Grasses in winter

Miscanthus sinensis 'Ferne Osten'Deciduous grasses – the ones which turn parchment-coloured but remain standing – are a significant feature of many gardens in winter. The pampas grasses have been around the longest and still tend to be the most dominant, by virtue of their size alone. Even when they have lost their initial creamy-whiteness, as long as their plumes remain upright they continue to add interest to the scene. The beginning of this winter though, was too much for all but a few of them, leaving them, as soon as the snow and ice retreated, a pile of broken stems, which is exactly as they have remained ever since in gardens all over the country. I find myself longing to say, please everyone, it won’t take a minute to clear away! – the more onerous task of dealing with the leaves can be left until spring.

Molinias, Miscanthus and Panicums are all beautiful in winter, especially when rimed with frost or back lit by the winter sun. Molinias look lovely up to the end of December, when they promptly collapse, as if at a signal. Nothing could be easier than tidying them away. The Miscanthus, elegant and upright, and Panicums, graceful and fountain-like, carry on looking wonderful for much longer. They were not in the least affected by the severity of the early part of the winter, even the flowers of the Miscanthus remaining in tact, though gossamer fine by now. It would seem a pity, in a spirit of tidiness, to cut these down quite yet. This is a job though, which must be done by the end of March, to avoid the new shoots growing up among last year’s old stems.

Turning the corner?

Viburnum x bodnantense 'Charles Lamont'This may be a trick being played upon us by the weather – never trust our climate! – but the feeling in the air is that there is not going to be a repeat of the drama and extremes of December. We have at least got through January, which was moderate throughout – pretty much what we have been used to in recent years.

There are, nevertheless, plenty of signs remaining of the devastation wrought during those final weeks of the year. Many of us will have lost cherished plants which have survived the past decade or more unscathed. Ceanothus and Cordylines, for example, are likely victims when temperatures dip well below the norm; and even some which got through last winter may have succumbed to this one. However, don’t abandon hope for at least another month. It is surprising how many very dead looking plants can spring up again from the base. Hardy Fuchsias do this every year, after all; and you can’t give up on them until the middle of May at the earliest. And if some things do turn out truly to have given up the ghost, we must be philosophical – new gaps create fresh opportunities!

Some of the plants we rely upon to provide us with flowers through the winter months were stopped in their tracks by those relentless frosts. The scented pink flowers of Viburnum x bodnantense varieties, for example, were thoroughly browned and shrivelled. But these plants don’t give up easily and with buds in reserve to keep them going through to spring, they are back to flowering fit to bust again. The shrubby honeysuckle, Lonicera ‘Winter Beauty’, with its tiny, deliciously scented cream flowers, missed the early frosts all together and has been merrily flowering since the beginning of the year.

Of all the plants which are rash enough to flower during our winter, Witch Hazels have the most frost-hardy flowers. However shrivelled they may appear to be in the morning after a hard night’s frost, they will unfurl as good as new with the slightest hint of warmth in the air. They are putting on as good a show as ever. Meanwhile, snowdrops and aconites, which have seemed hesitant up to now, are suddenly opening all around us; even primroses are peeping out from their greenery and, another sure sign that spring is edging closer, catkins are beginning to burst open on willows and alders.

Beautiful fruit – Callicarpa

Callicarpa“Beautiful fruit” is the literal translation of Callicarpa (from the Greek kalli-beautiful and karpos, fruit). The common name “Beauty Berry” is sometimes used for this distinctive, medium-sized shrub, which comes into its own in the autumn, with the combination of soft pink and yellow autumn colour and clusters of purple berries, a unique colour among shrubs hardy in the British Isles.

Famous offspring of a tiny parent

Narcissus ‘Tête a Tête’Narcissus cyclamineus is a small, exquisite species, native to North West Spain and Portugal. It is slow to increase and therefore scarce, expensive and rarely seen outside specialist collections. It is however, the parent of many popular varieties, to which it has given its most distinctive and endearing feature, swept back petals, like those of a Cyclamen.

Its most famous offspring, ‘Tête a Tête’, is perhaps the best known and most widely grown Narcissus in history-possibly the single bulb of which more is produced than any other on the planet. Its popularity is thoroughly deserved. It is easy, hardy, long-lived and prolific and opens joyfully early, with the first breath of spring, in late February or early March. With its short stature it is perfect for containers as well as rock gardens and borders and will happily naturalise in grass. It has much of the charm of its wild parent, but has a lot more vigour.

