On Thompson & Morgan's website, find 'The ultimate guide to growing tomatoes'. Within this guide, locate the section that provides advice on how to train tomato plants. Identify and extract the key piece of advice related to pruning side shoots from indeterminate or semi-determinate varieties.
Navigate to thompson-morgan.com. Search or navigate to 'The ultimate guide to growing tomatoes' article. Scroll through the article to find the section titled 'How do you train tomato plants?'. Read the content within this section to identify advice on pruning side shoots. Extract the specific advice found regarding pinching out side shoots.
Successfully navigates to 'The ultimate guide to growing tomatoes' on thompson-morgan.com. Locates the 'How do you train tomato plants?' section within the article. Extracts the advice: 'Pinching out the side shoots as they develop concentrates the plant's energy into producing fruit.' or 'Pinch out any side shoots from the leaf junctures as they appear.' Confirms this advice applies to indeterminate and semi-determinate varieties.