Thanks for the comments
I followed some very helpful instructions that Cypher made on her thread about Tinwë. I'll link the post for you.
Tinwë the brave!. I'm terrible at growing things but it was nice and easy and they really enjoyed them. Kept Boris quiet for a good 15 minutes which is unusual for him lol.
The seeds are from ebay
SW Hamster Seed Mix- Grow your own food YUM YUM******** | eBay though not sure they ship to Spain
I just got the pots from Amazon
https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1