Maxifort F1 Tomato Rootstock — The #1 Rootstock in North America
by Paramount Seeds on Jul 30 2026
Why Growers Choose Maxifort
Maxifort F1 is one of the most vigorous tomato rootstocks available — and the most popular rootstock in North America. Bred for maximum yield potential and crop longevity, Maxifort is the go-to choice for commercial greenhouse growers running long-season hydroponic programs.
Key Benefits
- High Vigor: Drives exceptional vegetative strength, especially valuable for weak or generative scion varieties.
- Extended harvest window: Significantly increases the length of time a crop can be harvested, maximizing ROI per planting cycle.
- Summer performance: Greatly improves production during high-stress summer conditions.
- Versatile substrate compatibility: Performs well in both soil and rockwool systems.
- Year-round hydroponic use: Recommended for continuous cropping programs to improve overall vigor and maximize yield.
Disease Resistance Package
Maxifort carries a broad resistance profile: TmC5VF2FrNK — providing protection against Tobacco mosaic virus, Corky root rot, Fusarium crown and root rot (races 1 & 2), Fusarium wilt (races 1 & 2), Verticillium wilt, and root-knot nematodes.
Available Formats
Maxifort is available in two seed formats to match your seeding workflow:
- Non-pelleted (Raw Seed): Untreated and primed — ideal for precision seeding equipment.
- Pelleted Seed: Untreated, primed, and pelleted for easier handling and singulation. Note: pelleting materials are not suitable for organic production.
Seed may not be suitable for Organic Production — please verify with your OG Certifier before use.
Shop Maxifort
Ready to maximize your rootstock performance? Shop Maxifort Non-pelleted or Shop Maxifort Pelleted Seed.