Green Zebra Giant Tomato

Start seeds indoors 6 to 8 weeks before your last spring frost, planting them about 1/4 inch deep in warm seed-starting mix. Keep soil temperatures between 70 and 80 degrees Fahrenheit for optimal germination, and provide bright light as soon as seedlings emerge to prevent stretching.

Harden off seedlings over 7 to 10 days by gradually exposing them to outdoor conditions, then transplant into the garden after your last frost date when soil has warmed to at least 60 degrees Fahrenheit. Space plants 24 inches apart in rows that are 36 inches apart, planting slightly deeper than they grew in their containers to encourage a stronger root system.

Pick Green Zebra Giant tomatoes when they reach full size (8 to 9 ounces) and the flesh has shifted to a pale yellow-green with bold dark green stripes, typically around 80 to 89 days from transplant. The fruit should yield slightly to gentle pressure but still feel firm. Ripe tomatoes will slip easily from the vine when gently twisted or lifted; if they resist, wait another day or two. Harvest in the morning for the sweetest flavor, and continue picking regularly to encourage the plant to keep producing through the season.

As a determinate variety, Green Zebra Giant naturally stops growth at a genetically predetermined height and produces its fruit in concentrated clusters, requiring minimal pruning compared to indeterminate types. You can remove lower leaves once fruit sets to improve air circulation and reduce disease pressure, but avoid aggressive pruning that would expose developing fruit to sunscald.