Zone 9 · Tomatoes Growing Guide

When to Plant Roma Tomato
in Zone 9

Paste tomato with meaty flesh and low moisture — ideal for sauces, canning, and drying. Reliable producer with fewer disease issues than slicers.

Plant outdoors
Feb 1 – Mar 1
Start indoors
Dec 15 – Jan 15
Last Frost
~Jan 31
Days to harvest
73–80 days
Difficulty
Easy
Ready to harvest — Zone 9
Harvest window: Apr – Jul

Planting Calendar

In Zone 9, Roma Tomato should be planted outdoors Feb 1 – Mar 1, after the average last frost date of approximately Jan 31. Start seeds indoors around Dec 15 – Jan 15 for a head start.

Spring crop thrives. Summer heat kills fruit set — harvest what you have by July and let plants rest.

Care Guide

Sunlight
Full sun · 6–8 hrs/day
Watering
Moderate
Spacing
24–36 inches
Soil
Well-draining, fertile loam
Days to maturity
73–80 days
Soil pH
6.0–6.8
plant tip · Zone 9

Spring crop thrives. Summer heat kills fruit set — harvest what you have by July and let plants rest.

Feeding Schedule

How often
every 2 weeks
Feed type
tomato feed (high potassium)
Key timing
start when first flowers appear

Feed regularly but avoid excess nitrogen — Roma tomatoes need potassium for firm, meaty fruit.

Companion Planting for Roma Tomato

What you plant next to roma tomato makes a real difference — some plants actively help, others compete or attract pests.

Grows well with
  • Basil
  • Marigolds
  • Carrots
  • Garlic
Keep away from
  • Fennel
  • Brassicas
  • Corn

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Common questions

In Zone 9, start roma tomato seeds indoors around Dec 15 – Jan 15, then transplant outdoors Feb 1 – Mar 1 after your last frost around Jan 31. Spring crop thrives. Summer heat kills fruit set — harvest what you have by July and let plants rest.
Zone 9 has an average last spring frost of approximately Jan 31 and a first fall frost around Dec 15. These dates vary by specific location — use your ZIP code in the plant app for precision based on the nearest NOAA weather station.
Good companion crops for roma tomato include Basil, Marigolds, Carrots, Garlic. Avoid planting near Fennel, Brassicas, Corn, which can compete for nutrients or attract pests.
Roma Tomato typically takes 73–80 days from transplant or direct sow to harvest in Zone 9. Expected harvest window: Apr – Jul.

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Roma Tomato in other zones
Crop Guides