Planting into the right substrate will save a lot of problems later on. Chillies love a free draining compost, or a half-half mix of compost and coir, to soak up extra moisture. Tomatoes are heavy feeders and a richer mix is perfect for them. Herbs like it on the drier side, so use a free draining mix.

Did you know plants can take in nutrients through their leaves as well as their roots? Give them a quick snack by using a clean spray bottle with a half-strength general plant food. Remember to do this in the evening to avoid burning the leaves in the sunlight. This foliar feed is an extra treat, so keep up with your regular watering routine.

Your plants need plenty of ventilation to thrive. While it might be tempting to cram as many plants as possible into your greenhouse, overcrowding can lead to mould and mildew. Make sure there's enough space for air to circulate. If things get too cozy, consider moving the hardier plants outside during warm days (and nights, if it's mild enough).

Strong plants need good nutrition, especially tomatoes, which are known for their big appetites. Use a general-purpose plant feed like liquid seaweed before flowering, then switch to a tomato feed (at half strength for chillies) once they start blooming. Keep an eye on the leaves for signs of nutrient deficiencies—resources like World of Chillies can help you diagnose and treat any issues.

Indeterminate tomatoes need large pots to reach their full potential—think 22-litre pots. Chillies are more adaptable, thriving in pots from 7 to 20 litres, depending on your space. Herbs like basil are content in 7-litre pots.

Pests can wreak havoc in your greenhouse if left unchecked. Regularly inspect your plants for signs of trouble. Early diagnosis is key to tackling issues before they spread. World of Chillies offers helpful diagnostic tools, and there's plenty of info online. Sometimes, drastic measures like removing a plant are necessary to protect the rest.

Indeterminate tomatoes need regular pruning to grow tall and strong. Weekly, pinch out the side shoots and remove lower leaves to boost ventilation. This little bit of maintenance will keep your tomatoes in top shape, concentrating their effort on growing tomatoes instead of a forest of foliage.

Once your herbs are established, start pinching out the growing tips to encourage bushy growth and prevent flowering. The tips are the tastiest part, so harvest away! Basil, in particular, loves to flower, but pinching out the tips keeps it focused on producing lovely, flavourful leaves.

Keep compost damp but never waterlogged. Overwatering is a common mistake with chillies, leading to nitrogen deficiency. Tomatoes need consistent watering to avoid issues like blossom end rot. Herbs prefer it on the drier side for more flavourful leaves.

Some chilli varieties start producing flowers and fruit early in the season. While a bumper crop sounds great, it's best to remove early chillies to allow the plant to grow stronger first. Use your judgment to pick off any chillies the plant isn't ready to support.

There you have it—some fun and informal tips to help your garden flourish during this peak growing season. Happy gardening!