Verbena annual plants all leaves but no flowers
I grew a tray of verbena and they were fine until i transplanted them into a large tub and used some Green Finger fertiliser. I have bushy plants but no flowers.
The problem may be the fertilizer. It is going to emphasize green growth initially, especially if you used liquid fertilizer. It is best to use a long-acting, balanced fertilizer for containers in spring and give the plant a dose of liquid or a smaller dose of long-acting when blooming tapers off. If you used liquid fertilizer, all you can do is flush it out by thoroughly soaking the soil and let it run out the bottom or wait for the effect to wear off. Verbena will grow in poor soil so it is adapted to low levels of fertility. Here is more info on Verbena care; https://www.gardeningknowhow.com/ornamental/flowers/verbena/growing-verbena-plants.htm