When should I plant Tomaatti, San Marzano in Zone 9a?

Start Tomaatti, San Marzano seeds indoors around Feb 6. Transplant outdoors after Apr 3. Expect first harvest around Jun 7.

What is the last frost date for Zone 9a?

The average last spring frost date for Zone 9a is Mar 20. The first fall frost averages Nov 12, giving a 237-day growing season.

Can I grow Tomaatti, San Marzano in Zone 9a?

Yes. Tomaatti, San Marzano needs 80 days to harvest. Zone 9a has a 237-day growing season, which is sufficient.

🍅

🍅 Growing Tomaatti, San Marzano in Zone 9a

Zone 9a has warm winters and an extended growing season -- excellent for heat-loving crops like Tomaatti, San Marzano. Viimeinen halla: Mar 20. Ensimmäinen halla: Nov 12.

Planting Calendar

Indoor

Outdoor

Harvest

Feb 6Nov 12

Season: Mar 20 – Nov 12 (237 päivää)

Vyöhyke9a

Viimeinen hallaMar 20

Ensimmäinen hallaNov 12

Kausi237 päivää

Sato80 päivää

AurinkoTäysi Aurinko

When to Plant Tomaatti, San Marzano in Zone 9a

Start Seeds Indoors: Feb 6

Start Tomaatti, San Marzano seeds indoors around Feb 6 (6 viikkoa ennen viimeistä hallaa). Optimal germination temperature: 80F. Germinates in 6-14 days.

Transplant Outdoors: Apr 3

Transplant Tomaatti, San Marzano seedlings outdoors after Apr 3. Wait until soil temperature reaches 60F. Space plants at 1/m² (30cm välein). Harden off plants for a week before moving outside.

Harvest: Jun 7

First harvest approximately Jun 7 (~65 päivää from transplant). Continue harvesting until first frost (Nov 12).

Kumppaniviljely

✅ Valkosipuli✅ Parsa✅ Basilika✅ Porkkanat✅ Samettikukat✅ Paprikat✅ Sipulit

❌ Perunat❌ Fenkoli❌ Maissi❌ Kyssäkaali

Tomaatti, San Marzano in Other Zones

1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13b

Plan Your Garden Tomaatti, San Marzano

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

Start Free Tomaatti, San Marzano Growing Guide