White Grano

Onion

95d to harvest

Sweetly fragrant and delicately mild, White Grano forms pristine, ivory-white bulbs with a crisp, fine-grained snap and a clean, juicy bite. At maturity, the skins stay smooth and tight, making the bulbs ideal for fresh use as well as roasting until they turn tender and caramel-kissed. Grow White Grano for a refined, market-class white onion that shines in salads, savory sauces, and pickled preparations alike—its gentle flavor keeps every dish bright and balanced.

Crop Dates

Milestone	Date
Start Indoors	Mar 16th
Last Frost	May 25th
Transplant / Sow Outdoors	May 11th
Harvest Begins	Aug 14th
Harvest Ends	Aug 29th

Crop Details

Trait	Value
Days to Maturity	95
Sun Requirements	Full Sun
Growth Habit	Bulbing
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	45
Min Night Temp (°F)	28
Harden Off (days)	6

Recommended Companions

Danvers Carrot

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Chioggia Guardsman Beet

Pineapple Tomato

Little Gem Darky Lettuce

Black Krim Tomato

Frequently Asked Questions

White Grano onion: How often should I water during the main growing phase to keep bulbs forming well?

During bulb formation, keep soil consistently evenly moist but not soggy—aim for about 1 inch of water per week, adjusted for your rainfall and heat. Let the top 1–2 inches dry slightly between waterings to avoid rot, especially around the crown. Stop or sharply reduce watering about 2–3 weeks before harvest so the necks dry down and bulbs cure properly.

White Grano onion: How can I tell when it’s ready to harvest at ~95 days?

Harvest when about 50–70% of the plants have fallen over and the necks are soft but starting to dry, usually around the listed 95 days for your crop. Gently lift one bulb to check: skins should be papery and well-colored, with firm bulbs and minimal green showing at the top. Harvest on a dry day, then cure the onions in a warm, airy place out of direct rain until necks are tight and skins are fully papery.