By a curious twist of fate, when you think of the skill, knowledge, time, patience and dogged persistence that have gone into the breeding of daffodils and Narcissi over several generations, the most popular one of all time arose by accident. Admittedly it occurred in the garden of a distinguished breeder of Narcissi, Alec Gray, who could see when he was onto a good thing. He spotted a seed pod on an uncommon hybrid, ‘Cyclataz’, which rarely sets seed. In that pod were three seeds. One became ‘Tête a Tête’ and the other two ‘Jumblie’ and ‘Quince’, each of which he judged to be worth putting into cultivation. The pollen parent he concluded had to be N.cyclamineus.Though nothing like as well-known as their sibling seedling, both the others are good, distinct varieties which have stood the test of time. ‘Jumblie’ is similar in colour and stature to ‘Tête a Tête’, with more steeply swept back petals, opening a little later. Both have been awarded the AGM (Award of Garden Merit), the highest accolade bestowed by the Royal Horticultural Society. ‘Quince’ varies mainly in its colour, which is soft, creamy yellow. When you think that breeders usually discard a high percentage of hundreds of seedlings from deliberate crosses, this really is an extraordinary story.

There are many other brilliant cyclamineus hybrids. ‘February Gold’ (actually usually March flowering, in my experience) is the tallest (10-12”/25-30cm) and most vigorous of the better known ones, with a bright golden trumpet and paler petals. It is easy and reliable, ideal for naturalising in grass and always makes a great impact.

‘Jetfire’ is the boldest in colouring, wonderfully bright and cheerful, with a rich orange trumpet contrasting with yellow petals. ‘Jack Snipe’ is a personal favourite, with a lemon-yellow trumpet and milk-white petals. ‘Jenny’ I consider one of the loveliest of all Narcissi, opening with a slightly paler lemon trumpet than Jack Snipe’s, which gradually fades through cream to white, so that the whole flower, which lasts for weeks on end, becomes white.

Now is the time to plant bulbs of these delightful varieties, if you haven’t already done so – no need to panic though – they are remarkably resilient and will come up almost however late you are! If you’re planting them in grass, remember the trick of throwing them up in the air and planting them where they fall – it gives them the natural look you are aiming at and makes placing them very easy!

Agapanthus ‘Midnight Star’

Agapanthus ‘Midnight Star’Every so often, a plant joins my category of “top plants”. This summer it has been the turn of Agapanthus ‘Midnight Star’.

Agapanthus, with their round heads of blue or white flowers, are such valuable plants for the second half of summer, providing contrast of flower form and toning in with all kinds of colour scheme, hot or cool. Lovely as the white-flowered varieties are, blue is the colour we rely upon them for.

The fact that there are dozens of different blue-flowered varieties to choose from may be baffling to all but committed Agapanthophiles! So many of them appear to vary from one another in rather subtle details, apart from such obvious distinctions as height and shades of blue, it is hard to know which ones to go for.

We have grown ‘Midnight Star’ at Bridgemere for many years and I have always considered it outstanding in terms of reliable hardiness, the depth of its colour and sheer floriferousness. But this year, when so many have failed altogether, it seems to me to have excelled itself, with two big clumps crowded with those gorgeous blue flowers being the star attraction in our gardens this month. Its spectacular performance this summer really confirms a long held view that this is a blue Agapanthus you cannot go wrong with. Meanwhile, I have my eye on another, called ‘Jack’s Blue’, with longer, more trumpet-shaped individual flowers, of a good, rich, deep blue on taller (5ft) stems. There is always room for another good plant!

Agapanthus are South African plants and will not tolerate cold, damp soil in winter, so good drainage is essential. Just to be awkward, however, they will not thrive in soil which becomes too dry in summer either, preferring it on the moist side: so well-drained soil with a good humus content is what is required, and full sun, of course. They can create a magnificent display in large containers, which you need to keep under protection in the winter.

