I have burpless climbing cucumbers in a large (13 gallon) plastic tub. The leaves look really healthy and the plants is starting to flower although they're not all that big yet -- each tenacle is maybe 12 inches long (but Spring has been very cool here).
1. Should they be flowering this soon (the plant still being fairly small)?
2. You can see in the picture there are two sets of stems, two each. I really don't think there's room on the trellis for all four stems to grow. Would you train two of the stems over the edge and eventually to the ground and the other two up the trellis, or clip away two of the stems altogether? I've used this tub for cucs in the past but think it's only had one (2 at he most) plants in it.
I've grown cukes in a container before. Think i had 3 plants in a container. They did ok. I used a homemade tomato cage. They grew up it than down. I'd let them all grow up the trellis.
Wish i had some now.
Is your container draining well? The water should be good for them but they don't like standing in water. Are your temps on he cool side? They are'nt crazy about cool weather either. The weather has been crazy here this year.