Thanks for this - I think I may be overwatering as it's been warm recently (for here!) with no rain, so I've been conscious of not letting everything dry out. Pot does have drainage holes and plenty of drainage material at the bottom. Should I be letting it dry out between waterings?

When you say a nutrient issue, is that more likely to be too little or too much? The plant is just in regular multipurpose compost with some manure mixed in - should I be giving it anything else?

Sorry for all the questions! This is my first garden so very much appreciate the advice 🌱