Open garden creates magnolia envy

by Justin Russell on July 26, 2010

Magnolia denudataThe Toowoomba range is host to some fine gardens, but in my view they don’t get much finer than the rangetop paradise in Leslie Street known as Stirling House. Established by John and Jill Stirling in the 1960’s, and now owned by hospitable couple Colin Fitzgerald and Dr Viola Nicholson, the garden comprises two acres of magnificent cool climate trees, hundreds of roses, classic bluestone paths, and lots of lovely woodland perennials.

What Stirling House is most famous for though, is its camellias. There are dozens of beautiful specimens scattered amongst the garden, most in full flower when I visited last weekend and yet all of them outdone by the prized yellow species Camellia nitidissima.

As stunningly beautiful as this camellia was on the day (I’ll write about it in a later article), it was actually outshone for sheer visual splendour by another exotic plant. Like a gifted Academy Award winner being upstaged by a glamorous supporting actress, the star of the show when I visited Stirling House was undoubtedly a Magnolia denudata in full, exquisite bloom.

The Yulan, as Magnolia denudata is commonly known, makes an arresting sight when it produces masses of huge, pure white blooms on bare wood during the second half of winter. It certainly stopped the 18th century plant explorers dead in their tracks. Imagine the sheer astonishment of a sweaty English botanist, trekking along an ancient pathway in the lower Himalayas, stumbling across a misty valley bleached white with the blooms of thousands of magnolias. The contrast with the less exotic flora back home would have been absolutely stark. It still is, especially when the blooms are admired against the backdrop of a clear winter sky.

Magnolia denudata was named for its region of origin in central China. Here it can still be found growing in moist upland forests amongst camellias and rhododendrons on deep, fertile soil. The genus magnolia was introduced to horticulture by the famous botanist Sir Joseph Banks, who was absolutely delighted to open a consignment from China in 1792 containing the first ever specimen of Magnolia denudata from Dr Alexander Duncan, a surgeon working in Canton.

From this point on, the flames of an international love affair with magnolias were kindled, and it’s fair to say that the passion for these magnificent plants never really went out. In 1820, a retired French army captain by the name Etienne Soulange-Bodin crossed Magnolia denudata with Magnolia liliiflora to produce the hybrid Magnolia x soulangeana. Combining the best qualities of each of its parents, “soulangeana” is now the most widely grown of all the deciduous magnolias, lighting up Toowoomba during August and September with its opulent, pink blushed flowers. It’s a decent plant, but by no means the best magnolia in cultivation.

In addition to the Yulan magnolia described at the outset, there are some other beauties worth seeking out. For small gardens Magnolia liliiflora ‘Nigra’ is the pick. It’s a slow grower that will eventually reach just a few metres tall and produces lovely dark purple flowers on a multi-stemmed shrub. Almost as good is Magnolia stellata, which has white star shaped flowers and rarely exceeds three metres in height.

For larger gardens my picks would be ‘StarWars’ a tall growing variety that continues flowering through summer and autumn, ‘Vulcan’ with it’s striking purple-red flowers, and ‘Elizabeth’, a classy, late flowering yellow cultivar that grows strongly and is capable of reaching six metres or more in height. Use it to accompany your yellow flowered camellia and be the envy of all your gardening friends!

If that’s your ambition, and it’s not actually one that I’d seriously recommend, better get your conditions right. Magnolias are ancient plants dating back to prehistory, but they do have fairly specific requirements to really perform well. Chief amongst these is a mountain soil that’s rich, deep, well drained and slightly acid. A cool climate is preferred, and protection from severe late winter frosts is important to prevent the flower show from ending in tears too early in the piece.

This all sounds quite specific, but thankfully, the perfect conditions for growing brilliant magnolias can be found all along the Great Dividing Range, from the Bunya Mountains in the north to the suitable parts of the Granite Belt to the south. For those out west, magnolias are a trickier proposition. The best advice I can give is to try the evergreen cultivars of Magnolia grandiflora such as ‘Little Gem’, ‘St Mary’s’ and ‘Exmouth’. You shouldn’t feel left out. The evergreens are just as stunning as their deciduous cousins, and more tolerant to boot.

First published in the Toowoomba Chronicle 24th July 2010. Photo by Justin Russell – Magnolia denudata, Stirling House, Toowoomba.

{ 2 comments… read them below or add one }

1 Erin Devey August 7, 2010 at 11:59 pm

I drive by two beautiful magnolias on the school run everyday…I very nearly turned up on their doorsteps last week and asked to pinch some blooms! My boys will be very happy to know of the ‘Starwars’ variety!

2 Jane Murphy June 17, 2011 at 7:19 pm

For my money, Soulangeana is a superb magnolia, with exquisitely formed flowers, unlike some of these modern hybrids like Vulcan, which produce oversized inelegant flowers. It’s all a matter of taste.

Leave a Comment