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Question for all of you guru. Illumination the long flowerer that doesn't produce seed. How do you multiply???? If I decided to buy how, seed, plugs?? I'm confused. Do they revert to normal foxglove in second year as someone at work said they will. What are people's opinions?? 


They're hybrids, crossed with something tender so not very hardy RD. They won't revert. If they live long enough you might be able to split them. You'll have to buy plugs or plants, there's no seed.

I think Verdun, in his tropical paradise, may have got some through a winter.

Lots have died round here.

Hiya Red

They will simply regrow like any other perennial in spring.  They won't revert. Buys as plugs.

First Year for me but I will divide mine in summer.

Just noted Nut's comments which are similar.  

Agree Illumination is a bit of an unknown product re hardyness.  They should be hardy. They are beautiful and very lomg flowering

So if you want to make insurance policies for winter am I hearing division only. I'm a scrimper you see and worried as they seen costly but I have heard good things re their beauty!!

I guess they are expensive. Got mine at good price and well happy with them.  If they grow again next spring ....I.e. that they are truly perennial....then they will be very good value.

They will,be sterile so no seeds.  Root cuttings or division....will make that decision when I dig one up in late summer


Did you source on line. Was thinking of verbascum or these foxgloves now torn! I have 2 foxgloves only and like the height element to them. 

Hiya Red

Yes source online .

I too like height in the border from perennial flowers.....I grow agastaches, veronicastrums, verbena bonariensis, delphiniums, foxgloves, verbascums, acteas, etc etc.  

Re agastaches check out Black Adder and Sangria....respectively inky blue flowers and pink flowers on erect tall (5') plants all summer long.  

Crickey I can't take 5' unfortunately. We are built up higher than neighbouring gardens so that would get thrashed by the wind. I remember you telling me about that before and my heart sank as it's pretty but just too big for me! 

Ok, there are shorter varieties of agastache.  Why not consider a couple of grasses like deschampsias ?  Flowerimg all summer, sway/billow in the wind and great foil for flowering plants.  How about Veronica then for vertical element?  Blue or white erect flowers not needing staking ??

My Veronica and I want to call it gentalis is a real low carpet type with white talk flower spikes, not the prettiest or best at looking maintained!! I do keep splitting it and giving bits away. But people dont seem to reciprocate!! 

Veronica spicata Red.  Upright, well behaved long flowering plants.  I usually divide duriNg the winter to.provide lots of flowers this summer.  This is not the "carpeting " weedy variety 

Verdun can't you set up a mini business sending baby versions of these plants to Us! Lots you have told me about I can't seem to find locally without ordering multiples or large plants for 7/8 pounds! I visit GC's to avoid p&packing but they don't have variety! Seems gardening is going internet based and order an item at a time when you hear of something!

Red, check out a thread posted by one of our most handsome members about small online nurseries.   I agree postage costs are increasing but I recently had 7 small plants for £15 plus £8  postage.  They were not plugs but plants busting to be potted on into 1 litre pots.  They were plants I could not get locally too.  

I will be going to local GC for their small perennials over the next month.  They will be priced at about £2 ...maybe less if you buy 6.....and they really will bulk up quickly if you pot on.  

Im always looking for value for money but quality and variety too.

Ashleigh 2

Hi Verdun, do agastaches cope with partial shade? I need something with height that blooms for a long time.

Hiya Ashleigh

Good drainage is essential. They like as much sun as possible.  

Considered aconitum?  They do well in partial shade and some flower for ages from mid summer.  But,  Verbena bonariensis will do well in partial shade as well as in the sun ....not many better for height and long flowering


Ashleigh 2

Thanks, I have Verbena bonariensis in another part shade area, I love it, I googled Aconitim and it's lovely but flowers quite late in the year. The place I'm thinking of has direct sun for about 3hrs a day and open sky, the drainage is good, should I risk trying Agastache or would it struggle?


Then try one called Black Adder.  It's about 4' tall...maybe taller......with inky blue flowers with black touches.  It's a lovely thing.  It may not flower so.profusely as it would in full sun. In the autumn you can carefully divide it and pot it won't survive the winter in cold areas.  Another variety is Sangria which is taller and has pink flowers.  

Miscanthus variegatus is a tall white and green vsriegated grass that adds height and nice contrast to Black Adder.  You might like to try that 

Re aconitum I have early amd late flowerimg varieties.  One flowers from July for me.  The other in late August.  

Ashleigh 2

Thank you Verdun, do you know the names of the Aconitum(s)  you have?

Seriously verdun I think you should start a thread that introduces new plants or old fashioned perennials people haven't heard of. Simply an explanation A picture your experience and how to propagate. I would be your number one fan. Just looked up aconitum and it's stunning and have never heard of it! Shame it's 1.2m. You must have a large garden!!

Hiya Red.

Check out aconitum stainless steel.  It's slightly less vigorous....for me anyway.....and later flowering but it's delicate colouring is stunning.

Ashleigh I also grow Sparks Variety and another unnamed one  that was given me.  

No...middling size garden.  In two parts....front about 20metres by 20 metres and the back somewhat larger.  

Think I have a reasonable knowledge of plants etc but this forum is a great educator.    Picked up lots of different ways of,doing things too.