Determinate. The Heinz Company came out with several strains of this tomato over the years and we think we have the best of them. In late August there are dozens of fruit, all around 3 inches across, all crack free, all bright red. A great tomato for a variety of home uses - one thing to keep in mind is you will get lots and lots of perfect fruit, all at pretty much the same time. The acid content is perfect for canning, the flavor is fine for salads, resistance to fusarium and verticillium wilts is built in. Heinz is sort of a canning heirloom and we like it a lot. 25 seeds.
Indoors- 6 weeks before last frost, 1/4” deep with soil temperatures 75 degrees. Liquid fertilize seedlings every 7-10 days. Transplant out 24-36” apart after last frost when soil is 55-60 degrees and night temperatures are over 45 degrees.
Harvest- When fruit is red (or color of the variety planted) and firm.
Tips- Plant in fertile soil, amended with compost, mulch and provide even moisture. Plant deeper than they were growing in the containers as it makes a stronger roots system. Apply a light compost tea every few weeks. Do not apply excessive nitrogen, which can promote excessive foliage and poor fruit set.