Note for flower arrangers, or just those who like putting flowers in vases: Agapanthus make excellent cut flowers, which will last at least a week in water. For a simple arrangement, they combine delightfully with the metallic-blue, prickly round heads of Echinops ‘Veitch’s Blue’, another brilliant cut flower.

Proud To Be Pink

Monarda 'Pink Lace'There are so many different shades of pink. At one extreme there are the subtle, delicate, pale pinks, which blend perfectly into pastel schemes, with soft blues, mauves and silver; at the other are the vibrant, bright, assertive pinks, which create dashing and explosive contrasts with orange, scarlet, purple and golden yellow flowers in “hot” borders.

Some of the perennials we have recently added to our range at Bridgemere which I find myself especially drawn to and impressed by are very much this “not for the faint hearted” kind of pink.

Monarda ‘Pink Lace’ was my top new plant last year and is equally wonderful this summer. The typical, slightly fantastical-looking Bergamot flowers with the topknot of slender, curved petals – they would fit nicely on the head of some tropical bird or fashionable lady at the Ascot races – are a clear, bright, glowing, verging on shocking pink. There are plenty of these open at any one time, but also lots of buds to follow at different stages, indicating a long flowering season ahead; and they have already been going strong from the beginning of this month. They are held on dark stems which show them off well, against a background of fresh green foliage, which gives off that lovely bergamot scent. It is more compact than most Monarda’s, growing around 2 feet high. I love it – and so, I’m pleased to say, do lots of other people! Hooray! Monardas are perfectly hardy and easy to grow, as long as they are in the right kind of soil, which needs to be on the moist side, though reasonably well-drained – so with a good humus content which will prevent it from drying out in summer.

Though not quite as sensitive to dryness, much the same can be said of the conditions favoured by Veronica’s, of which there are also some very good new ones about (‘Purplelicious’ is a super purple-flowered one we have had for the last two or three years). ‘First Love’, which is brand new this year, is unlike any Veronica I have seen before, with tight clusters of flowers, rather shorter than those of most herbaceous Veronica’s, slightly curved at the tip, and a really luminous pink, deeper than that of the Monarda. It too looks as if it will have a longer than average flowering season, with lots of buds to keep it going. It will be encouraged in this by the occasional light dead-heading. It is neat and compact, with good, strong stems, growing to around 18 inches, and healthy, glossy, deep green leaves. Another winner in my book!

Astilbe ‘Alive and Kicking’ is one of a series of new, vigorous, robust varieties, with big, feathery heads of brilliant, rose-pink flowers, again with that luminous quality, shining out from a distance of many yards. It has bold, handsome, ferny foliage. It grows about 3 feet high, so makes quite an impact. Astilbes also like it moist, or even boggy, but will do perfectly well in ordinary soil, as long as it doesn’t get too dry.

Chocolate sensation: Pieris Katsura

Pieris KatsuraI occasionally find myself stopped in my tracks by a plant which I thought I had known for years, but suddenly see in a new light, as if for the first time. This happened to me the other day when I spotted a bryony (a rather uncommon handsome but rampageous native plant) scrambling over a shrub in one of our borders. As I disentangled the bryony, I realised that the shrub I was liberating from its embrace, normally a dull green, had transformed itself into a solid mound of gorgeous, glossy, chocolate-purple. This was Pieris Katsura in full, sumptuous new growth. I have seen this over many Springs, but had somehow failed to register how wonderful it is. It must have been the bryony that did it!

Colourful new growth is, of course, one of the main features of Pieris, brilliant red in Forest Flame, the most famous of them all. Forest Flame, though, put on its dazzling performance much earlier; and though there will be further flushes throughout summer and autumn, has begun to fade. Katsura sensationally extends this season into late May and early June.

Its other outstanding features are clusters of red flower buds in winter, opening to showy pink and white flowers in April. It is compact, forming a dense plant 3-4ft high in 10 years, thriving in humus-rich, lime-free soil, in sun or light shade. Like all Pieris, it makes an excellent container plant, in ericaceous (lime-free) compost.

Salvia Caradonna

Salvia ‘Caradonna’I didn’t make it to Chelsea this year, but was pleased to hear that one of the stars of the Telegraph’s Best in Show award winning garden was one of my top perennials, Salvia ‘Caradonna’. This plant was a hit with us at Bridgemere as soon as it appeared a few years ago. What sets it apart from the many blue perennial Salvias available nowadays is its almost black, slender, upright stems, clad with deep green leaves, bearing dark purple flowers for weeks on end. The effect is stylish, elegant and classy.

