RHS gives plant award system complete overhaul

RHS gives plant award system complete overhaul

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RHS gives plant award system complete overhaul RHS gives plant award system complete overhaul RHS gives plant award system complete overhaul RHS gives plant award system complete overhaul RHS gives plant award system complete overhaul

Did you realise that there are approximately 80,000 plants available to British gardeners?  A mind-boggling choice…..

Fortunately, as early as 1922, the RHS (Royal Horticultural Society) came up with a system of rating plants based on their garden worthiness.  Revolutionary for it’s time, the AGM (Award of Garden Merit) was the first award based on how plants performed in real gardens, rather than how they looked when cut and presented in a vase.  For some reason it never caught on, so was relaunched in 1922, with the intention to re-assess all plants awarded every ten years.

The AGM is a fantastic way to help you cut through the overwhelming choices on offer.  If it has an AGM label, then you can be reasonably sure that you are getting a very garden-worthy plant.  Use it to help you spend your money wisely and cut down on the amount of molly-coddling you need to do.

AGM’s are given according to the following criteria:

  • Excellent for ordinary use in appropriate conditions.
  • Of good constitution.
  • Essentially stable in form and colour.
  • Reasonably resistant to pests and diseases.
  • Available to buy in the UK.

Here is a really great Telegraph article that summarises the award winners and losers this time around.

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The RHS has also updated it’s hardiness ratings:

  • H1a Warmer than 15C/59F Tropical plants for indoors and heated greenhouses
  • H1b 10 to 15C/50 to 59F Subtropical plants for indoors and heated greenhouses
  • H1c 5 to 10C/41 to 50F Warm temperate plants for outdoors in summer
  • H2 1 to 5C/34 to 41F Plants needing a frost-free greenhouse in winter
  • H3 -5 to 1C/23 to 34F Plants generally hardy outside in mild areas
  • H4 -10 to -5C/14-23F Plants hardy outside in most of the UK in an average winter
  • H5 -15 to -10C/5-14F Hardy outside in most of the UK in severe winters
  • H6 -20 to -15C/-4 to 5F Hardy outside in the UK and northern Europe
  • H7 Colder than -20C/-4F Hardy outside in the severest European climates

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RHS gives plant award system complete overhaul RHS gives plant award system complete overhaul RHS gives plant award system complete overhaul RHS gives plant award system complete overhaul RHS gives plant award system complete overhaul

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RHS gives plant award system complete overhaul

2011 Society of Garden Designer’s Garden Design Student of the Year.

RHS gives plant award system complete overhaul

2012 Association of Professional Landscape Designers International Student Landscape Design Award, Joint winner.

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