Kings Seeds Tomato Harbinger
Description
Harbinger tomato is an early Old English variety which produces a heavy yield of good flavoured medium size fruits. This variety has the added benefit that it can be grown under unheated protection as it tolerates the cool weather well.
When to Sow Harbinger Tomato Seeds
January to April
Where to Sow
Sow seeds underglass 0.5cm(1/4 in) deep in pots or trays of good seed sowing compost and lightly cover with a sprinkling of vermiculite or compost. Place containers in a propagator at a temperature of 18–21°C .
What to do next
Once large enough to handle, prick out tomato seedlings into 9cm (3 1/2in) pots. Transplant to the greenhouse border soil, into individual large pots, or 3 plants per growbag when 20cm (8in) high. They can also be planted outdoors once all risk of frost has passed. Plants require sideshooting and support for the best yields. Water and feed plants regularly with a high potash feed once the first truss has set.
Maturity
July to October.
Handy Tip
Water regularly to avoid splitting fruits and blossom end rot.
Nutritional Values
Very high in vitamin C and lycopene.
Type
Indeterminate - single stem, remove side shoots.
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