SproutSmart
SproutSmart™ Intelligent Garden Sowing

When to Plant White Castle in Zone 4a

Family: Amaryllidaceae Vegetable

Planting Schedule

Add White Castle to your garden to build a schedule and get reminders.

Get the exact Zone 4a timeline for your White Castle. See localized frost dates, indoor sowing windows, and optimal companions below.

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Explore White Castle Data
Botanical illustration of White Castle

Crop Dates : 4a

MilestoneDate
Start IndoorsDirect Sow
Last FrostMay 15th
Transplant / Sow OutdoorsMay 8th
Harvest BeginsSep 5th
Harvest EndsSep 24th