early March | Late August | 6-7 months |
| Continental (Dfb) — CZ, PL, SK, inland DE | Mid-March | Mid-August | 5-6 months |
| Mediterranean (Csa) — ES, IT, S France | February | October | 8-9 months |
| Nordic/Mountain — Scandinavia, Alpine | April | Late July | 4-5 months |
In Mediterranean climates, summer heat replaces frost as the limiting factor. Pause succession sowings of cool-season crops (lettuce, spinach) during July and August, then resume in September.
Common Mistakes to Avoid
- Sowing too much at once. Ten plants of each batch is plenty for a household of two to four. A whole packet of lettuce seed in one go means waste.
- Forgetting the calendar. Succession planting only works if you actually sow on schedule. Set reminders or mark dates on your planner.
- Ignoring bolting triggers. Lettuce, coriander, and spinach bolt in heat. In midsummer, switch to heat-tolerant varieties or skip a round.
- Not preparing the next crop. If you rely on crop replacement, have transplants ready before the spring crop finishes. A bare bed in July is a wasted month.
- Planting warm-season crops too late. Bush beans sown in late August will not mature before frost in continental climates. Count backwards from your first expected frost date.
Summary
Succession planting is the single most effective way to keep your garden productive from spring to autumn. Combine time staggering for fast crops like lettuce and radish, variety staggering for tomatoes and potatoes, and crop replacement to fill every gap. Start with two or three crops this season, and once the rhythm clicks, expand from there.
The key is a plan — and the discipline to follow it.