Zone 10 · Tomatoes Growing Guide

When to Plant Grape Tomato
in Zone 10

Oval, thick-walled little tomatoes with a lower water content than cherry types — less splitting after rain. Very prolific and excellent for snacking and salads.

Plant outdoors
Jan 15 – Feb 15
Start indoors
Nov 15 – Dec 15
Last Frost
~Jan 15
Days to harvest
60–70 days
Difficulty
Easy
Ready to harvest — Zone 10
Harvest window: Mar – Jun, Oct – Dec

Planting Calendar

In Zone 10, Grape Tomato should be planted outdoors Jan 15 – Feb 15, after the average last frost date of approximately Jan 15. Start seeds indoors around Nov 15 – Dec 15 for a head start.

Cool season focused. Shade cloth helps extend the spring season.

Care Guide

Sunlight
Full sun · 6–8 hrs/day
Watering
Regular
Spacing
24–36 inches
Soil
Rich, well-draining loam
Days to maturity
60–70 days
Soil pH
6.0–6.8
plant tip · Zone 10

Cool season focused. Shade cloth helps extend the spring season.

Feeding Schedule

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

Light feeder compared to beefsteak types. Consistent feeding produces sweeter fruit.

Companion Planting for Grape Tomato

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

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

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Common questions

In Zone 10, start grape tomato seeds indoors around Nov 15 – Dec 15, then transplant outdoors Jan 15 – Feb 15 after your last frost around Jan 15. Cool season focused. Shade cloth helps extend the spring season.
Zone 10 has an average last spring frost of approximately Jan 15 and a first fall frost around Dec 31. 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 grape tomato include Basil, Carrots, Marigolds, Parsley. Avoid planting near Fennel, Brassicas, Corn, which can compete for nutrients or attract pests.
Grape Tomato typically takes 60–70 days from transplant or direct sow to harvest in Zone 10. Expected harvest window: Mar – Jun, Oct – Dec.

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Grape Tomato in other zones
Crop Guides