Request a Catalog   |   Quick Order   |    E-mail Signup   |   1-877-564-6697
My Account   |   Wish List     Johnny's Selected Seeds Login
Package of Johnny's Selected Seeds
Package of Johnny's Selected Seeds
Organic Seeds & Supplies FREE STANDARD SHIPPING On Orders Over $200!*
 E-mail Signup

Disease Resistance:

HR

High Resistance

IR

Intermediate Resistance

FBR

Fusarium Basal Rot

PR

Pink Root

Symbols Explained

No additional symbols for this product.

White Castle
+

White Castle(F1) Onion Seed

3085

Product ID: 3085

Excellent color and disease resistance.

Jumbo, globe-shaped bulbs with bright white skins when cured properly. To maintain white color, cure in the field as briefly as possible or cure in a dark, warm, and dry area. Mild to moderate pungency. For short to medium storage (3-4 months). Adaptation: 30-38° latitude. High resistance to fusarium basal rot and pink root. Avg. 127,700 seeds/lb. Packet: 250 seeds.

Product Price Qty
3085Packet  $3.95 
30851,000 Seeds  $5.55 
30855,000 Seeds  $21.60 
308525,000 Seeds  $86.75 
308550,000 Seeds  $159.00 
3085100,000 Seeds  $245.00 

Quick Facts

Days to Maturity or Bloom:   105

 

Disease Resistance Codes:

IR: FBR,PR

Shipping Information & Notes

Growing Information

Onions



CULTURE: Onions require full sun and fertile, well-drained soil with a pH of 6.0-7.0. Sandy loam soils are ideal; raised beds or raised rows are recommended for heavier soils to promote soil drainage.
DIRECT SEEDING: In April or early May, or as soon as the soil can be prepared in early spring, sow in a 2" wide band, about 2 seeds/in., 1/4- 1/2" deep, rows 12-18" apart. Thin to 1 1/2-2" apart for highest yields in fertile soil. Thin to 3-4" apart for larger onions.
TRANSPLANTING: In short-season areas, sow seeds indoors in flats in late February to mid-March. Broadcast 1/2" apart and cover 1/4". Tops may be clipped to 5" tall. Transplant to the garden 4" apart, or sow 5 seeds in each cell of 1-1 1/2" diameter plug trays, thinning to 3 per cell. Transplant each cell 6" apart.
CULTIVATION: Keep onions well weeded with shallow cultivation.
WATER: Onions are shallow rooted and grow best with at least 1" per week of rain or irrigation, especially during the bulbing phase.
DISEASES: Adequate air circulation and crop rotation aids in reducing the risk of foliar disease
HARVEST: When necks become soft and tops are falling over, pull and sun-cure at least 2-7 days, depending on weather. Move to a protected location to finish drying.
STORAGE: When dry, clip off tops and roots and store in onion bags or shallow boxes at near freezing and 65-70% humidity.
DAY LENGTH: Onion bulbing is triggered by day length, and maximum day length during the growing season increases from south to north. Short-day onions are grown at lower latitudes in the South, while intermediate and long-day onions are grown at higher latitudes. Refer to "Adaptation" in each variety description for details.
DAYS TO MATURITY: From direct seeding; subtract 10-15 days if transplants are used.
AVG. DIRECT SEEDING RATE: 1 oz./25', 1M/50', 5M/250', 25M/1,250', 580M/acre @ 20 seeds/ft., in rows 18" apart.
TRANSPLANTS: Avg. 1 oz./4,900 plants, 1 lb./78,750.
SIZED SEEDS: Standard on all varieties.
SEED SPECS: SEEDS/LB.: 96,900-127,700 (avg. 112,000).
PACKET: 250 seeds, sows 12' or makes 140 plants.


Recently Viewed

SHOP WITH CONFIDENCE AND SECURITY AT JOHNNY'S.

Choose Your Shipping Date

Please enter your zip code or select a hardiness zone from the menu below to view the recommended shipping date.

You may also manually select a ship date below.

Ship Date:
Want to change your ship date? Click on the drop down box and choose a different date.
×

Plant Shipping

Message

Would you like to ship these plants together? Yes No

Incompatable lead time. Please select a new date for both items.

×
Johnny's Selected Seeds Email Contest Gift Certificate Give Away
Johnny's Farm Crew
Thank you for signing up for growing tips, exclusive offers, and new product info. Close