Tulipa sylvestris – the woodland tulip

The woodland tulip is the common name of one of the most widely distributed wild species, however, its true origins are far from clear and in the form we know it today, it is associated with human cultivation. It is commonly found in Western Europe in orchards and vineyards where it thrives on the disturbances to the soil which it encounters.

Tulips sylvestrisTulipa sylvestris is often found growing in woodland, but although it thrives, spreading rapidly by underground stolons, it rarely flowers well in such situations. I have heard stories of it being found growing in old, overgrown churchyards, but never flowering. When these grounds were cleared and dug over, the disturbance would stimulate the tulips to flower the following year creating wide drifts of gleaming yellow to everybody’s surprise; a reward for all the effort.

It grows some 15 inches tall with bold, clear yellow flowers. Its vigour no doubt coming from the fact that it is a tetraploid species. With double the normal number of chromosomes it is clearly a natural hybrid of some sort and botanists can trace its lineage back across Europe and Norther Africa to the centre of tulip origins in Asia via various other similar species.

As a garden plant, Tulipa sylvestris is best grown in full sun and will clearly not mind if the ground is occasionally disturbed through digging. I recently photographed a fine display in a woodland setting, but suspect that the plants had only recently been planted there, as over time their flowering in such settings declines rapidly.

I was so impressed with what I saw last week that I have decided to start adding it to some of my trial perennial meadows to assess its long term performance. The principle of the perennial meadow is that once planted, it should not need regular disturbance, but on the other hand I will be planting in open sunny situations which hopefully will keep this dainty tulip happy. If not, I will have to do a bit a digging from time to time.

Tulipa turkistanicaSpecies tulips make fine additions to perennial meadows as they are tough and do not die out in the way that is typical of many of the popular hybrid cultivars. I regularly use Tulipa turkistanica which is especially early flowering. It, like T. sylvestris, is quick to spread by both seed and stolons and no doubt the two together would create a long sequence of flower – creamy white and then clear yellow.  Yes, its time to start planning this autumn’s bulb order.

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Native Plant Gardens in The Netherlands known as Heemparken

Thijssepark AmstelveenWith the opening of the new Native Plant Garden at the New York Botanical Gardens earlier this month I was inspired to pay a return visit to the heempark in Amstelveen which is recognised as one of Europe’s best.

The Dutch landscape is in part manmade and has been intensively managed for centuries. The native flora, such as it was, became threatened here far earlier than in other countries and this was recognised by naturalists in the last century who began to campaign for its conservation.

Jac. P. Thijsse (1865 – 1945) was a leader in the conservation movement of The Netherlands. He wrote many books and popularised the study of native plants and animals in their habitats inspiring children through his illustrated books and school posters.

Thijssepark Amstelveen

One of his hobbyhorses was the establishment of a series of public parks to bring the native flora within reach of the general public. These, so-called, heemparks were not conservation areas, but rather seen as educational and socially desirable.

Thijssepark Amstelveen

The city of Amstelveen, situated hard against the boundary of dominant Amsterdam, seized upon this as an idea to stimulate its economy and create an attractive living and working environment. It was also a pragmatic choice, as the wet acid soil of the region did not favour conventional planting practices. The city has six such parks and ten more, so-called, native green objects which are small gardens and green corridors that together have succeeded in making Amstelveen a highly desirable green suburb to live in even though it is situated right under the flightpath of Schiphol Airport.

Thijssepark Amstelveen

The jewel in Amstelveen’s crown is the park it created dedicated to the name of Jac. P. Thysse. The park covers an area of 5.3 hectares and was created in three phases between 1940 and 1972. Typically Dutch, it follows a pragmatic design, being squeezed into leftover land surrounding one of the city’s villa districts. Long and narrow in form, its many drainage ditches follow the U shaped form of the park and are frequently crossed by simple low bridges. Different habitats have been created by varying the elevations on the site and by manipulating light levels between areas of woodland and openings. At its heart is a large lake with marsh and woodland edge planting schemes.

Thijssepark Amstelveen

No attempt is made here to recreate wild plant communities, but rather by using an interplay of massing and mixing, the different plant species are emphasised and promoted. Coming from England where wild gardening has a bad name for creating a tangled mess of vegetation – good for wildlife but not attractive or accessible – the highly styalised approach to wild plant gardening practiced in Amstelveen appears as a stunning revelation.

