Greenhouse Tomato Fact: Greenhouse production gives growers greater control over the growing environment, helping support consistent plant performance and extended production opportunities.

Tri-Hishtil grafted tomato plants are designed to help greenhouse growers build on that advantage with improved vigor, disease tolerance, positive yield potential, and strong fruit size and quality.

Strong roots help support strong results, season after season.

Grow with greater confidence using Tri-Hishtil grafted tomato plants.

Designed to help growers address key production challenges, Tri-Hishtil's grafted tomatoes support improved plant vigor, tolerance to soil-borne diseases such as Fusarium Wilt and Bacterial Wilt, nematode tolerance, and strong fruit size and quality.

For open field, high tunnel, and greenhouse production, Tri-Hishtil grafted tomatoes provide a stronger foundation for consistent crop performance throughout the season.

Tri-Hishtil brings together three pioneers in the agricultural industry from around the world; TriEst Ag Group, Inc. in the USA; Israel-based Hishtil, and Italian-owned and operated SIS/Centro SEIA.

The right rootstock can make all the difference.

Tri-Hishtil works with growers to match rootstock options with the right variety, cultural practice, and field challenges. For grafted watermelon plants, rootstock options include interspecific hybrid squash and Carolina Strongback, with benefits that may include strong vigor, improved disease resistance, and rootstock-dependent nematode resistance.

Grafted plants help growers build a stronger foundation for the season, supporting reduced susceptibility to soil-borne diseases, improved plant vigor, positive yield potential, and better crop performance.

From backyard cookouts to holiday gatherings, watermelon is a summertime favorite across America. Supporting local growers means enjoying fresh, flavorful fruit while recognizing the dedication and hard work behind every harvest.

At TriEst Ag Group, we are proud to support growers with solutions that help produce strong, healthy crops throughout the season. Tri-Hishtil, TriEst’s grafted plant partner, provides grafted watermelon plants designed for vigor, quality, and dependable performance.

Wishing everyone a safe and happy Independence Day filled with great food, family, and fresh watermelon

Healthy fields start with strong plants.

Tri-Hishtil grafted watermelon plants are designed to help growers manage some of the toughest soil-borne disease challenges in watermelon production, including Fusarium Wilt. By combining vigorous rootstock with quality scions, grafted plants can provide stronger root systems and improved plant resilience throughout the growing season.

Protect your crop from the ground up with Tri-Hishtil grafted watermelon plants.

Peace of mind starts below the soil. Through our partnership with Tri-Hishtil, TriEst Ag Group helps connect growers with grafted watermelon plants featuring strong, disease-resistant root systems that help manage soil-borne disease pressure and support healthier, more reliable yields. A smart layer of crop protection from the very beginning.

Tri-Hishtil is an international partnership specializing in the greenhouse production of grafted vegetable plants, including watermelons, tomatoes, cantaloupes, peppers, and eggplants.

Stronger starts lead to stronger finishes. Tri-Hishtil grafted watermelons provide vigorous root systems with enhanced tolerance to soil-borne diseases such as Fusarium wilt, supporting improved plant health, fruit uniformity, and extended harvest windows. Built for consistent field performance from transplant to harvest.

Tri-Hishtil brings together three pioneers in the agricultural industry from around the world; TriEst Ag Group, Inc. in the USA; Israel-based Hishtil, and Italian-owned and operated SIS/Centro SEIA.

Stronger roots. Smarter investment. Tri-Hishtil grafted tomatoes deliver enhanced disease resistance, improved vigor, and the potential for higher yields at harvest in greenhouse production. The added value at planting translates to performance and profitability.

Tri-Hishtil is an international partnership specializing in the greenhouse production of grafted vegetable plants, including watermelons, tomatoes, cantaloupes, peppers, and eggplants.

Field-ready performance you can see. Tri-Hishtil grafted watermelons provide stronger root systems, enhanced disease resistance, and the potential for higher, more uniform yields at harvest. Grow with confidence from planting to pick.

Build your success on the strong foundation of grafted watermelons. Developed for enhanced root strength, improved disease resistance, and increased yield potential. Experience the proven benefits Tri-Hishtil grafted plants in your field.

Tri-Hishtil brings together three pioneers in the agricultural industry from around the world; TriEst Ag Group, Inc. in the USA; Israel-based Hishtil, and Italian-owned and operated SIS/Centro SEIA.

There are several options for rootstocks available for grafted watermelon plants. Choosing a rootstock is specific to the issues faced on an individual farm, whether that be the need for better yields, fusarium wilt management, or nematodes, etc. Tri-Hishtil has solutions to fit your growing needs.

With Tri-Hishtil's commitment to innovation and grower support, Tri-Hishtil is a trusted partner in building a more resilient and profitable crop. Learn more about the grafted advantage.

Tri-Hishtil is an international partnership specializing in the greenhouse production of grafted vegetable plants, including watermelons, tomatoes, cantaloupes, peppers, and eggplants.