Tomato Grosse Lisse Vegetable Seeds

Tomato Grosse Lisse Vegetable Seeds

A traditional garden favourite producing large, smooth, red tomatoes with a full tomato flavour. Grosse Lisse is a versatile slicing variety for sandwiches, salads and everyday cooking.

This vigorous, indeterminate tomato continues growing and bearing fruit while conditions remain favourable. Plants require sturdy stakes, cages or a trellis to support their growth and developing crop.

Grosse Lisse grows best in full sun with fertile, well-drained soil and consistent moisture. Allow a generous growing season, with the first ripe fruit commonly appearing around 12 weeks after transplanting.

Tomato Grosse Lisse Seed Details

Why Grow Grosse Lisse Tomatoes?

What Do Grosse Lisse Tomatoes Taste Like?

Grosse Lisse tomatoes have a full, traditional tomato flavour. Allow fruit to ripen well for the best eating quality, with flavour influenced by sunlight, watering and harvest stage.

Slice them into sandwiches, burgers and salads, or chop them for pasta dishes and sauces. Their generous size makes them useful wherever a larger fresh tomato is preferred.

How to Grow Grosse Lisse Tomatoes

Start seeds in trays or small pots before transplanting established seedlings into their final growing position. Pre-soaking is not normally required.

1. Prepare the seedling pots.
   Fill clean trays or pots with a fine, free-draining seed-raising mix. Moisten the mix before sowing.
2. Sow the seeds.
   Sow approximately 5 mm deep, cover lightly and water gently to settle the mix.
3. Keep warm during germination.
   Maintain even moisture without saturating the growing mix. Germination commonly takes approximately 5–10 days at soil temperatures of 21–27°C, although cooler conditions can delay emergence.
4. Provide light and growing space.
   Move emerging seedlings into bright light. Pot them on when true leaves have developed and the roots need more room.
5. Harden off and transplant.
   Gradually introduce seedlings to outdoor conditions. Plant into a sunny position once frost danger has passed and conditions have warmed.
6. Install sturdy support.
   Use stakes, a strong tomato cage or a trellis. Secure growing stems with soft ties, leaving room for them to thicken.
7. Water, feed and harvest.
   Keep soil moisture consistent and apply a suitable tomato fertiliser according to its directions. Pick fruit progressively as it develops its mature red colour.

When to Sow Grosse Lisse Tomatoes in Australia

Choose sowing times to suit your local climate and allow enough warm growing weather for the crop to mature.

• Cool and temperate regions: Start seeds under protection in late winter or spring, then transplant outdoors after frost danger has passed.
• Subtropical regions: Choose mild, frost-free growing periods and avoid prolonged extreme heat where possible.
• Tropical regions: The cooler, drier season is generally a useful growing window. Adjust planting to local rainfall and temperature patterns.

Grosse Lisse Tomato Plant Spacing

Allow approximately 50–60 cm between supported plants as a starting point. Increase spacing where plants will carry several stems or develop a broad canopy.

Leave sufficient space between rows for tying, watering and harvesting. Avoid tightly crowded foliage so air can move through the developing crop.

Best Soil for Grosse Lisse Tomatoes

Grosse Lisse grows best in fertile, well-drained soil that retains moisture without remaining saturated. Incorporate mature compost before planting and apply mulch around established plants, keeping it clear of the stems.

For container growing, use a large pot with drainage holes and a quality vegetable potting mix. Check moisture frequently and feed regularly according to the fertiliser directions.

Tips for Growing Grosse Lisse Tomatoes

• Choose a sunny site with good airflow.
• Provide strong support for the tall plants and developing fruit.
• Check ties regularly as stems grow and thicken.
• Water at soil level where practical.
• Maintain consistent moisture during flowering and fruit development.
• Avoid excessive nitrogen fertiliser, which can encourage leafy growth at the expense of fruit.
• Monitor for pests and remove diseased foliage.
• Harvest regularly and remove damaged fruit.

Frequently Asked Questions

Is Grosse Lisse determinate or indeterminate?

Grosse Lisse is indeterminate. Plants continue growing and producing flowers while conditions remain favourable.

Does Grosse Lisse need staking?

Yes. Use sturdy stakes, cages or a trellis to support the vigorous plants and their developing crop.

How long does Grosse Lisse take to harvest?

The first ripe fruit commonly appear around 12 weeks after transplanting. Allow additional time for raising seedlings, and expect harvest timing to vary with weather and growing conditions.

Can Grosse Lisse tomatoes grow in pots?

Yes. Choose a large container with good drainage, quality potting mix and strong support. Container-grown plants need frequent moisture checks and regular feeding.

What are Grosse Lisse tomatoes best used for?

The large fruit are useful for slicing into sandwiches, burgers and salads. They can also be chopped for cooked tomato dishes and sauces.

Why are my tomatoes splitting?

Splitting can occur when fruit takes up water rapidly after dry conditions or heavy rain. Consistent watering and timely harvesting can help reduce losses.

When should I pick Grosse Lisse tomatoes?

Pick when fruit develops its mature red colour and yields slightly to gentle pressure. Check plants regularly as tomatoes on the same plant may ripen at different times.