Plant trials & awards

Every year we undertake plant trials with more than 30 different plant groups, in our ongoing search to identify the very best plants for your home and garden, with those plants that perform at an exceptional level receiving the RHS Award of Garden Merit (AGM)

Award of Garden Merit (AGM)

The RHS Award of Garden Merit helps gardeners choose the best plants for their garden

Award of Garden Merit lists

See the most recent AGM lists lists for ornamental plants, fruit and vegetables

AGM Plant search

Find outstanding plants for your garden – from annuals, through to bulbs, and vegetables

RHS Plant Trials

We trial a wide range of plants to test their health, performance and weather endurance

Current RHS Plant Trials

See the trials taking place this year and beyond that are on show to garden visitors

Grower guides

Once an RHS Plant Trial has finished, we share the findings to help you choose the best plants

New plants with Graham Rice

Colour-changing cercis wins Chelsea Plant of the Year

New forsythia is sunny all summer

A small improvement makes a big difference

Colour-changing cercis wins Chelsea Plant of the Year

New forsythia is sunny all summer

A small improvement makes a big difference

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The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.