When should I plant Tomat, San Marzano in Zone 4b?

Start Tomat, San Marzano seeds indoors around Mar 20. Transplant outdoors after May 15. Expect first harvest around Jul 19.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is May 1. The first fall frost averages Oct 5, giving a 157-day growing season.

Can I grow Tomat, San Marzano in Zone 4b?

Yes. Tomat, San Marzano needs 80 days to harvest. Zone 4b has a 157-day growing season, which is sufficient.

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🍅 Growing Tomat, San Marzano in Zone 4b

Zone 4b has cold winters and a moderate growing season. Timing is key for Tomat, San Marzano in this zone. Siste frost: May 1. Første frost: Oct 5.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 20Oct 5

Season: May 1 – Oct 5 (157 dager)

Sone4b

Siste frostMay 1

Første frostOct 5

Sesong157 dager

Høst80 dager

SolFull Sol

When to Plant Tomat, San Marzano in Zone 4b

Start Seeds Indoors: Mar 20

Start Tomat, San Marzano seeds indoors around Mar 20 (6 uker før siste frost). Optimal germination temperature: 80F. Germinates in 6-14 days.

Transplant Outdoors: May 15

Transplant Tomat, San Marzano seedlings outdoors after May 15. Wait until soil temperature reaches 60F. Space plants at 1/m² (30cm avstand). Harden off plants for a week before moving outside.

Harvest: Jul 19

First harvest approximately Jul 19 (~65 dager from transplant). Continue harvesting until first frost (Oct 5).

Samdyrking

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Tomat, San Marzano in Other Zones

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Plan Your Garden Tomat, San Marzano

Track Tomat, San Marzano from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

Start Free Tomat, San Marzano Growing Guide