Sir Harold Hillier Gardens

Sir Harold Hillier Gardens is this lovely spot tucked away near Romsey in Hampshire, England. It is an arboretum that is all about celebrating trees, shrubs, and rare plants in a big way.

Back in the fifties, a nurseryman named Harold Hillier got hold of Jermyn’s House and its grounds, and he started building up what would become this incredible collection. He handed it over to Hampshire County Council in the late seventies to keep it going as a charitable trust.

Hillier was knighted a few years later for his contributions to horticulture, and sadly passed away not long after. The place even got listed on the National Register of Historic Parks and Gardens towards the end of the nineties, which shows how special it is historically and for gardening fans.

Run as a charity these days, the gardens stick to Hillier’s ideas around growing plants, protecting them, teaching people, and just having a good time outdoors. A team of skilled gardeners and tree experts looks after it, with help from students and heaps of volunteers. Roy Lancaster, who was the first curator, is still involved as a patron.

What makes it stand out is the massive variety of hardy trees and shrubs, including national plant collections and champion trees that are top-notch examples in Britain and Ireland. One highlight is the dawn redwood, which came from China not too long ago and is now the gardens’ symbol.

You will find rarities like the big-leaf magnolia with its huge white flowers, or the fossil tree called Wollemia that has started flowering here. There is also a spice bush hybrid with striking red blooms and a critically endangered dragon tree sporting violet flowers.

Conservation is a big deal; they grow loads of threatened species and get stuck into projects locally and worldwide.

They run plant trials too, like one on hypericum with the Royal Horticultural Society, checking out which ones are great for gardens, sorting names, and even looking at medicinal uses. The trial area is open for visitors to poke around.

The layout keeps things interesting all year round. Acer Valley is shady with Japanese maples under old oaks. The Centenary Border is a long stretch of mixed plants that always has something going on.

For kids, there is an education garden opened by David Attenborough, with areas like Mediterranean spots, oak zones, bamboo that makes sounds, exotic plants, herbs, ponds for dipping, and an allotment for veggies.

Other cool bits include the Gurkha Memorial Garden with plants from Nepal and a traditional stone rest spot, a heather garden that shines throughout the seasons, the Himalayan Valley lined with azaleas, rhododendrons, and hydrangeas, and Magnolia Avenue full of mature magnolias planted by Hillier himself.

Do not miss the Winter Garden, packed with witch-hazels and plants chosen for their colourful stems and scents when it is cold out.

On the building side, there is a visitor pavilion from the early noughties, blending modern and traditional styles, with a gallery, restaurant, gift shop, and education bits.

Jermyn’s House, which might date back centuries, handles offices, more dining, and the herbarium started in the mid-nineties. That herbarium has specimens from Hillier’s travels, especially oaks, and it is open for research if you book ahead.

For visitors, it is all about strolling through the landscapes, soaking up the education, and supporting the conservation work. Open daily, it is family-friendly with play and learning opportunities, and there are events to join.

Whether you are into nature walks, plant spotting, or just relaxing in beautiful surroundings, it is a gem worth checking out.