Family Owned Since 1979
Cultivating Gardeners



Product Description:

Superior rootstock for extra vigorous transplants.
Fortamino gives young starts an extra strong start with a robust root system and superior vegetative early growth. Especially well-suited for transplanting in high heat. Grafted scions produce heavier fruit and more blooms per truss than ungrafted plants. Proven performance in both open field and under cover cultivation. HR: F 0–2, FOR, LM A–E, PL, ToMV 0–2, V. IR: N, TSWV.
  • Key Features:




  • Key Features:

Customer Reviews

Based on 1 review
50 seeds planted, 5 "started"

These worthless seeds make maxifort's worthless seeds seem AWESOME. $45 for MAYBE 10 root stock starts, BUNK! I would NOT recommend these seeds, suppliers are selling old seed or just plain garbage. I am a 50 yr old with several 1000 sqft. greenhouses, I grow 100's on tomatoes EVERY year.

Sorry to hear the seed did not do well for you. We test every lot of seed we sell and we will not sell it if it doesn't pass our germination standards (which are higher than prescribed by the Federal Seed Act). At Territorial our products are backed by our full guarantee. We want you, our customers, to be 100% satisfied with the seed, plants and supplies that you purchase from us. If anything you buy from Territorial proves to be unsatisfactory, we will either replace the item or refund the purchase price, whichever you prefer. Contact our customer service (Monday-Friday 8AM-5PM Pacific Time) at either 800-626-0866 or

Grafting lets you grow your favorite tomato variety on a super vigorous, disease-resistant root system, boosting your plants productivity — even in challenging growing conditions!

1. Sow: Fill small pots or trays with moist seedling mix; sow rootstock and scion seeds 1/8 inch deep (remember to label them!) Keep the soil temperature at 75-80°F for best germination.

2. Size up: Rootstock stems must closely match the shape and diameter of scion stems. Adjust variables like heat and light for each group to influence growth rate.

3. Graft: Mist regularly as you graft to prevent drying. Work in sterile conditions. When both scion and rootstock seedlings have 2 true leaves and stems are 1.5-2.0 mm in diameter, use a razor blade to sever both seedlings 5-10 mm below the cotyledons at a 45-60 degree angle (gently, leaving the lower part of the rootstock seedling rooted in its container). Place a tube clip (whose diameter is slightly less than the stems diameter) half way down on the cut end of the lower piece of rootstock (the piece with the roots). Insert the top part of the scion into the tube so the cut surface aligns perfectly with that of the rootstock.

4. Heal: For 7 days, keep newly grafted plants in a healing chamber at 95% humidity (a plastic dome works for this) and 80-82°F. Keep them in darkness for 24-48 hours, then provide light (fluorescent light at 5400-7400 lux is ideal).

5. Wean: Over the last few days, gradually increase light while decreasing humidity and temperature until conditions match those outside the healing chamber.

For more information, including step-by-step instructions with pictures see The University of Arizona Vegetable Grafting Information Website

HR indicates high resistance.
IR indicates intermediate resistance.
AB | Early (Alternaria) Blight
B | Bacterial Wilt
F* | Fusarium Wilt
FOR | Fusarium Crown and Root Rot
L | Gray Leaf Spot
LB | Late Blight
LM | Leaf Mold
N | Roundworm | Nematode
PL | Corky Root Rot
PST | Bacterial Speck
RK | Root-Knot
TMV | Tobacco Mosaic Virus
ToMV* | Tomato Mosaic Virus
TSWV | Tomato Spotted Wilt Virus
TYLCV | Tomato Yellow Leaf Curl Virus
V | Verticillium Wilt
* Numbers indicate specific disease race.

Thanks for signing up for our weekly newsletter!