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Award-Winning Trees

Buy with confidence: every tree in this section holds the RHS Award of Garden Merit, independently assessed for reliability, ornamental value and consistent garden performance across UK conditions. RHS AGM trees have been trialled to confirm they deliver on their promise, making the award a practical guide rather than just a label. Varieties here include Liquidambar styraciflua for outstanding autumn colour, Cercis siliquastrum for spring blossom and Laburnum x watereri 'Vossii' for its dramatic flowering arches.

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How to choose award-winning trees

The FAQs below cover what the RHS AGM means in practice, whether AGM trees are harder to grow, which award-winning trees suit small gardens and the best AGM trees for autumn colour.

What does the RHS Award of Garden Merit mean?

The RHS Award of Garden Merit (AGM) is given to plants that have been independently trialled and assessed by the RHS to confirm they perform reliably in UK gardens. An AGM tree will be constitutionally strong, resist common pests and diseases, and deliver consistent ornamental value. The award is reviewed periodically, so current holders are assessed against up-to-date growing conditions.

Are RHS AGM trees harder to grow than non-awarded varieties?

RHS AGM trees are not harder to grow. The award is specifically given to plants that perform well without requiring specialist care or conditions. AGM trees are intended to be accessible to the ordinary gardener, not reserved for specialists, making them a reliable starting point when choosing an unfamiliar variety.

Which award-winning trees are best for small gardens?

Award-winning trees well suited to small gardens include Cercis chinensis 'Avondale', Prunus incisa 'Kojo-No-Mai' and Acer palmatum varieties. These are compact or slow-growing, deliver strong seasonal interest and can be managed at a scale appropriate to a smaller plot.

Which AGM trees have the best autumn colour?

AGM trees with outstanding autumn colour include Liquidambar styraciflua, Amelanchier lamarckii and Cercidiphyllum japonicum. Liquidambar holds vivid red and orange foliage well into autumn; Amelanchier turns orange-red reliably each year; Cercidiphyllum produces unusual apricot and candy-pink tones, combined with a distinctive caramel scent as the leaves fall.

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