Home & Garden Spot: Selecting which tomato plants to grow | Lifestyles

With all the tomato varieties available, deciding which ones to plant can be fun yet confusing. Alabama Extension has conducted many tomato programs over the years and included a tomato taste test as part of the program. Choosing which variety can be overwhelming, but a few new cultivars may be worth a try.

Tomato growth habit

Tomatoes are categorized into two groups depending on their growth habit: determinate and indeterminate. A determinate plant will grow until a certain point, and the terminal buds will produce flowers instead of more vegetative growth. Determinates will produce fruit and then stop producing after a few weeks. They can produce some fruit later in the season, but not as much as the indeterminate plants. For this reason, many determinate plant growers will plant tomatoes later in the season if they are looking for a later crop. The indeterminate plants may be more of a challenge to stake but will produce fruit all season if disease issues are managed properly.

Tomato acidity

Many people will refer to tomatoes as being high acid or low acid, but most tomato varieties have relatively the same acidity. It is actually the sugar content that varies with different tomatoes. Therefore, a “high acid” tasting tomato would actually be a low sugar content tomato. A “low acid” tasting tomato would have a higher amount of sugar. As a general rule, the high sugar content tomatoes are typically not red in color. Rather they are orange, yellow, purple, etc.

Fruiting determined by temperatures

Hot summer temperatures can impact fruit set for tomato plants. Not only are high daytime temperatures a problem, but high nighttime temperatures can cause a reduction in fruit set.

Thankfully, heat set tomatoes will set fruit at higher temperatures. Heat set tomato variations include Bella Rosa, Florida 91, Phoenix, Redline, Solar Fire, and Sun Leaper.


When deciding which tomato to grow, disease resistance is an important factor. No tomato is resistant to all diseases. You will have to choose resistant varieties based on the most problematic diseases in your garden. It is pretty common to find tomatoes resistant to Fusarium Wilt (race 1, 2 and 3), Verticillium Wilt, Root Knot Nematodes, and several resistant to Tomato Spotted Wilt Virus. However, it is also possible to find a few tomato cultivars resistant to Early Blight, Late Blight, Gray Leaf Spot, Tomato Mosaic Virus, Tobacco Mosaic Virus, Bacterial Speck, Bacterial Wilt, and a few other diseases. Again, you will not find a tomato resistant to all of these diseases. 

However, you can find tomatoes resistant to one or more of these diseases.

Consider the use 

of the tomato

There are several different uses of the tomato to consider before planting. If you are planning on canning tomatoes, the paste type (Roma type) tomatoes are an option.

Popular paste tomatoes include:

• Granadero

• Mariana

• Plum Crimson

• Plum Regal

• Pony Express

Slicing tomatoes, grape, and cherry type tomatoes are available and are favorites among producers. Recommended slicing tomatoes with good disease resistance include:

• Amelia

• Bella Rosa

• Crista

• Mountain Gem

• Mountain Magic

• Mountain Merit

• Red Bount

• Red Defender

However, there are thousands of other slicing tomatoes available.

Cherry types are:

• Matt’s Wild Cherry

• Mountain Belle

• Sun Gold

• Sun Sugar

• Super Sweet 100

Lastly, recommended grape types with good disease resistance include:

• BHN 410

• Mountain Honey

Planting location

Many farmers grow tomatoes in high tunnels and greenhouses. There are recommended tomato cultivars for high tunnel production and tomatoes for greenhouse production as well. If you want to try some of the tomato cultivars and are struggling to find them at garden centers, planting seeds may be the best option.

It is not too late to plant tomato seeds for the 2021 season.

More information

For more help or to ask questions, visit www.aces.edu or call 256-232-5510.


— Posted by Chip East.

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