SproutSmart
SproutSmart™ Intelligent Garden Sowing

When to Plant Dark Opal in Zone 2a

Family: Lamiaceae Herb
Zone 2a Save Garden

Planting Schedule

Add Dark Opal to your garden to build a schedule and get reminders.

Get the exact Zone 2a timeline for your Dark Opal. See localized frost dates, indoor sowing windows, and optimal companions below.

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Botanical illustration of Dark Opal

Crop Dates : 2a

Growing note: This crop establishes over multiple seasons (~60 days / ~1 year to first harvest). Plant on the frost schedule; first harvest follows establishment, not a single frost-free season.
MilestoneDate
Start IndoorsApr 13th
Last FrostMay 25th
Transplant / Sow OutdoorsJul 20th
Harvest BeginsSep 18th
Harvest EndsAug 29th

Garden Alerts

This crop establishes over multiple seasons (~60 days / ~1 year to first harvest). Plant on the frost schedule; first harvest follows establishment, not a single frost-free season.

Recommended Companions

Taishan Yellow Marigold
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Genovese Red Freddy Basil
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Homestead 500 Tomato
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Chocolate Cherry Tomato Tomato
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Window Box Basil
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Moonsong Deep Orange Marigold
View Guide →

Garden Alerts

This crop establishes over multiple seasons (~60 days / ~1 year to first harvest). Plant on the frost schedule; first harvest follows establishment, not a single frost-free season.