Thijssepark Amstelveen

Students of landscape architecture come to Amstelveen from all over the world to study its public parks and green corridors. Those of us living nearby too easily take them for granted. From what I read of Oehme and Van Sweden’s designs for the new Native Plant Garden in New York I suspect that Amstelveen’s lead has been built upon. The American native flora is so varied and exciting that the potential is almost overwhelming to contemplate. I cannot wait to visit New York and see the results.

Some more impressions from last week’s visit:

Thijssepark Amstelveen

Thijssepark Amstelveen

Thijssepark Amstelveen

Thijssepark Amstelveen

Thijssepark Amstelveen

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Spring Snow in Amsterdam

Elms in Amsterdam

 

In 2005 Amsterdam was named as The Elm City of Europe as it has more than 75,000 elm trees, many some 80 to 100 years old, growing along the sides of its canals and throughout the city’s parks. In fact, Amsterdam is one of the most densely wooded cities in the world with some 400,000 trees which can be compared with Paris with just 95,000 and even London with only 500,000.

When the elm trees release their seeds they fill the sky and clothe the ground for a couple of weeks every spring. Looking out my window I can see that the seed fall is just about ready to begin. It may be late this year, but it’s going to be heavy.

This year Amsterdam is celebrating 400 years since the start of building its famous canal system which defines the city centre. The Springsnow festival is just one such cultural events being held: attend lectures, make a cycle tour along the elm route, look at art inspired by and made from elm seeds or read poetry on the theme. It all seems to offer a welcome start to a summer of celebration.

Dutch elm disease is an unfortunate name for the disease that wiped out 25 million elm trees in Britain in the second half of the last century and thereby changing the face of the country forever. The disease did not come from Holland but was identified by research scientists here in 1921. Initially the disease strain was mild, but unfortunately in 1967 an import from North America of Ulmus thomasii introduced a far more virulent form – the rest is history.

Elm trees in Amsterdam

By careful management and replacing losses with disease resistant hybrids it is possible to retain these majastic trees. Amsterdam has a full time tree specialist caring for its elm trees which guarantees that its spring snow is not going to be a onetime event but something to look forward to every year. Here is a short video by Bram van Alphen to let you see what it is all about.

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Gardening starts late in Europe

I am not the only one to be complaining about the late start to the gardening spring in Western Europe this year. Our winter was very long and cold and the garden has seemed to be stuck, awaiting a cue to begin its thing.

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Well, finally, this week it happened, my garden leaped forward. Perennials are jumping out of the ground, bulbs bursting into flower and I have managed to get the last of my new collection of shrubs into the ground. Red foliage is something I am currently interested in as can be seen here with one of the new Acer palmatum cultivars I have planted.

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It was only a week ago that I could not wait any longer and made a visit to Holland’s bulb flower show at the Keukenhof near Amsterdam. I was too early. The crocus had finished and been removed, only hyacinths and daffodils were in flower – and these were surrounded by wide drifts of green tulip foliage with hardly a flower to be seen.

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I will be returning next week when I know that everything will be in flower at once. In my book on tulips I took a great deal of trouble to organise the different cultivars and species into early, mid-season and late flowerers – nature has made a mockery of this this time around.

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I have been carrying out an experiment for two years in my two trial gardens here in Amsterdam to see how many tulips return reliably. There have been no real surprises; the species or varieties close to their wild origins come back reliably for some years. All decline in my garden as I surround them with tall growing perennials that often rob them of the sunshine they need to feed their new bulbs for the following year. But the one group that one never expects to return reliably, but which does, is the Lily-flowered cultivars. Their character is so refined that one expects them to fade away quickly, but many return here year after year.

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One perennial plant to remind you about again is white flowered Pachyphragma. Here it is providing the setting for a few ‘Pink Impression’ tulips. This useful ground covering plant has spread itself by seeding in this corner of my garden over some eight years from the original plant I was given. Read more about it here in an earlier post from my Top Perennials section.

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This is a corner planted with a mixed perennial scheme using epimediums, astilbe and euphorbia which all offer exciting spring foliage. I have just added a plant of Berberis thunbergii ‘Orange Rocket’ on the corner to increase the drama. Even without any spring bulbs this is an interesting scheme that has a very long season of interest and as such is an example of the mixing system I am currently using in my perennial meadow schemes. If you would like to engage with me and develop such schemes for yourself then my eBooks or better still my online lecture course at MyGardenSchool is perhaps where you could begin.

No doubt I will be able to post some pictures of the firework-like display at the Keukenhof following my return visit next week. Regrettably, they will be mostly schemes of massed bulbs but excluding perennials, which is a real pity and such a missed opportunity in my opinion.

