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When to Plant Dark Opal in Zone 1a

Family: Lamiaceae Herb
Zone 1a Save Garden

Planting Schedule

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

Plan your Dark Opal harvest with precision. Below is the exact Zone 1a planting schedule, frost dates, and recommended companion crops.

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Read Botanical Guide
Botanical illustration of Dark Opal

Crop Dates : 1a

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 IndoorsMay 4th
Last FrostJun 15th
Transplant / Sow OutdoorsAug 10th
Harvest BeginsOct 9th
Harvest EndsJul 15th

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

Moonsong Deep Orange Marigold
View Guide →
Osmin Purple Basil
View Guide →
Valiant Tomato
View Guide →
Cherry Chocolate Tomato
View Guide →
Tulsi Wildlife Basil
View Guide →
Fireball 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.