Sow corn salad in September for a harvest that outlasts winter
A few rows now, and you will be picking from October well into March. Corn salad is the least demanding plant in the autumn raised bed, and kids love harvesting the little rosettes.
In September the zucchini gets tired, the tomatoes ripen their last fruit, and space opens up in the raised bed. That moment belongs to corn salad. It asks for very little, shrugs off frost surprisingly well and delivers fresh green exactly when nothing else in the bed is growing.
Why September is the sweet spot
Corn salad can be direct-sown from August through October. September is where two things line up: the soil is still warm enough for quick germination, but no longer so hot that the seeds sulk. And the plants get enough time before the first frost to build sturdy rosettes.
Expect roughly 60 days from sowing to your first harvest. Sow in early September and you will be picking rosettes in early November. Sow later and you simply harvest later, possibly not until February or March when the plants pick up growth again in spring.
How to sow: shallow, generous, kid-friendly
Corn salad germinates best under a thin layer of soil — shallow, but covered. About half a centimetre is enough; bury it deeper and germination suffers. Draw shallow furrows with your finger or a stick, roughly 15 centimetres apart, scatter the seed and press it down only lightly.
Within the rows you can be generous: about 10 centimetres between plants is plenty. Sow more densely and you simply thin later, and the thinnings go straight into the salad bowl.
Sowing is a good job for children. The seeds are big enough to pick up, the furrows are visible, and because corn salad is forgiving, uneven sowing does no harm.
The first two weeks decide everything
The one thing corn salad genuinely needs is even moisture until it emerges. If the top layer of soil dries out during a sunny September week, germination becomes patchy, or fails altogether.
So for the first two weeks, water briefly every day rather than heavily twice a week. A thin fleece over the bed keeps moisture in and also keeps birds off, since they like to inspect freshly sown beds.
Once the rosettes are established, the demands flip. From then on corn salad is close to maintenance-free. It dislikes waterlogging in winter, which is why a raised bed with good drainage suits it better than a heavy, soggy corner of the garden.
What grew there before barely matters
Corn salad is a light feeder. It happily makes do with whatever tomatoes, cucumbers or brassicas left behind, which is exactly why it works so well as a follow-on crop in the September bed. You do not need to add fertiliser, and you should not: too much nitrogen makes the leaves soft and vulnerable.
As a neighbour, corn salad gets along well with strawberries and with brassicas. If you planted strawberries in August, the gaps between them are now perfect for a few rows of corn salad.
Harvesting: rosette by rosette, not all at once
Do not pick individual leaves. Cut the whole rosette just above soil level with a sharp knife so the small leaves stay together. The rest of the bed keeps growing, which means you harvest over weeks instead of in one afternoon.
Corn salad is genuinely frost hardy. Light frost does it no harm; many gardeners find it tastes milder and nuttier after the first cold nights. In prolonged hard frost, simply lay a fleece over the bed and you can still get to the greens in January.
Plan your winter into the bed now
The real skill with corn salad is not the sowing but the planning: if you know in September which patches will free up in October, you sow exactly there. In Rootivo you record the cleared spots directly in the bed planner and see at a glance where there is still room for a few rows.
And when you look out the window in January at a green raised bed while the rest of the garden sleeps, it feels like a small triumph every single time.
Im Lexikon: Feldsalat