Can you please tell me how deep a pot needs to be to grow zucchini, brassicas, carrots, spinach etc.  Everything is too expensive to buy so I am going to try gardening in pots this summer. Thank you.

Hi Louise, you would need a container that is at least 20-30cm deep, and 25-30cm diameter. Anything smaller is going to dry out too quickly as it will not hold enough moisture in the potting mix, your plants will get stressed and probably bolt and go to seed. Many people successfully grow vegetables in 9 litre buckets, make sure any container you use has drainage holes in the bottom. Other containers that are suitable are flexi tubs (drill holes in the bottom), the blue council recycling bins are a good size for growing vegetables. A lot of garden centres including Mitre 10 have a pot recycling bin where you may find suitable pots, also check out second hand shops, there may be old boxes such as nail boxes which will be suitable that you can repurpose. Lianne.