• AGM plants

    AGM plants have been through a rigourous trial and assessment programme. They are:

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

Plants

Astrantia 'Roma'

Picking the best cut flowers

Discover expert plantsman Graham Rice's top 10 Award of Garden Merit winning, easy-to-grow cut flowers

Annuals

Perennials

Trees

Shrubs

Bulbs

Herbs

Fruit

Vegetables

Greenhouse

Climbers

Plants for pollinators

Plant awards

Lucy Roche (RHS Staff) avatar

Meeting garden royalty

by Lucy Roche

An RHS Plant Trial explores the charms of an under-appreciated genus

Read more about Meeting garden royalty

RHS Plant Trials and awards

Every year we trial dozens of plants to find out how they will perform in your garden. The very best are awarded the RHS Award of Garden Merit (AGM).

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Trialling plants at Wisley