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Essex, United Kingdom Gb

My Penstemons have been huge this year, healthy and bushy. But I don't get many flowering spikes, 3 or 4 at a time very rarely. Can anyone give me some advice as to wny this is please.



Are you feeding them? If they are getting too much nitrogen they will make a lot of green and few flowers. Try next year using a high potash instead - something like tomato fertilizer for example.

18 Sep, 2017


or don't even feed them. if they 'think' they are doing badly they will produce more flowers as these make seed and then if the plant dies it has successfully bred. hope that makes sense.

18 Sep, 2017


Thank you for your your advice, I will definitely change the feed to tomato and maybe feed less often.

28 Sep, 2017


Much less often! Border plants don't usually need feeding unless the ground is impoverished. See what happens with a single high potash feed in Spring if you really want to feed.

28 Sep, 2017

How do I say thanks?

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