they lok pretty similar to me. The lolliop is not very much shorter than the standard. Both can grow straight upwards. I think it would enjoy growing in your gravel if there is full sun.
I can't say I noticed a difference in my own beds. But I'm not the best person to comment as I have the two mixed together and both and self seeded over time.
I would say that my own reg verbena bon tends to spread out with age; the seem to get bent by their own weight and rain and wind and take up all sorts of odd shapes and sprawl. I tend to clip off the awkward bit.
I noticed this corkscrew effect yesterday - verbena bon is a rather mad plant and feels a bit Jurrasic to me - like a determined lizard.
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A good gardener's eye sees more to be improved. Robin Lane Fox
Anyhoo...hopefully it will flower soon and attract lots of butterflies.
A good gardener's eye sees more to be improved. Robin Lane Fox
Regular Vb
And Lollipop