Thompson & Morgan Tomato Sungold F1 Hybrid - 8 Seeds

Introducing Tomato 'Sungold', an exceptional cordon cherry tomato suitable for both greenhouse and...

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This guide is for home gardeners seeking an exceptionally sweet and high-yielding cherry tomato. The 'Sungold' F1 Hybrid offers unparalleled sweetness and prolific harvests, perfect for salads or snacking, though its vigorous growth may require consistent support. Key features include its high sugar content, resistance to common diseases, and extended cropping period.

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FAQs

What is the best way to support a 'Sungold' tomato plant?

As a cordon variety, 'Sungold' can grow up to 2 meters (80 inches) tall. It requires strong support such as tall canes, a sturdy trellis, or netting. Tie the main stem loosely to the support as it grows.

Can I grow 'Sungold' tomatoes in pots?

Yes, 'Sungold' can be grown in large pots or containers. Ensure the pot is at least 25cm (10 inches) in diameter and provides good drainage. Adequate support must still be provided.

How often should I water 'Sungold' tomatoes?

Water regularly, especially during warm weather and when the plant is fruiting. Aim to keep the soil consistently moist but not waterlogged. Watering in the morning is generally best.

When is the best time to sow 'Sungold' seeds?

For greenhouse growing, sow from February to April. For outdoor growing, sow from March to April. Ensure consistent warmth for germination.

Why are my 'Sungold' fruits splitting?

Fruit splitting is usually caused by inconsistent watering. Rapid uptake of water after a dry spell can cause the fruit skin to burst. Ensure the soil remains consistently moist.

What does 'F1 Hybrid' mean?

'F1 Hybrid' refers to the first generation offspring of a cross between two distinct parent lines. F1 hybrids often exhibit improved vigour, uniformity, and yield, as well as desirable traits like disease resistance and enhanced flavour.

Can children eat 'Sungold' tomatoes directly from the plant?

Yes, 'Sungold' tomatoes are exceptionally sweet and juicy, making them perfect for children to enjoy straight from the plant, especially when warm from the sun.

Troubleshooting

Seeds not germinating

Ensure consistent temperature of 15-20°C (59-68°F) and that the compost remains consistently moist but not waterlogged.

Seedlings are leggy and weak

Provide more light and ensure the temperature is not too high. Avoid overcrowding.

Plants are wilting despite watering

Check for root rot caused by overwatering or ensure the soil drains well. For outdoor plants, check for physical damage to the stem.

Fruit splitting

Inconsistent watering is the primary cause. Ensure a steady supply of moisture to the roots, especially during dry periods or after heavy rain.

Poor fruit set

Ensure adequate pollination, especially in greenhouses. Gently shake the plants or use a small brush to transfer pollen. Ensure the plant is receiving enough sunlight and nutrients.

Pros and Cons

Pros

  • Outstanding, award-winning flavour with high sugar content.
  • Abundant and continuous harvest throughout the season.
  • Good resistance to common tomato diseases.
  • Suitable for both experienced and novice gardeners due to easy care.
  • Compact fruit size is ideal for snacking and salads.

Cons

  • Requires significant support due to its cordon growth habit and height.
  • May be susceptible to blight in very wet outdoor conditions if not managed.
  • Germination can be slow if temperatures are not consistently maintained.
  • Requires consistent watering to prevent fruit splitting.

Setup, Compatibility & Care

Sowing Seeds:

  1. For greenhouse cultivation, sow seeds indoors from February to April. For outdoor cultivation, sow from March to April.
  2. Use a good, free-draining seed compost. Sow seeds on the surface and cover with a fine layer of compost or vermiculite.
  3. Water gently and place seed trays in a propagator or warm location.
  4. Maintain a constant temperature of 15-20°C (59-68°F) for germination, which typically takes 7-14 days.

Transplanting Seedlings:

  1. Once seedlings have developed two true leaves, carefully transplant them into individual 7.5cm (3 inch) pots filled with potting compost.
  2. Grow on at a minimum temperature of 15°C (59°F).
  3. When greenhouse plants are ready (late May or when first flowers appear), transplant them into their final positions. Allow 3 plants per grow bag, one per 25cm (10 inch) pot, or plant directly into greenhouse soil.
  4. For outdoor plants, harden them off before planting out after the risk of frost has passed.

Growing Conditions:

  • Position: Full sun is essential for best fruit development.
  • Support: As a cordon variety, plants will reach up to 200cm (80in) and require strong staking or support from canes, netting, or trellises.
  • Watering: Water regularly and consistently, especially during dry spells, to prevent fruit splitting and blossom end rot.
  • Feeding: Once established and fruiting, feed with a high-potash fertilizer every 10-14 days.

Compatibility:

'Sungold' is compatible with most standard tomato growing practices. It can be grown alongside other cordon tomato varieties. Ensure adequate spacing (50cm/20in between plants) to allow for airflow and light penetration.

Care:

Regularly remove side shoots that grow from the leaf axils to maintain the plant's energy towards fruit production. Monitor for pests and diseases, although 'Sungold' has good resistance. Keep the base of the plant clear of weeds.