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Marglobe tomatoes growing on the vine in a sunny garden

How to Grow Marglobe Tomatoes From Seed

By Maxim Kaufman — Founder & CEO, Organo Republic

Updated July 2026

Marglobe is a classic 1920s heirloom slicing tomato that has earned its place in gardens for a century. This determinate plant sets smooth, deep-red, medium-large globes in reliable, heavy crops, then ripens most of them over a few weeks in about 75 days. It carries built-in resistance to verticillium and fusarium wilt, so it produces dependably with little fuss. Meaty and versatile, Marglobe is equally at home sliced fresh on a sandwich or put up by the jar for canning and sauce.

This is the quick guide to Marglobe. For the full step-by-step on starting seeds, sowing, feeding, and troubleshooting tomatoes, see our complete guide to growing tomatoes from seed.

Quick start

Start Marglobe seeds indoors 6 to 8 weeks before your last frost, keeping them warm at 70 to 80F until they sprout. Transplant after all danger of frost has passed and the soil is at least 60F, setting each plant deep so two-thirds of the stem is buried. Space plants 24 to 36 inches apart and give this determinate bush a short stake or cage for support. Expect smooth, deep-red globes about 75 days after transplant, with most of the crop ripening over a few weeks.

Best tip

Because Marglobe is determinate and sets its fruit in a concentrated flush, plant a second round two to three weeks later if you want a longer harvest for fresh eating and canning. In hot regions, keep watering deep and even as the fruit sizes up to prevent cracking during heat spikes.

At a glance

How to Grow Marglobe Tomatoes From Seed — growing specifications at a glance
Botanical name	Solanum lycopersicum
Plant type	Warm-season annual (determinate)
USDA zones	3 to 12 (grown as an annual)
Sun	Full sun (6 to 8+ hours)
Days to maturity	75 days from transplant
Height	3 to 4 feet (determinate)
Spacing	24 to 36 inches apart
Water	Deep and even; 1 to 2 inches a week

Uses

Marglobe is a dependable dual-purpose tomato. Its smooth, meaty, deep-red fruit slices beautifully for sandwiches and salads, while its heavy, uniform yields make it a longtime favorite for canning, sauce, and putting up tomatoes for winter.

Frequently asked questions

How long does Marglobe tomato take to grow?

Marglobe ripens in about 75 days from transplant. Start seeds indoors 6 to 8 weeks before your last frost, set plants out once the soil is warm, and you will pick smooth, deep-red globes through the heart of summer.

Is Marglobe determinate or indeterminate?

Marglobe is a determinate tomato, so it grows to a compact bush and sets most of its fruit over a few weeks. A short stake or cage is enough support, and you will not need to prune it the way you would a tall indeterminate vine.

What is Marglobe tomato good for?

Marglobe is a dual-purpose slicer and canner. Its smooth, deep-red, medium-large fruit is meaty enough for fresh slices and sandwiches, yet its heavy, uniform yields make it a favorite for canning, sauce, and putting up tomatoes for winter.

Is Marglobe tomato disease resistant?

Yes. Marglobe is a classic 1920s heirloom prized for its resistance to verticillium and fusarium wilt, which is why it produces such reliable, heavy crops. Rotate where you plant tomatoes each year and water at the base to keep foliage healthy.

Ready to grow your own Marglobe? Start with a multi-variety tomato pack, then follow our complete guide to growing tomatoes from seed for every step from sowing to harvest.

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Want more tomatoes? These value packs pair Marglobe with other varieties:

By Maxim Kaufman — Founder & CEO, Organo Republic

Maxim founded Organo Republic in 2017 and personally selects, tests, and grows the heirloom, non-GMO varieties the company offers. Under his leadership, Organo Republic was named Agri Business Review’s Top Non-GMO Seed Variety Solution 2026.