Overwintering Half-Hardy Perennials | Dahlias, Salvias, Gaura, Penstemon Etc. 

So pleased you are working in inches as a person of a certain age I cannot visualise centimetres ,such great advise.

As usual a extremely helpful video. I rely on your advice because it’s so clear, straight to the point and you’re in the UK, which is a wonderful bonus.

Great advice. Particularly like the suggestion of the storage box...which can also serve as a humidity dome. Thanks, Rosy.

If your tote lid isn't clear you can use that as the floor and use the actual tote as the dome. I put holes for drainage and use heavy duty paper clips on the lid to keep a little gap for ventilation. Has worked great as an cold frame or a propagation chamber. Great video, thanks.

So glad i found your channel great advice i lost all my penstemon last winter including all my cuttings becsuse i wssnt organised and everything was too wet in my big unheated greenhouse. Its all a rush at this time of year The plastic box is a great idea too even in an unheated greenhouse for extra protection

So very helpful. Especially the storage box - I have two sitting empty just waiting to be employed. And now I know what to do with them. Thank you for such clever, simple and sustainable gardening tips.

Thanks once again for an informative and totally absorbing video.I have used the trick with the the clear packing boxes for my cuttings this year and have had real success.

I love your adaptation of a cold frame ❤

Thank you, Rosy! I've learned a lot from you!

In the middle of the UK, I leave my salvias and dahlias in the ground and mulch them well. They have survived for years. I consider myself lucky.

Thank you Rosy! Also, for those who don't like flowers in the house, you can use recycled tins and keep them out in the yard in view of the windows...I do this and the bees and even hummingbirds continue to visit the wee vases.

I leave my dahlias in the ground and cover with leaves with a cage over to stop leaves from flying away in the wind. We live just two block from the sea and BC Canadazone 8. Love the plastic storage box.

Great video and love the busy bumble bee getting stuck in before winter sets in. I left my Dahlia in the ground last winter and lost every one .

Timely good advice 😃

Love your videos…such great common sense suggestions!

I subscribed cause your amazing on detail & u tell exactly how the plant grows- thanks ,.

Very useful Rosy...

Fabulous! Thank you!

Love to learn more different type of pruning.

Learnt lots thete. Thank you.

Great video Rosie, would you use this technique for all salvias? We have amistad and the new rockin series. Thanks

Suggestions for veronica?

Hi Rosy, I have seen a lot of people say that tulips should be planted in November and then dug up again and discarded to prevent the risk of tulip fire the following year. However this year I'm wanting to plant a lot of species tulips which I'm hoping will naturalise and Darwin hybrid varieties to get the best value for money in terms of perennialising. However, I'm worried that if I leave the tulips in the ground to naturalise/come back the following year once they're done blooming, will they get tulip fire or are the species/Darwin hybrid varieties resistant to this?

Rosy, at what temperature should Gaura be overwintered?

What about Hyssops? I have this unrully bunch in the front garden, and actually want to move them - but nit till spring…in the meantime how low do I cut them?

Russian sage?