I'm submitting this question for my sister who lives in Canada (British Columbia) "Can you please tell me what to look for,as the reason why all of my english cucumbers are super bitter this year?I have grown them for years in the same green house with no problems,same conditions..Thanks in advance Linda"
Island girl there are many theories ranging from fertilizing to watering to temperature. here is a link to a fact sheet from washington state that explains the theories http://cru.cahe.wsu.edu/CEPublications/eb1250/eb1250.html hope this is of some use