These are Waltham Butternut developed in Waltham Massachusetts. I bought the seeds through Diggers. All's well so far but with a scorcher of a week coming up I'm afraid they might split like last year. I've put up some shade and I'm concentrating on even watering so hopefully they'll stay intact this year.
Put up a strong trellis and grow some next year. I concreted in 75mm x 50mm steel posts and strung them with steel wire around 2.5mm in diameter. They would work well strung between patio posts provided your patio faces north or east.
