October hits and the garden looks like a total battlefield. The tomato plants are blackening from early blight, the pea nets are tangled with dead vines, and the ground is littered with half-rotten windfall apples.
It is tempting to throw the trowel in the shed, lock the back door, and pretend the garden doesn’t exist until April. But if you want an early harvest next May while everyone else is still waiting for their spring seeds to sprout, October is your most important month of the year.
What Can You Sow in October?
You can sow garlic, autumn onion and shallot sets, Aquadulce Claudia broad beans, winter spinach, and hardy winter salad greens in October. The air is cool, but the soil retains just enough summer warmth for roots to anchor down before winter dormancy sets in.
Missed the previous sowing window? Check out our September sowing field notes -> Gardening
October Sowing vs. Spring Reality
| What Gardening Books Claim | What Actually Happens in UK Soil |
| “Enjoy crisp, dry autumn days preparing pristine seed beds.” | You’re dodging freezing October downpours, muddy boots, and two chaotic school runs. |
| “Garlic shoots will emerge neatly in 2–3 weeks.” | Squirrels dig up half your cloves thinking you buried nuts for them. |
| “Winter greens provide fresh salad all season.” | Growth halts completely by late November; what grows now is your winter reserve. |
Field Notes: The Mistakes I Made Last Autumn
- Planting supermarket garlic: I popped a leftover bulb from the supermarket veg drawer straight into the dirt three years ago. Supermarket garlic often carries hidden viruses and isn’t adapted to damp UK winters. It rotted into gray mush by January. Buy proper certified disease-free outdoor planting sets instead.
- Forgetting the birds: Pigeons treat freshly planted autumn onion sets like a game of lawn darts. They fly down, yank them out by the dry tips, and leave them dying on the surface. Put net covers over them until the roots grip the soil.
- Leaving soil bare: Rain in October and November will leach every nutrient out of exposed dirt. If I’m not sowing a crop in a bed, I cover it with a heavy 2-inch layer of well-rotted manure or compost.
[WORDPRESS IMAGE BLOCK – Alt text: Individual garlic cloves laid out on dark compost ready to be pushed into the soil]
The Crops Worth Your Time in October
1. Garlic (Hardneck & Softneck)
Garlic needs a prolonged cold snap—known as vernalization—to trigger the single clove to split into a full bulb of individual cloves.
Push individual cloves blunt-end-down into loose soil, roughly 2 inches (5cm) deep and 6 inches (15cm) apart.
2. Overwintering Broad Beans (‘Aquadulce Claudia’)
Sowing broad beans now gives you a massive head start over spring sowings. The key is using the right variety: Aquadulce Claudia.
Pop seeds 2 inches deep directly into the ground. They will sprout, grow 3–4 inches high, and sit completely still through snow and frost before exploding into growth in March.
3. Autumn Onion & Shallot Sets
Sets are miniature bulb rockets ready to take off. Plant them so just the tiny pointed tip pokes above the soil surface. Space them 4 inches apart in rows.
4. Winter Salads (In Pots or Under Cover)
Corn salad (lamb’s lettuce), land cress, and winter purslane don’t care about the cold. Sow them into trough planters or under a cheap plastic cloche. You won’t get rapid growth, but you’ll get steady, peppery leaves for sandwich toppers right through to spring.
October Seasonal Action Checklist
- [ ] Clear the rot: Pull out spent tomato, courgette, and cucumber vines to stop fungal spores lingering.
- [ ] Plant garlic cloves: Get them 2 inches deep before the ground gets waterlogged.
- [ ] Net your onion sets: Cover fresh sets with mesh to stop birds pulling them up.
- [ ] Mulch bare beds: Spread a 2-inch layer of compost over unplanted soil to lock in nutrients.
- [ ] Clean your tools: Scrape the dried mud off your spade and oil the secateurs before storing them away.
