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Sierra Blanca Onion
Sierra Blanca Onion

Sierra Blanca Onion Plant Bundle

$1799
  • Sierra Blanca Onion – A hybrid, intermediate-day white onion.
  • Produces jumbo to colossal, globe-shaped white onions with a snowy-white exterior.
  • A great variety for backyard gardeners and market farmers.
  • 110 days to maturity.
  • Allium cepa.
  • 50, 150, 450, 1,500 plant bundle variations available.
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Due to strict California Department of Food and Agriculture (CDFA) regulations and quarantine protocols, we are no longer able to ship onion plants to California.

This item qualifies for Free USA Shipping

Orders $99+ get Free USA Shipping

Description

Sierra Blanca Onion is a hybrid, intermediate-day onion with bright white, snowy scales that makes it a great variety for the home gardener and small-scale market farmer. This white onion variety consistency produces huge globe-shaped onions that are in the jumbo to colossal size range.

Intermediate-day Onions

Plant in late winter for an early summer harvest

Start the bulbing process when day length reaches 12-14 hours

Growing Information

EOnion Planting Guide

Select an onion variety based on your geographical location. In many cases, intermediate-day varieties can be grown in southern long-day regions and northern short-day regions.

Intermediate-day Onions

Plant in late winter for an early summer harvest

Start the bulbing process when day length reaches 12-14 hours

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 transplantingSierra Blanca Onion Planting Information

Planting Method: transplant

When to Plant: Late Winter/ Early Spring

Planting Depth: 1/4″

Seed Spacing: 4″

Row Spacing: 12-18″

Days to Maturity: 110

Disease Resistance: Pink Root Rot