By Westbrom
County Durham,
United Kingdom 
i have sweet peas in polysyrene trays 4ins high do they need to be repotted to obtain deep root run before planting in open ground
24 Feb, 2011
Ah - you've answered my question to you on the other question you asked. If the trays are so shallow, it probably would be better to pot them up - but still pinch out the growing points.
24 Feb, 2011