Texas Early Grano

Onion

Zone 10a Save Garden

Botanical illustration of Texas Early Grano

🌱 90d to harvest Bulbing

Sun-warmed and sweet from the start, Texas Early Grano forms tender, golden bulbs with a softly layered bite and a clean, aromati…

Crop Dates

Milestone	Date
Start Indoors	Dec 5th
Last Frost	Jan 16th
Transplant / Sow Outdoors	Jan 9th
Harvest Begins	Apr 9th
Harvest Ends	Dec 19th

Crop Details

Trait	Value
Days to Maturity	90
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)	5

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Frequently Asked Questions

What pest or disease commonly affects Allium cepa (Texas Early Grano) and how can I control it?

Onions (Allium cepa) are especially prone to purple blotch (Alternaria porri) and downy mildew when leaves stay wet. Improve airflow by spacing plants, water at the soil line (not over the foliage), and remove heavily spotted leaves early to slow spread. If the problem persists, use a labeled sulfur or copper fungicide at the first signs and repeat according to label directions.

How often should I water Texas Early Grano during the main bulb-growing phase?

During bulb swelling (roughly mid-season through the last several weeks), keep the soil consistently evenly moist but not soggy—about 1 inch (2.5 cm) of water per week split into 1–2 deep irrigations. If the soil dries out completely, bulbs can stall and split; if it stays wet, disease risk rises. Check by feel 2–3 inches down—water when it’s dry at that depth, and taper once tops begin to yellow.

How do I know when Texas Early Grano onions are ready to harvest?

Harvest when most of the tops (typically about 50–70%) have fallen over and the necks start to dry down, usually around 90 days. Gently lift one bulb to confirm the skin is tight and papery and the bulb size feels fully formed. Stop watering 1–2 weeks before harvest so the necks dry for better curing and storage.

Sun-warmed and sweet from the start, Texas Early Grano forms tender, golden bulbs with a softly layered bite and a clean, aromatic finish. Expect a mild, juicy sweetness that shines fresh, while its crisp texture holds beautifully for quick sautés and caramelizing-style browning in the pan. A warm-season favorite for gardeners who want early harvest satisfaction—90 days to maturity with bulbs that reward attentive thinning and steady growth.

Sowing Tips

Transplant Conditions

Wait until soil reaches 45°F and nights stay above 28°F before moving outdoors. Harden off for 5 days first.

Expert Note

For Texas Early Grano (502), start transplants early enough to establish a strong root system, then avoid transplanting too late so bulbs can size before summer heat.