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When to plant catnip in Connecticut

Connecticut spans USDA zones 6a–7a, so the right time to plant catnip shifts by weeks across the state. The window to transplant seedlings outdoors runs from about April 5 in Bridgeport to May 8 in Torrington — below are local dates for 35 cities, each computed from its own frost dates.

In Bridgeportthe catnip transplant out window (April 5–April 19) has passed for this year.
CityZoneLast frostFirst frostTransplant out
Bridgeport7aApril 5November 6April 5 – April 19
Stamford7aApril 17October 23April 17 – May 1
New Haven7aApril 17October 27April 17 – May 1
Hartford6bApril 17October 26April 17 – May 1
Waterbury6bApril 26October 16April 26 – May 10
Norwalk7aApril 17October 23April 17 – May 1
Danbury6bMay 1October 14May 1 – May 15
New Britain6bApril 17October 26April 17 – May 1

Catnip in Connecticut: FAQ

When can I plant catnip in Connecticut?

Across Connecticut, the time to transplant catnip spans roughly April 5 in Bridgeport to May 8 in Torrington, each following that city's local frost dates.

Does the catnip planting date vary across Connecticut?

Yes. Connecticut publishes 35 cities with their own frost dates, so the right catnip planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.

Planting reminders

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An email when it’s time to start seeds, transplant, and sow — timed to your frost dates. Double opt-in, one-click unsubscribe, no spam.

Catnip planting guide →All Connecticut cities →Connecticut planting calendar →
When to Plant Catnip in Connecticut — Frost-Based Dates by City — BlissGarden