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Verbena Bonariensis and cutting back


 
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oceanclub
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Rank attained: Hazel Tree


Joined: 20 Aug 2011
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PostPosted: Sun Apr 14, 2019 10:27 am    Post subject: Verbena Bonariensis and cutting back Reply with quote

We have some Verbena Bonariensis, which I was told should produce new shoots from the base and I can then cut back the old stems.

However, what appears to be happening is that new shoots are coming _from_ the old stems, a foot or two above the ground:



Should I still shear the plant back down to the ground? I'm thinking that if I cut back to above the new shoots, it will look very raggedy.

P.
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Greengage
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Joined: 09 Nov 2011
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PostPosted: Tue Apr 30, 2019 6:52 am    Post subject: Reply with quote

Unfortunately its not full hardy everywhere and can be a bit fickle, All the books recommend cutting it back hard to ground level and it regrows but its not always the case, I have had them regrow from half way up the stem too and it can break more so than if it shoots lower down, it is easy to grow from seed and probably better to re grow every few years. removing the flowers will cause it to bush out a bit, you can take cuttings from the side shoots only as the main stems are hollow, but they need minding. Nice plant in the border I once saw a border of Calamagrostis Karl forrester and verbena only, looked brilliant.
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