One Simple Planting Trick for Green Onions That Won’t Quit — Thick, Juicy Greens From Spring to Fall

Forget the store scallions. With a little timing and the right onions, one modest bed can throw greens at you from spring to fall. Four cuts in one season is absolutely on the table. Here is the no-fuss game plan I use to keep the shears busy.

When to start

In open ground, plant in the second half of April or the start of May. The simple rule of thumb: at 4-5 cm depth, soil temp should sit at 6-8 °C or warmer. For a steady supply, stagger a few rounds of planting. Early and mid-early varieties work well up to mid-summer. Late August is a window for only the quickest early types.

What to plant

For greens, multi-sprout onions are the productivity stars. Each bulb carries several primordia - sometimes up to eight - so one bulb can push a small bouquet of leaves. That payoff dwarfs standard storage onions. Reliable multi-sprout names to look for: Stuttgarter Riesen, Bessonovsky, Rostovsky, Strigunovsky, Arzamassky, Spassky.

Shallots are extremely efficient for greens too. Welsh onion, also called batun, bounces back several times a season and packs more vitamin C than typical onion leaves. For sets, pick medium bulbs about 3-4 cm across.

Prep, planting, first steps

Before planting, slice about 0.5 cm off the tip of each bulb. It wakes them up faster and makes it easy to weed out any that are soft or compromised. Then soak the sets in warm water for a few hours.

Two ways to plant

• Bridge method - best for greens: set bulbs shoulder to shoulder, almost touching. Press them in lightly so the top half sits above the surface. Roots will reach down on their own, and each bulb feeds its own leaves. Beds fill into a quick green carpet with barely any room left for weeds.
• Row method: space bulbs 5-6 cm apart with 20-30 cm between rows. Right after planting, a 1% Bordeaux mix helps with disease prevention - 10 g per 1 liter of water.

Care that keeps the bed producing

Water: onions like consistently moist soil with good drainage. Keep the bed on the moist side until mid-July. After that, scale back a bit so the leaves stay crisp rather than watery.

Feeding: less is more. If you prepped the bed in fall, the bulb’s own reserves carry a lot of the early growth. Wood ash is a clean boost - 100-200 g per square meter worked into the soil. If growth looks sluggish, water with an ash solution: 1 cup of ash per bucket of water.

Harvest: cut when leaves hit about 25 cm. Pause watering 4-5 days before you plan to harvest - the greens firm up and store longer.

How the four rounds happen: start early as soon as soil temps cooperate, plant in waves, mix in fast early varieties, and lean on regrowth champs like batun. That rhythm keeps fresh leaves coming from spring to deep into fall.

Soil, rotation, and simple protection

Rotation pays off. Follow crops like cucumbers, zucchini, tomatoes, and cabbage with onions. That sequence supports healthier soil and fewer problems.

Soil specs: neutral reaction is the sweet spot - pH 6.5-7.5 - and a bed that drains well. In fall, work in humus at roughly one bucket per square meter, plus superphosphate and potassium chloride. In spring, loosen and level before planting.

Pest hacks that punch above their weight: sprinkle dry mustard meal in the interrows to shoo away onion flies and other pests. Regular dusting with tobacco dust also works. Old-school, cheap, and often more effective than a lot of modern bio-products.