New RHS UK hardiness system.

[Yorkshire Kris]

A new hardiness system will, be released next year. Full details and an overwintering guide in the latest gw mag.

[flounder]

Doesn't matter who releases what, it won't replace local experience

[Yorkshire Kris]

Doesn't matter who releases what, it won't replace local experience

Very true plus they have Mahonia as more tender than a Trachycarpus!

[flounder]

I have it down as more dangerous than a Trachycarpus

[The Codfather]

Did they base it\rest it in the several locations in the country........I bet not !

[Dave Brown]

I've looked into hardiness in quite some depth, and it is like weather forecasting.... there are just too many variables. Two major problems are initial plant health, and how the person grows it. Either of those are not right, and a plant is much more likely to succumb to winter

[jungle jas]

Doesn't matter who releases what, it won't replace local experience

It wont make the plants any hardier either.

[GREVILLE]

You won't beat the HTUK hardiness system - check every post

[redsquirrel]

Doesn't matter who releases what, it won't replace local experience

Very true plus they have Mahonia as more tender than a Trachycarpus!

could be true,there were a few dead ones round this way last year

[karl66]

I have about a dozen mahonia's , they went through last winter unmarked?, i'm shocked as i thought they were as hardy as an oak tree!. the coldness at present is a bit worrying as its unusual round here at this time of year, when i came in last night it felt like a november night. karl.

[jungle jas]

I have about a dozen mahonia's , they went through last winter unmarked?, i'm shocked as i thought they were as hardy as an oak tree!. the coldness at present is a bit worrying as its unusual round here at this time of year, when i came in last night it felt like a november night. karl.

Yes a crappe summer and now looks like an early crappe Autumn. The joys of gardening in the UK.

[Conifers]

I have about a dozen mahonia's , they went through last winter unmarked?, i'm shocked as i thought they were as hardy as an oak tree!.

Some mahonias are hardier than some oaks, but the hardiest mahonias are a lot less hardy than the hardiest oaks. There's a lot of variation in both genera, though.

[cannondale28]

I love these Maps from the Met Office. Yep, local knowledge is key for sure but the maps are still nice to look at.

http://www.metoffice.gov.uk/climate/uk/ ... pavge.html

Jerry

[Conifers]

I love these Maps from the Met Office. Yep, local knowledge is key for sure but the maps are still nice to look at.

http://www.metoffice.gov.uk/climate/uk/ ... pavge.html

Jerry

Except they don't have maps of absolute minima and maxima. Useless!

[cannondale28]

I love these Maps from the Met Office. Yep, local knowledge is key for sure but the maps are still nice to look at.

http://www.metoffice.gov.uk/climate/uk/ ... pavge.html

Jerry

Except they don't have maps of absolute minima and maxima. Useless!

Just been looking at these maps and looking at how things have changed over the last 50 years. I thought the south would seem drier than than the midlands and there's a small area east of Inverness that seems to get very low readings for rainfall, easily as dry as anywhere else in the UK. A dry part of Scotalnd, never thought I'd see that. Sorry, getting a little bit nerdy here.
Worth a look though on a rainy Sunday.

Jerry