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San Marzano Tomato Plant

8.95

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16 review(s) | Add your review

- Spacing: 36 inches
- Days to Harvest: 70
- Production: Indeterminate
- At least 6–8 hours of sunlight
- Each 3-Inch Pot contains 1 San Marzano Tomato Plant

Plant Features

San Marzano tomatoes are garden staples, celebrated for their elongated, meaty fruits that define Italian cuisine. This heirloom variety yields bright red tomatoes weighing 4 to 6 ounces, with thick, firm skin—perfect for sauces, canning, or roasting. The flesh is dense and low in seeds, delivering a rich, sweet tomato flavor with a balanced tang.

Why grow San Marzano? From Italy’s Campania region, this indeterminate plant reaches 4–6 feet with support, producing a plentiful crop through the season. It’s a vigorous pick for gardeners wanting authentic, tasty tomatoes with no notable disease resistance, thriving until frost.

Grown naturally and pesticide-free, our San Marzano starter plants arrive strong and ready to perform in your garden. Nurtured with care, they deliver a robust harvest of these iconic tomatoes.

Attribute name	Attribute value
Growing Guide
When to Plant	Transplant in frost-free weather, nights above 45°F (spring or late summer)
Soil Setup	Use loose, well-draining soil, pH 6.0–6.8, with compost or manure (fall prep ideal)
Watering Tips	Soak in-ground plants deeply 1–2 times weekly (unless rain suffices), keep leaves dry if evening; keep containers moist, up to twice daily in heat
Feeding Your Plants	Apply a balanced fertilizer or our recommended Espoma Tomato-tone at planting and every 3 weeks thereafter
Shaping & Support	Prune suckers (side shoots between stem and branches) if desired—it’s optional. Support plants with stakes or cages
Pest & Disease Control	Check for tomato hornworms (look for chewed leaves). Watch for blight or fungal issues, and treat with Serenade Garden Disease Control or copper fungicide if needed
When to Harvest	Skin yields slightly to finger pressure and fruit reaches its mature color
Storing Your Harvest	Store at room temp up to 1 week

Attribute name	Attribute value
Plant Characteristics
Plant Type	Heirloom: Handed down for generations; seeds breed true
Growth	Vigorous, 4–6 feet with support
Habit	Sprawling growth pattern - Low, wide spread
Foliage Color	Green leaves
Flower Type	Produces small, yellow, star-shaped flowers that typically grow in clusters; flowers are self-pollinating but may benefit from gentle shaking or pollinator activity to improve fruit set
Production Time	Fruit ripens throughout the season
Tomato Companions	Carrots loosen soil for tomato roots, chives improve flavor and repel pests, garlic bulbs and onions deter pests, marigolds block nematodes and other pests, and parsley attracts beneficial insects
Plant Use	Grown for food production

Product Reviews

5.0

16 review(s)

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Top Reviews

C ould not believe it

This plant just keeps putting more and more tomatoes on it. I have had to use so many claps and zip ties to hold the clusters of heavy tomatoes up so they will not break. I know when they ripen I will be canning tomatoes. I will get 2 of these plants next year.

From elaine | September 20, 2024

San marzano

First year growing these. In 2 weeks plants have tripled in size and have tons fo tiny buds and flowers can't wait to get tomatoes!

From Keelin | August 22, 2024

San marzano tomatoes

I was blown away by the quality and carcareful packaging. Opening that box and smelling that fresh tomato plant sweet smell was amazing!! These plants were fresh, the soil was still moist, so carefully packages! I am smitten with growjoy!!!

From Kathy | August 06, 2023

San Marzano Tomoto

I purchased tomato plants last year and loved them. The plants are packed well and the plants are healthy upon arrival. I got a great harvest last year and by the looks of the plants, I should get another one this year. Order early, they sell out fast.

From Joan | May 04, 2023

2nd year in a row

I am beyond impressed with my purchases back for the second year and this will not be my last. This is the best quality by far I highly recommend

From Jennifer | March 30, 2023

San Marzano

Absolutely pleased with my purchase and my plants are doing GREAT thank you

From Cassidy | September 15, 2022

Five stars

I transplanted this four weeks ago, and it's already got a ton of blossoms and tomatoes. Very pleased.

From Susan | June 28, 2022

Beautiful

Real healthy looking tomatoes.

From Joseph | May 06, 2022

Plants

Plants looked great

From Joan | March 05, 2021

Greenhouse tomatoes

First time to do tomatoes in winter, in my greenhouse. Box Car Willie, Cherokee Purple & Rutgers, all doing super. I have Christmas tomatoes and they are beautiful. Thanks Grow Joy! Looking forward to the San Marzano's in Spring.

From anonymous | December 23, 2020

San Marzano Tomato

Plant arrived healthy looking. I'm always impressed with the quality of the plants delivered. Can't wait to see it grow!

From Olga | May 08, 2020

Healthy

These plants came healthy and appear to be in great shape! I can’t wait to get them in the ground and see how they produce. Always excellent products from GrowJoy. They are my favorite!

From Amanda | March 19, 2020

San Marzano Tomatoes

My inky inline shop to growing my plants is Grow Joy. Products arrive before time often in well preserved cartons and ready to place in ground. Great quality great service.

From Kimberly | August 10, 2019

Tomatoes

Great quality I will be buying more

From curtis | April 19, 2019

greenhead

quality and price can't be beat

From Deborah | June 01, 2018

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