Sowed end of february indoors, planted outside end of april but I put bubble wrap around sticks that surrounded the plants untill the end of may and started harvesting middle of june.
The first few courgettes didn't do well, this incomplete pollination thing where only the top half grows fat and the bottom half sticks out like a sore thumb, picked them off before they started rotting.
I'm starting to get a glut now, four waiting to be eaten and more on the plants, they will be hanging in a bag on the doors of neighbors soon.