How to Grow Onion Sets

Make planting and maintaining onion sets a cinch with this step-by-step guide.

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Store Dried Onions and Check Often for Decay

Store Dried Onions and Check Often for Decay

After bulbs dry, cut tops, and place bulbs in dry storage with good air circulation. Store under cool, dry conditions. Dry onions may keep until late winter, but check them regularly and use or discard those that begin to soften or show signs of disease.

©2011, Dorling Kindersley Limited

2011, Dorling Kindersley Limited

Materials Needed

  • onion sets
  • garden containers (optional)
  • watering can or garden hose
  • plastic cover

Step 1: Plant the Onion Sets

Plant Onion Sets with Pointed Side Up

Plant Onion Sets with Pointed Side Up

Growing onions from sets is probably the simplest method for the home gardener. The plants are quickly established and become vigorous and strong. Plant set with pointed side up, pushing them lightly into base of shallow drill.

©2011, Dorling Kindersley Limited

2011, Dorling Kindersley Limited

Plant onion sets pointed-end up, pushing them lightly into the base of shallow drills. They can also be planted in containers for a small crop.

Step 2: Provide Light Maintenance

Onions Need Little Care During Growing Season

Onions Need Little Care During Growing Season

Keep onions free from weeds by shallow cultivation and hoeing. Keep onions watered well, and check them for signs of disease.

©2011, Dorling Kindersley Limited

2011, Dorling Kindersley Limited

Onions need little routine care during the growing season. Keep them well weeded, but water only when established. Check them for signs of disease.

Step 3: Dry the Bulbs

Leave Pulled Onions On Soil Surface to Dry

Leave Pulled Onions On Soil Surface to Dry

Pull the mature onions in the morning and allow the bulbs to air dry in the garden until late afternoon. Before evening dew falls, place them under dry shelter on elevated slats or screens or hang them in small bunches.

©2011, Dorling Kindersley Limited

2011, Dorling Kindersley Limited

Wait until the crop is ready to store, then leave the bulbs on the soil surface to dry. Cover large crops if rain is predicted; small crops can be brought under cover.

Step 4: Check Stored Onions for Disease or Decay

Store Dried Onions and Check Often for Decay

Store Dried Onions and Check Often for Decay

After bulbs dry, cut tops, and place bulbs in dry storage with good air circulation. Store under cool, dry conditions. Dry onions may keep until late winter, but check them regularly and use or discard those that begin to soften or show signs of disease.

©2011, Dorling Kindersley Limited

2011, Dorling Kindersley Limited

Don’t compost discarded bulbs since some diseases spread easily and are tricky to control.

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