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I have two containers of Penstemons that flowered prolifically the first year i had them they are now 3 years old - not many flowers last year and none this year - wondering if i prob just need to repot or put them in the ground?

 

 X

I had the same plants from T&M Sara, out of 6 of them, 1 has flowers, didn't expect any flowers this year to be honest so they are a bonus.  Thought they would be too small to do much this year.

Penstemons are at their best in their first and second years then deteriorate.  So cuttings should be regularly taken

HOLEDIGGER
Penstemons are so much better in the ground, if watered and fed, pruned after flowering, just taking it down to where the flowers end, they should flower well next year, may need staking, brilliant plants.

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