We prioritise taking local and seasonal produce from the UK and have good long standing relationships with a number of local suppliers. We do occasionally bulk up our boxes with in-season produce from other countries too. This happens mostly in the Winter and early Spring when the 'staples' like root veg and greens are primarily available here, which hinders variety.
We have a zero air-freight policy so will never fly in any produce and always try to minimise the carbon footprint of transporting our produce. We only ever take produce which is 'odd' or surplus and was at risk of going to waste, because when food is wasted (wherever in the world that might be), all the energy, water and time that went into growing it is wasted too.