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Contemporary Perennial Planting – concepts and practice

Noel Kingsbury BorderThe popularity of perennials in contemporary planting schemes is increasingly linked to the movement towards a more naturalistic style of garden making. The highly structured flower borders of twentieth century European gardens have steadily given way to a looser, more informal planting style where complex mixtures of perennials are planted in wide open drifts in which visitors can loose themselves amidst the soothing atmosphere created by their intermingled forms, textures and colours. Ornamental grasses and perennials that are close to the character of their wild parents have replaced the dominating, often double flowered, clumps of perennials that were once so popular.

Enthusiastic designers repeatedly make reference to the structural and textural qualities perennials can bring to your garden planting schemes, but in truth perennials are weak architecturally and to be effective within a garden’s design they need to be placed within a firm framework.

Traditional herbaceous border

Traditionally, herbaceous borders were created as discrete features; often backed by tall hedges and viewed as a tableau with their plants arranged in serried ranks. The new style of planting which flows out to fill wide garden spaces into which we can enter, run the danger of becoming loose and formless, filled with a tangle of vegetation.

Piet Oudolf border

Large scale naturalistic planting schemes have become popular in many European and North American public parks. Such schemes filling the horizon with wide drifts of mixed perennials are, however, always created within a wider, structured landscape.

Floriade 2012

Most gardens are much smaller than public parks, yet contemporary gardeners are keen to emulate the high profile, naturalistic schemes that are being widely acclaimed in the media. However, no matter what the scale, perennial plantings need to be given structure and focus in order to be effective.

Floriade 2012

On a large scale designers have the opportunity to use an interplay of massing and mixing, coupled with repetition to give their schemes organisation and form. Paths cutting through such schemes together with boundary walls and woody plantings are frequently used to organise such designs.

Mixed Perennial Planting

The course I teach at MyGardenSchool entitled “New Perennial Planting for Today’s Gardens” is intended to resolve the contradictions that seem to arise when naturalistic schemes are to be implemented into domestic scale settings. Their restricted space simple does not allow the use of repeating masses of individual species for dramatic effect.

Michael King perennial meadow

To begin with, I show how by using a restricted pallet of perennials it is possible to develop a strong visual impact and allow this to be repeated across the planting area. Careful selection of bold theme plants is the key to this step, with plants being used that are perfectly suited to the available growing conditions and which together are capable of forming a stable community to form a matrix of vegetation with a long season of garden interest.

Prairie style perennial border designed by Michael King

Identifying suitable theme plants for my perennial meadow planting schemes is not easy which is why I created a series of eBooks giving specific examples in order to get designers started and inspire less experienced gardeners.

Perennial border - Michael King

Theme plants alone are not enough to make a satisfactory perennial meadow as although they make a bold block of vegetation, if on approaching it all that is revealed is the five or so perennials making it up then it will become quickly boring. By adding what I call “complementary plants” to my schemes I aim to achieve three things. Firstly, these plants can extend the season of interest, for example, when spring flowering bulbs are added to a scheme featuring many late season flowering perennials. Secondly, the complementary plants can be added to discrete areas of the whole planting area to create points of focus and contrast; perhaps by being used nearer to a path or adjacent to a sitting area. Finally, the complementary plants can add a counter theme to a design, a contrasting colour and form, or be used to introduce formal patterns that link with other design elements within the surrounding garden.

Floriade 2012

Theme plants and complementary plants work together to create perennial meadows that are visually interesting for as long a season as possible and which are worth viewing from afar and which become more interesting when the are approached and viewed from nearby.

Naturalistic planting design Michael King

Within the scale of an average sized garden, perennial meadows need to be organised into clearly defined planting areas that are surrounded by a network of paths. This allows the planting areas to be entered into, but also is an essential step in placing them firmly within the garden landscape.

Piet Oudolf, Hummelo

Where space allows, a series of planting areas can be created and this opens up more opportunities for introducing variation and visual impact. I often place contrasting schemes into adjacent areas and so introduce variations of height, colour and texture. Ornamental grasses are especially useful in this context with perhaps a block planting of a single species standing across the path form a scheme in which it or a similar cultivar of the same grass is being used as a theme plant.

Perennial meadows by Michael King

These are just some of the tricks that can be used to adapt the drama and excitement of public naturalistic planting schemes for use in small domestic garden settings.

Perennial meadows offer a new way of introducing naturalistic planting into cutting-edge gardens. If you haven’t tried mixing perennials to create this new form of planting for yourself perhaps it is now time to give it a go.

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