It is one of those plants which would fit into and add depth and tone to almost any type of planting scheme. My first impulse would be to put it with equally strong, brighter coloured plants like yellow Achilleas, orange Geums or red Potentillas like Flamenco or Arc en Ciel; but it would go equally well with soft pink Sidalcea ‘Elsie Heugh’ and silvery Artemisia ‘Valerie Finnis’. Hot or cool, it will strike just the right note. So well chosen Andy Sturgeon; thanks to you this first class plant will become better known and more widely circulated. It is worth mentioning that, like most Salvias, it is popular with bees and butterflies too, so will help to boost your wildlife population.

Salvia Caradonna is hardy and easily grown in any well-drained, reasonably fertile (not too rich) soil, in a warm, sunny site.

Bleeding Hearts and Lovely Lockets

King of HeartsBleeding Heart, Dicentra spectabilis, with its brilliant rosy-pink, heart-shaped flowers and handsome foliage is one of the sensations of the spring garden, and one of the best loved of all perennials. It is equalled in beauty by the white-flowered form, ‘Alba’, once a rare plant, now readily available. They are, however, very much spring flowering plants, retiring into the background when the summer comes. Happily, there are smaller Dicentra’s, especially the newer varieties among them, which continue right through the summer. Their flowers, in scale with the size of the plant, are smaller and daintier than those of the true Bleeding Heart, held over neat mounds of lacy, blue-green foliage. ‘King of Hearts’, with rose-pink lockets, the first of this series to appear, has proved to be a top class plant, recognised as such by the Royal Horticultural Society who have bestowed the coveted Award of Garden Merit on it.

More recently have arrived ‘Candy Hearts’, a deeper shade of rose and equally continuous flowering; and ‘Burning Hearts’, with intense silvery-blue leaves and deep red flowers – it is well-named! It is reputed to be grape-scented, though I have yet to catch this! These are real gems, easily grown in ordinary, well-drained, not too dry garden soil, in sun or light shade, ideal for the front of a border or in the light shade of a Japanese Maple.

Classy and easy newcomer – Sinocalycanthus Hartlage Wine

Sinocalycanthus Hartlage WineWe first had Sinocalycanthus Hartlage Wine at Bridgemere three years ago, when it was very new (and very expensive!). It was an obviously different and exciting plant, with those gorgeous, spherical maroon buds opening to subtle dusky pink flowers, with water lily-like centres of petals tipped white. The leaves too are good – large, glossy and healthy. We potted a plant up to make a display plant for the Tatton Park Show where it caused a sensation. Though its main flowering period is late spring to early summer, it always seems to produce a second “flush” in the middle of July – perfect timing for Tatton!

However, I always believe in reserving judgement about new plants until I know how they perform. How was something so exotic looking going fare in our climate? Was it going to “do” in average gardens or would it need lots of care and the sort of perfect conditions few of us have in our gardens?

It is a hybrid, raised in the US, between the American Calycanthus or Allspice and the much rarer more recently introduced Chinese Sinocalycanthus sinensis. It gets its rich flower colour from the American plant and its larger leaves and more intricate flower form from the Chinese one. The Allspice appears to do well in British gardens. The Chinese species, I have to say, I find temperamental and have yet to see looking really happy here. This is one for those seekers of rare plants who enjoys a challenge. Which parent was Hartlage Wine going to take after?

Joyfully, it has proved vigorous, hardy and easy during the intervening years. I have had several good enthusiastic reports, most recently from the owner of the superb garden at Wollerton Old Hall in Shropshire, who tells me that his plant, which he bought three years ago, has sailed through this last cold winter completely unscathed and has over fifty buds waiting to burst open. So – hurrah! It looks as if this beautiful and unusual shrub is going to be here to stay. Give it good, well-drained, humusy soil, in a reasonably cosy, sheltered site, and you will have something to wow your keenest gardening friends with!

About the author

Keith Atkey

Keith Atkey has worked at Bridgemere Nursery & Garden World, one of the UK’s largest garden centres, for 29 years, and is their resident horticultural expert.

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