SproutSmart
SproutSmart™ Intelligent Garden Sowing

When to Plant Dark Opal in Zone 1b

Family: Lamiaceae Herb
Zone 1b Save Garden

Planting Schedule

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

Get the exact Zone 1b 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 : 1b

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 20th
Last FrostJun 1st
Transplant / Sow OutdoorsJul 27th
Harvest BeginsSep 25th
Harvest EndsAug 1st

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

Durango Red Marigold
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Dolce Vita Basil
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Supersteak Tomato
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Early Girl Tomato
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African Basil Basil
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Marigold Marigold
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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.