Tim Longville enjoys the mixture of plantsmanship and laissez-faire gardening that has created a Devonshire garden of great atmosphere and personality. Photographs by Val Corbett.

Jenny Parsons’ garden at Regency House on the edge of the Devon village of Hemyock in the Blackdown Hills is not only in the country, it is, in every sense, a country garden, as Jenny is deeply involved in a whole range of rural activities. She’s a keen supporter of the local hunt, of the Countryside Alliance (its placards tend to have a second life as her kneeling pads when weeding) and of the local branch of the Pony Club, which has held its annual three-day celebratory beano here for the past 20 years.

Regency House, Hemyock

An enticing glimpse into the vegetable garden from the blue-and-white garden

Among much else, that involves the youngsters crawling through the pipe at the top of the garden’s lake, then swimming across its width. The final event of the whole extravaganza—all of which is clearly huge fun for everyone involved, not least for Jenny herself—is a bonfire barbecue for the parents.

As this is also a small working farm, run by Jenny with Matthew Boyd—raising Dexter cattle, Jacob sheep, pigs, hens and, of course, horses—and, as the house also offers bed-and-breakfast accommodation, it’s mildly miraculous that this all-round enthusiast has somehow also found the time and energy over the past 25 years to create an unshowy but intensely sympathetic garden of some five acres.

No designer has been involved or even any single grand plan—it’s simply grown by degrees, as her passionate love of plants (there are more than 1,000 in her on-going list, which she calls ‘an external hard drive for my dwindling brain’) has urged her on to one new development after another.

Regency House, Hemyock

Light through the trees makes for a magical effect on the lake. The lush planting includes Primula bulleyana and Hosta Francee

The house was built as the village rectory, but became a private house in the early 20th century. Despite its current name, it isn’t actually a Regency building, but an early Victorian house, although one built in a slightly archaic late-Georgian style. When Jenny arrived in 1990, there was very little here by way of garden, ‘except a few big trees, very gratefully received, and the giant magnolia on the back of the house’.

Gardening here is a mixture of positives and negatives. The soil is clay, but the climate is wet, so at least it doesn’t tend to bake and crack in summer. Although it’s nearly 500ft up, the garden’s on a slope, so frost tends to roll away, plus trees and the hill above, Conigar Knob, provide a good deal of shelter.

Regency House, Hemyock

Who needs flowers when you have so many shades of green hosts and ferns?

One great advantage Jenny inherited was the small walled garden close to the north side of the house, with its atmospherically crumbling double walls (north-facing walls of flints; south-facing ones of handmade bricks). All of this area’s angles were clearly handmade, too, as none of them are true. Nowadays, a central ‘avenue’ of espaliered apples—cookers on the right, eaters on the left—provides an illusion of symmetry.

A bottom bed is filled with tender or tender-ish perennials, such as salvias, dahlias, argyranthemums and Verbena bonariensis and the right-hand side is dominated by a huge Magnolia cylindrica. A top bed contains, among an eclectic mix of perennials, a chair made out of horseshoes from Jenny’s farrier son and a plant support, at the moment for Geranium psilostemon, which he made out of the ‘precious’ shoes of the most loved of all her horses.

Regency House, Hemyock

A secret seat surrounded by hedges and a froth of Erigeron karvinskianus

Beside and to the west of the walled garden is the similarly sized blue-and-white garden, in which beds including violas, alliums, irises, Brunnera Jack Frost, variegated hostas, shrubby potentillas, white honesty, blue salvias and argyranthemums surround the central focal point of a box square filled with Stipa gigantea and edged with a variety of hardy geraniums. It’s typical of Jenny’s relaxed and jokey style that a mysterious hole at the bottom here—once, in fact, the site of the garden’s boiler—is now described as the Dead Scarecrow Department, as it contains a bizarre bedraggled collection of specimens from previous years.

On a much larger scale is the bog garden running down the slope, yet further to the west. Its central stream is fed by the house’s original water supply and it ends in a sizeable circular lily pond.

Immediately on either side of the stream is a dense and largely herbaceous planting (although occasional willows and viburnums, for example, add height and presence), which includes gunnera, Rheum palmatum, hostas, primulas, ferns, irises, foxgloves, Geranium macrorrhizum in its various colour forms, the single-flowered form of Ranunculus aconitifolius rather than the more commonly seen double and, perfectly at home in this semi-wild situation, that pretty but invasive thug, Euphorbia cyparissias.

Regency House, Hemyock

Jenny and her dog, Whistle

Further out, on the banks on either side, is a discriminating selection of shrubs and small trees: more willows and viburnums, several berberis, acers such as A. palmatum Atropurpureum and A. davidii Serpentine and the deliciously scented Heptacodium miconioides (syn. H. jasminoides).

The lawn running out from the west-facing back of the house—where the original giant magnolia has since been joined by a wisteria and a myrtle—is kept largely clear of detailed planting (the only except-ion, a large metal fern in one corner, is another of her son’s creations). That’s to retain the view, first to the field, usually full of Jacob sheep, and then to the hills beyond.

At its south-western corner, a trio of young Acer griseum signals the way to the lake, which is full of golden orf, although it’s hoped that a recently arrived otter will keep their numbers under control. Tall trees surround it—a huge Douglas fir, a quartet of cricket willows, various dogwoods—and around its edges is a series of ‘mini-bog-gardens’ filled to overflowing with gunnera, lysichiton, primulas, ligularias and irises.

Looking back towards the house from the upper end of the lake (and the pipe through which those willing Pony Club members have to crawl each year), the different colours, textures and shapes of the trees create a fascinating tapestry effect: unpretentious but extremely effective. Jenny can’t resist pointing out that the stream running parallel with the lake on its far side is called Lickham Bottom Water, which, combined with the earlier hill called Conigar Knob, produces a roar of laughter.

Regency House, Hemyock

The huge inherited Magnolia cylindrica dominates the top of the walled garden, with shrubby potentilla and silvery clumps of cardoons (Cynara cardunculus)

Although the largest element in the garden, the lake is far from the end of it. Tucked away in sheltered corners beside the drive are various smallish beds, including a spring one and a winter one, which Jenny describes as among her favourites to work in, because the soil there is ‘moist, rich and fertile’.

North of the walled garden, as the wooded hillside rises ever more steeply, is an area known as the Back of Beyond, where thinning has already started and where she has visions of eventually creating ‘a proper woodland garden’. ‘I must be mad,’ she adds, not, of course, meaning a word of it.

The garden at Regency House, Hemyock, Devon (01823 680238) opens for the NGS. Details of the B&B accommodation are at www.regencyhousehemyock.co.uk

Click here to view a charming short video by Jenny about The Animals

Regency House, Hemyock

This year’s glamorous scarecrow

REGENCY HOUSE, HEMYOCK: NEED TO KNOW

SIZE: Five acres or so

SOIL: Clay, mildly acid to neutral

ALTITUDE: 480ft

CLIMATE CHALLENGES: ‘This is a wet area, but at least that stops our clay soil baking hard in summer,’ advises Jenny. ‘We’re on a slope, so frost tends to roll away and we’re well sheltered from wind by trees and the neighbouring hill’