Best Onion Set Varieties: Yellow, Red, White, Long-Day & Short-Day

The best onion set variety depends on where you garden, when you plant, and how you plan to use your harvest. Start by matching the onion’s day length to your growing region, then choose a color and flavor that fits your kitchen.

When you choose onion sets, you are getting a convenient head start. Plant them for fresh salad onions, let them size up into full bulbs, or grow several varieties for a more useful harvest.

fresh grown onions

Choose Onion Sets by Day Length

Onions form bulbs in response to the amount of daylight they receive. Choosing the wrong day-length type for your location can lead to poor bulb development.

  • Long-day onions: Usually best for northern areas with long summer days. They begin bulbing when daylight reaches roughly 14–16 hours.
  • Short-day onions: Usually best for southern areas with milder winters and shorter summer day length. They begin bulbing at roughly 10–12 hours of daylight.
  • Intermediate-day onions: Often a good fit for middle latitudes and transitional growing regions.
  • Day-neutral onions: Can be more flexible across growing regions because they are less dependent on a specific daylight threshold.

Always check the growing recommendations for the specific set variety and compare them with your location. If you are unsure, local planting guidance can help you choose the best match.

Yellow Onion Sets

Yellow onions are a dependable all-purpose choice. They are useful for cooking, often store well when fully matured and cured, and are a strong option for gardeners who want one versatile crop.

Yellow Stuttgarter

Yellow Stuttgarter is known for firm, flattened bulbs and a rich onion flavor. Updated growing guidance recognizes Stuttgarter as viable for both long-day and day-neutral growing conditions, making it a more flexible choice than older guidance suggests.

Choose Yellow Stuttgarter sets if you want an everyday cooking onion that can also be stored after a proper cure. As with any set, check the specific offering’s growing recommendations for your garden.

Red Onion Sets

Red onions add color and a milder bite to salads, sandwiches, grilling, and fresh recipes. Many red onions can also be stored for a period of time when harvested at maturity and cured correctly.

Red Wethersfield

Red Wethersfield is a popular red onion known for deep color and strong garden performance. It is often selected by gardeners who want a flavorful red storage onion, especially in regions where its day-length needs are a good match.

Choose Red Wethersfield sets for a colorful crop that works well fresh and can provide useful storage after curing.

Red Baron

Red Baron is another popular red onion choice for gardeners who want richly colored bulbs with a versatile kitchen harvest. Use the variety’s regional growing recommendations to confirm that its day-length needs match your garden.

Choose Red Baron sets for salads, sandwiches, cooking, and a bright red addition to your onion planting.

White Onion Sets

White onions are a useful choice for fresh eating, cooking, and mild onion flavor. Their crisp color makes them especially appealing for salads and recipes where you want the onion to look clean and bright.

White Ebenezer

White Ebenezer is a classic white onion type that gardeners grow for firm, bright bulbs and a versatile kitchen harvest. It is also considered a day-neutral option, giving it useful flexibility across growing regions. Give the sets full sun, steady moisture, and room to size up.

Salad onions container grown

Which Onion Sets Are Best for Salad Onions?

Almost any suitable onion set can be harvested young, but sets are particularly convenient for growing salad onions because they establish quickly. Plant smaller batches every 2 weeks for a steady supply, or plant sets in containers indoors year-round for fresh green tops.

Which Onion Sets Are Best for Storage?

For storage, choose a variety suited to your day length and growing zone, then let the bulbs mature fully. Harvest when the tops naturally yellow and fall over, cure the bulbs in a warm, dry, well-ventilated place, and store them only after the outer skins and necks are dry.

How to Choose the Best Sets

  • Match the variety’s day length to your growing region.
  • Choose yellow for an all-purpose cooking crop, red for color and fresh flavor, or white for a crisp, mild harvest.
  • Select firm, dry sets with no mold, soft spots, or active sprouting.
  • Smaller sets are often a safer choice when you want to reduce the risk of premature bolting.
  • Plant in full sun and well-drained soil, with the pointed end facing up.

For more help with timing and technique, read our guide to growing onions from sets. Shop onion sets and choose a variety for your garden.
5268
91