Tomato Grow Guide
- Cordon type
- Time to germination: 7-21 days
- When to sow inside: February - March
- When to sow outside: March - April
- Spacing: 100cm +
- Soil preference: Fertile, well-drained
- Light preference: Full sun
- When to harvest: July - October
How to Tomatoes from seed
Tomatoes belong to the same family as aubergines and peppers and should be grown much the same way. They require heat, light and well-drained, evenly moist soil and should be grown under glass. Sow your Golden Crown Tomato Seeds shallowly and aim to keep warm - 18 degrees is ideal. After germination, place on a sunny windowsill, or as we recommend, under LED lights, to grow on and develop in 8cm thin-wall pots before planting out in late spring, pot and all.
We start our tomato seeds under lights to ensure a compact, healthy seedling. If your plant does become leggy, it's fine to remove most of the leaves and plant, so just the crown is above the soil surface. The bonus here is an early, supercharged root system, as roots will grow from the buried stem. We plant along the north wall of the greenhouse to avoid shading out smaller specimens.
Tomatoes are an easy and vigorous plant to grow. As with all tomatoes, regular measured watering will result in consistent soil moisture and happy thriving plants.
A cordon or indeterminate variety, which means it will continue to grow and fruit throughout the growing season up until the frosts. Due to their tall vining nature, we recommend training up garden twine. It’s a commercial technique, far superior in time/labour, effort, and effectiveness to staking and tying in. Simply secure a length of twine above and let it hang down to your seedling. Wind the main stem around the twine as it grows. If you must stake, drive the stakes in at an angle, well clear of the root zone.
What to feed your Tomato plants
Tomato plants enjoy free-draining soil loaded with plenty of organic matter. As they are heavy feeders, add a few handfuls of fish, blood and bone meal with some volcanic rock dust and some kelp powder to give them a rich, balanced and diverse diet for strong organic growth and cropping over the season. This diet will also help the plants to form strong, well-developed immunity.
By preparing the hole/soil with the above organics before planting and applying a side dressing of phosphorus-rich bone meal or wood ash just before fruiting, you feed the whole soil ecosystem, which provides your tomato plants with a much broader diet. Off the shelf bought chemical fertilisers are limited in their scope and kill life in the soil web, trapping the gardener into spending more time and money repeatedly fertilising. If you are worried or breaking the habit is hard, apply a seaweed or comfrey liquid fertiliser instead. Throw some seaweed or comfrey leaves in a water butt or large bucket and let steep.
Keeping pests away
These tomatoes are open-pollinated types, so we encourage you to save your own seeds. By doing so from your best plants, your toms acclimatise to your particular microclimates and disease vectors year on year. Generally, fairly pest and disease resistant, tomatoes should be rotated every couple of years and given plenty of space as they don’t like humidity. It's for this reason that we plant them near to the open greenhouse door, leaving the moisture-loving cues to thrive in the humid back corners.
Tomatoes are susceptible to fungal issues and blight. Plant spaciously, remove the yellowing older leaves and remove side shoots regularly to increase airflow around your plants. The side shoots are the new growth at 45 degrees between the main stem and fan leaf; their removal will also increase yields.