More than two-thirds of growers described their financial position as "strong" or "very strong", while 89 per cent said they expect to see an increase in turnover over the next five years.
Just over two-thirds also plan to add new crops over the next five years, with the same number also expecting to increase their protected cropping area over that time.
Yet the weather is making sales less predictable, with half of respondents saying their business has seen unpredictable sales as a result of changing weather patterns - and one in 10 believing that it is adding to pest and disease pressure.
As a result, many businesses are looking to invest in irrigation, crop covers and new technologies to better adapt their operations and future-proof salad supply. Nearly nine in ten also said they already have staff within the company responsible for improving sustainability.
Florette managing director Neil Sanderson said: "It is heartening to hear that most growers are weathering the current economic difficulties and that investment plans are in place to ensure their businesses continue to thrive."