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Still hope for the summer

MIDSUMMER’S day is hardly a memory and already the mood of the garden has changed.

The garden is uncertain now, layered with ambivalence and suggestion, carrying something of both summer and early autumn in its strange chemistry.

Plants are growing heavy due no doubt to the incessant ran and the luminous quality of delicate blooms and foliage is taking on a faded grandeur and harder tone.

In particular I notice the deterioration on a large planting of cosmos, their diaphanous petals prematurely bleaching and fading like a butterfly’s wings in late September.

However, while many plants in the treasure-chest of ornamental gardens may be objecting to the poor conditions we must remain hopeful. Remember there are still three months (and more) of potential colour and scent.

So let me introduce you to a beautiful thing in bloom as I write the blue and white campanula known and sold as ‘persicifolia’, or peach-leaved bellflower. Rain suits them admirably.

These are of the thin-leaved variety whose slender stems are set with open cup-shaped flowers in shades of blue and white to knee height. Totally hardy, these reliable perennials can be sourced as mature plants this month at garden centres.

Their roots will fit in anywhere, even among crazy paving stones, beside a path, in the border with phlox and veronica, or mixed through white watsonias and bridal gladioli.

In a wet year like this, the peach-leafed bellflower will perform positively for it dislikes intensely ground which dries prematurely.

Among the named varieties you should look for and choose are plain ‘alba’ a magnificent and lovely white, worth having in any situation or ‘telham beauty’ with its larger blooms in a pretty milky blue colouring. When this latter form opens to warm sunshine the plant’s flared ends look as if they had been dipped into watery blue ink. Being single-flowered, ‘alba’ and ‘telham beauty’ will stand handsomely upright without the need for staking.

I must admit to a little staking for the garden is high and exposed to winds.

The double-flowered forms boast big blue waxy bells along their stems.

Like many doubles in the plant world these are sterile and lacking in the wherewithal to make seed last longer than the singles. Still, it is to the singles that I look for sheer perfection in colour and texture. