It's not too hot or dry for them here yet Dobby. Mine are doing just great. Just about up to eating size. As others say, just delicious stir fried with anything you like.
Last year I founf they weren't so good once it got to mid summer, but were then good again later in the year. Enjoy.

In answer to your last question about plants you don't know - I've planted some red striped amaranth (got it from a Grape, thank you) Not sure what it will be like but I'm giving it a go.

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From each according to his ability, to each according to his needs.