SproutSmart
SproutSmart™ Intelligent Garden Sowing

When to Plant Rubinstern (Ruby Star) in Zone 4a

Family: Asteraceae Herb
Zone 4a Save Garden

Planting Schedule

Add Rubinstern (Ruby Star) to your garden to build a schedule and get reminders.

Plan your Rubinstern (Ruby Star) harvest with precision. Below is the exact Zone 4a planting schedule, frost dates, and recommended companion crops.

Looking for comprehensive growing guides, pest control, and watering schedules?

Read Botanical Guide
Botanical illustration of Rubinstern (Ruby Star)

Crop Dates : 4a

Growing note: This crop establishes over multiple seasons (~70 days / ~1 year to first harvest). Plant on the frost schedule; first harvest follows establishment, not a single frost-free season.
MilestoneDate
Start IndoorsMar 20th
Last FrostMay 15th
Transplant / Sow OutdoorsJun 26th
Harvest BeginsSep 4th
Harvest EndsSep 24th

Garden Alerts

This crop establishes over multiple seasons (~70 days / ~1 year to first harvest). Plant on the frost schedule; first harvest follows establishment, not a single frost-free season.

Recommended Companions

Prairie Sun Black-eyed Susan
View Guide →
Cherry Brandy Coneflower
View Guide →
Rose Rhapsody Salvia
View Guide →
Toto Black-eyed Susan
View Guide →
Rhapsody In Blue Salvia
View Guide →

Garden Alerts

This crop establishes over multiple seasons (~70 days / ~1 year to first harvest). Plant on the frost schedule; first harvest follows establishment, not a single frost-free season.