Pennsylvania · zones 5b–7b
When to plant cherry tomatoes in Pennsylvania.
Sow or transplant between May 2 to Jul 2 in a typical year, keyed to Pennsylvania's median last frost around Apr 25. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Cherry Tomatoes dates for a typical Pennsylvania season.
1 · Start indoors
Mar 21 to May 21
About 6 weeks before set-out. Warm spot, real light.
2 · Set out
May 2 to Jul 2
Keyed to the ~Apr 25 last frost. Sow 0.25" deep, 24" apart.
Harvest
~57 days later
~8 lb per plant over ~10 weeks.
Pennsylvania spans more than one climate: Zone 6 is the most common zone, but the state runs 5b to 7b. That's why the planner works from your ZIP code's frost dates, not your zone: mountain and coastal gardens in the same state can be three weeks apart.
In Pennsylvania: watch for
The pests that find cherry tomatoes here.
A middle-length season, about 172 frost-free days, means tomato, cherry overlaps tomato hornworm for a stretch each summer. Check plants every week or two and treat early.
Big green caterpillars strip leaves and leave black droppings.
Organic fix: Handpick at dusk; spray Bt on the young ones.
Clusters on new growth, sticky leaves, curling tips.
Organic fix: Blast with water, then insecticidal soap or neem.
Dark spots with concentric rings, starting on the lowest, oldest leaves.
Organic fix: Remove affected leaves, mulch to stop soil splash, space for airflow.
Greasy, water-soaked blotches in cool, wet spells. No rings, and not bottom-up.
Organic fix: Pull infected plants fast, keep leaves dry, use neem as a preventive.
Septoria leaf spot
Many small tan spots with dark brown edges, low leaves first, no rings inside.
Organic fix: Strip the lowest leaves, mulch against soil splash, stake for airflow.
Your season math: Pennsylvania gives cherry tomatoes about 172 frost-free days, and it needs roughly 57 days to a first harvest. It's a one-planting crop, so time that single sowing well.
Planting cherry tomatoes in Pennsylvania: questions
When should I plant cherry tomatoes in Pennsylvania?+
In a typical Pennsylvania year, sow cherry tomatoes or set out transplants between May 2 to Jul 2, keyed to the state's median last frost around Apr 25. Your exact dates shift with your ZIP code and microclimate.
When do I start cherry tomatoes seeds indoors in Pennsylvania?+
Start seeds inside about 6 weeks before set-out: roughly Mar 21 to May 21 for a typical Pennsylvania season.
What USDA zone is Pennsylvania?+
Pennsylvania spans zones 5b–7b, mostly zone 6. But frost dates, not zones, set planting time. The free planner uses your ZIP code's actual frost dates.
How many cherry tomatoes plants do I need?+
Depends who you're feeding. The crop page has exact counts per household size, or the free planner does the math for your family in about 60 seconds.