Seed Swaps

Tomato 'Harbinger'

Solanum lycopersicum

  • 6 plantings
  • 1 available for swap
  • 1 wanted
  • 9 stashed

Harbinger is a popular variety of Tomato, which belongs to the Solanum genus (Solanum lycopersicum 'Harbinger'). 'Harbinger' is considered a heirloom cultivar.

Produces medium size, thin skinned fruit with good flavour. Early producer, which will keep producing until the first frost. Fruit ripens well off the plant, making it an excellent choice for cooler and shorter growing seasons. Regular leaf.

Harbinger grows as an Annual and is a Fruit. Being an Annual, it tends to grow best over the course of a single year. Harbinger is known for growing to a height of approximately 1.20 metres (3.90 feet).

United Kingdom is believed to be where Harbinger originates from.

Harbinger Tomato is normally fairly low maintenance and is normally quite easy to grow, as long as a level of basic care is provided throughout the year. Being aware of the basic soil, sun and water preferences will result in a happier and healthier plant.

This variety plant info is provided by the myfolia gardener's wiki. All details about Harbinger have been kindly provided by our members.

How to grow Harbinger

  • Full Sun

  • Medium

Plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Harbinger is thought of as tender, so remember to wait until your soil is warm and the night time temperature is well above freezing before moving outside. Use USDA Hardiness Zone 3 - 14 as your guideline for the appropriate climate for this plant. Ensure your soil is loamy and has a ph of between 5.0 and 6.0 as Tomato is a moderately acidic soil to weakly acidic soil loving plant.

Growing Harbinger from seed

Start seeds indoors six weeks before last frost date.

Try to aim for a seed spacing of at least 2.60 feet (80.0 cm) and sow at a depth of around 0.78 inches (2.0 cm). Soil temperature should be kept higher than 12°C / 54°F to ensure good germination.

By our calculations, you should look at sowing Harbinger about 42 days before your last frost date.

Transplanting Harbinger

Plant to the first set of true leaves to promote strong root growth.

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Harbinger is a tender plant.

Harvesting Harbinger

This variety tends to be ready for harvesting by early summer.

Harbinger folklore & trivia

A traditional English commercial heirloom variety introduced in circa 1910.

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