01
Early clearance
August to early September
Use short rows or modules so the follow-on establishes while light and soil warmth remain.
UK succession guide
What to plant after sweetcorn.
Sweetcorn belongs to the grass family. The strongest follow-on choice depends on the exact clearance date—not the crop name alone.
Check my date and regionShort answer
Start with these credible options.
These are useful directions, not automatic recommendations. Use the tool to check whether the sowing window still fits.
- 01
Spinach
Fast leaves and a strong fit after summer crops.
Read the growing guide → - 02
Rocket
Fast, high-value leaves with a small footprint.
Read the growing guide → - 03
Garlic
Uses winter space efficiently and stores for months after curing.
Read the growing guide → - 04
Broad beans
One of the earliest productive legumes and a useful succession starting point.
Read the growing guide →
When the space opens
Usually August to October, once the final cobs are harvested.
- What the bed is like
- A sunny block with substantial stems and roots, often after a demanding summer crop.
- The key decision
- An August clearance still has time for quick leaves; an October clearance is usually better used for an overwintering crop or soil cover.
Choose by clearance date
The answer changes as the season moves.
These bands are starting points. Use the seed packet and the personalised tool for your region, cover and exact date.
02
Autumn clearance
Mid-September to October
Choose a winter spinach variety, or switch to cloves and hardy beans where drainage and local conditions suit them.
03
Late or cold site
Late October onward
Do not force tender or fast crops into falling light. Plant garlic where the soil drains, or mulch the bed until spring.
Clear the old crop well
Reset the space before replanting.
- 1
Cut stems at the base
Remove the bulky top growth and shred it before composting. Leave sound roots to decay if they do not obstruct the next planting.
- 2
Check moisture below the surface
Sweetcorn uses plenty of water. Re-wet dry soil thoroughly, but avoid working it when saturated.
- 3
Top-dress rather than overfeed
Add a modest layer of mature compost where the next crop needs it. A laboratory-style nutrient assumption is less useful than observing the soil and successor.
Avoid a poor handover
Two details worth checking
Do not promise “nitrogen replacement”
Following with a legume does not instantly refill the soil for the crop growing beside it. Choose beans because the season and site fit.
Remove diseased debris
Do not leave badly diseased foliage around the bed. Clean stakes and supports before storing them.
Questions small growers ask
Specific answers for this handover
What can I plant after sweetcorn in September?
Winter spinach, rocket, lettuce and radish can use an early-September clearance. Later in the month, garlic or a suitable hardy broad bean becomes more realistic. Check your region, protection and packet window.
Does sweetcorn leave the soil depleted?
Sweetcorn makes strong growth and is commonly treated as a demanding crop, but the exact condition depends on the soil and feeding it received. Add mature compost where appropriate and match the next crop to the remaining season.
Can I leave sweetcorn roots in the ground?
Sound roots can be cut below the crown and left to decay if they will not obstruct planting. Remove roots where disease is suspected or where the next crop needs a clean planting hole.
Sources and scope
Checked growing guidance
Season, variety and local conditions can move a clearance date. SowNext uses these sources conservatively and keeps the exact-date tool as the final check.
Before sowing
Three checks matter more than a fixed list.
- CalendarWill the successor establish before its conservative regional cut-off?
- Crop familyChanging family is useful where pests or soil disease have been a problem.
- Space and lightA credible date is not enough if the crop cannot physically fit or receive enough sun.