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Short Purple Penstemon?

NollieNollie Posts: 7,529
I have never really considered penstemons before, but I am looking to replace some salvia caradonna that look a bit underwhelming in a large, sunny, colourful border and wondered if penstemons would pack a bit more punch from a distance? 

Are there any purple ones that are/remain that colour rather than verging on or fading to pink? Could they be kept compact - ideally no taller that 50cm?

I like the colour of Russian River but its a bit too tall. Hayloft have a compact one called Purple Perfection which might fit the bill, but its rather more expensive than all the rest...might be worth it if its a good purple?

Anything would need to be perennial, drought tolerant when established, ok in full sun and hardy to -10cm to cope with my winters.

Any suggestions?
Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
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  • raisingirlraisingirl Posts: 7,093
    I've got the exact right one - hooray! I have no idea what it's called - boo! I can try to strike some cuttings - hooray! I don't know if I'd be allowed to post them to you - boo!

    I'll see if I can figure out what it's called. It's a blue mauve, still green now. It's growing in just about the sunniest spot in my garden, on a steep bank and doesn't seem to ever lose its leaves. It's not the most floriferous (made up word - you know what I mean) penstemon ever, but it is the right height, habit and colour. Bear with me - I'm off to see my friend Google......
    Gardening on the edge of Exmoor, in Devon

    “It's still magic even if you know how it's done.” 
  • NollieNollie Posts: 7,529
    That sounds promising RG, thanks, I eagerly await the results of your detective work! I also looked at P. mensarum, which looked quite blue in the photos, but that might mean its actually purple rather than pinky...
    Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
  • Pete.8Pete.8 Posts: 11,340
    edited January 2019
    There's P.Raven which is very dark and about 60cm.
    We've had a couple of sharp frosts (-4c last night) but they're still covered in fresh green foliage atm and one still had a couple of flowers until a few days ago.
    They flower from early summer until the winter finally gets them. I cut them back around late Feb and they're away again in no time.
    I also have Penstemon serrulatus which spreads and gets no more than about 50cm - with pale blue flowers and unusual leaves for a penstemon

    I was unimpressed with caradonna too and replaced it with a S.Mainacht - truly fabulous and a million miles from the dull caradonna. It really stands out and flowers for months if you cut the dead spikes

    Billericay - Essex

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • NollieNollie Posts: 7,529
    Thats exactly it, @Pete.8, caradonna is just dull. I did wonder if another salvia might ‘pop’ more against the oranges and reds. I nearly ordered Mainacht at the time and wish I had now!

    My supplier says Raven gets to 80cm, so I thought it would be too tall, given most things here seem to grow taller than stated anyway...
    Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
  • JennyJJennyJ Posts: 10,576
    edited January 2019

    Raven gets to about 2ft for me (on dry sandy soil and it doesn't get pampered).  That'd be about 60cm in new money.  But to my eye it's more of a deep plummy burgundy colour rather than purple.  Blackbird is similar but not quite as dark.

    Salvia "Nachtvlinder" is what I'd call a true dark purple but it looks dull on its own - it needs contrast.  Also it tends to be sprawly and spreads by suckers. 

    I have high hopes for Veronica "Royal Candles" for this year - it's supposed to be short and a brighter purple.

    Doncaster, South Yorkshire. Soil type: sandy, well-drained
  • Pete.8Pete.8 Posts: 11,340
    Hi Nollie - I've got about 12 Raven in the garden. This one in a pot is the tallest at 62cm
    (photo taken just now) It only finished flowering a few days ago


    Salvia Mainacht - around July last year



    Billericay - Essex

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • Lizzie27Lizzie27 Posts: 12,494
    Pete8, that salvia looks stunning - as does your garden.
    North East Somerset - Clay soil over limestone
  • NollieNollie Posts: 7,529
    It does indeed look lovely, Pete, the Mainacht looks much brighter and more fullsome than Caradonna. I still think Raven will get too tall here, for the intended location, stuff always does, so I reckon I will hold out for a shorter purple one. You have tempted me to try a few Mainacht as well and see how they go. I’m going to shift the Caradonna to an east border where they can blend with soft pinks and whites and don’t need to make a statement.
    Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
  • Pete.8Pete.8 Posts: 11,340
    Thanks Lizzie :)

    Yes Nollie it almost glows in the dark a very vibrant shade.
    I'm looking forward to dividing it in the spring so I can have more around the garden.
    Flowered from May until Oct last year

    Billericay - Essex

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • raisingirlraisingirl Posts: 7,093
    edited January 2019
    I can't find it. It's not Raven - I agree with Jenny, that one is more plum than purple IMO. It's not Sour Grapes either - that one fades to pink. I haven't got a decent photo of it in flower - this is the best I have, taken early so it was only just coming into bloom

    you can see it has a white 'lip' like sour grapes but it lacks the pinkiness and it stays the colour you can see. (Unless, I suppose, they are like hydrangeas and my acidic soil affects the colour of the flowers). I bought it un-named at a charity plant sale so unless anyone recognises it, I'm a bit stumped. I've gone through all the Google images I can find but can't see a match.

    Have you tried short versions of either perovskia or nepeta? Are they too blue, maybe? They both have more colour punch than most of the penstemons (except 'Garnet' which is knockout but the wrong colour)
    Gardening on the edge of Exmoor, in Devon

    “It's still magic even if you know how it's done.” 
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