There are few places in Britain where gardening feels quite so improbable, and quite so intoxicating, as on the Isles of Scilly. Set 28 miles off the coast of Cornwall, this low-lying archipelago is washed by the Gulf Stream, blessed with frost-free winters and bathed in luminous Atlantic light. The result is a scattering of subtropical gardens that seem to belong somewhere between Cornwall and the Caribbean.
A garden-focused trip to the Isles of Scilly is not just about plants; it’s about microclimates, maritime history and the quiet pleasure of wandering paths scented with salt and eucalyptus.
Tresco Abbey Garden
The crown jewel of Scillonian horticulture is Tresco Abbey Garden. Established in the 19th century by Augustus Smith around the ruins of a Benedictine abbey, this internationally renowned garden is home to more than 20,000 exotic plants from over 80 countries.
Here, South African proteas bloom alongside towering Chilean palms. Bright red aloe flowers spear the sky in spring, while echiums hum with bees in early summer. The garden’s sheltered terraces, framed by stonework and sea views, create a series of outdoor “rooms” that reveal something unexpected at every turn.
Allow at least a full morning here. Climb to the top of the castle for sweeping views across the archipelago, then linger in the Valhalla Collection, where ship figureheads, salvaged from Scilly’s maritime past, gaze out to sea.
Old Town Churchyard, St Mary’s
Not all Scillonian gardens are formal. On St Mary’s, the largest island, the churchyard at Old Town Churchyard is a quiet botanical surprise. Wind-shaped pittosporum hedges and towering agapanthus frame weathered gravestones, while succulents spill over low stone walls.
It’s a place where gardening feels organic rather than curated. The salty air and mild climate allow plants to grow with a kind of confident abandon, blurring the edges between cultivated and wild.
Community Gardens and Private Corners
Throughout St Mary’s and the off-islands, you’ll glimpse vibrant gardens tucked behind granite cottages. On St Martin’s, tiny plots brim with geraniums and cordylines. On Bryher, hardy plants crouch against Atlantic gales, proving resilience can be beautiful.
Keep an eye out for occasional open garden events, where residents invite visitors through creaking gates into lush courtyards bursting with colour. These intimate spaces often feel more personal than the grander horticultural attractions.
A Garden Island Hop
One of the joys of visiting gardens on Scilly is that travel itself is part of the experience. Small inter-island boats criss-cross between St Mary’s, Tresco, St Martin’s and Bryher, offering ever-changing views of turquoise shallows and white sandbars.
Between garden visits, stop for crab sandwiches, watch oystercatchers pick along the tide line, or simply sit among wind-tousled grasses and absorb the stillness.
When to Visit
Spring is perhaps the most dramatic season, when exotic blooms are at their peak and the islands feel freshly awakened. Early summer brings long days and warm light, perfect for photography and unhurried exploration. Even autumn retains a softness thanks to the temperate climate.
A garden-themed trip to the Isles of Scilly is a gentle immersion rather than a whirlwind tour. It’s about texture and scent, sea spray and sunlight, and the quietly astonishing sight of tropical plants flourishing on the edge of the Atlantic.
In Scilly, gardening isn’t just a hobby, it’s a testament to what can thrive when climate, care and curiosity come together.
