Long-Day Onion Variety Plant Bundle

Onions are heavy feeders and will require significant nutrient inputs throughout their lifespan. We recommend feeding them with our 20-20-20 and Calcium Nitrate fertilizers. Fertilize with 20-20-20 shortly after transplanting. The phosphorous and potassium in the 20-20-20 fertilizer will help to promote solid root development, while the nitrogen will promote vegetative growth. Once transplants are established, we recommend side-dressing or injecting with our Calcium Nitrate fertilizer. Side dress or inject 1 cup per 20 feet of linear row every 3-4 weeks after transplanting.

Onion Planting Information

Planting Method: transplant

When to Plant: Late Winter/ Early Spring

Planting Depth: 1/4"

Seed Spacing: 4"

Row Spacing: 12-18"

Be sure to check out our Onion Growing Guide for helpful tips & tricks on how to successfully grow onions in your garden.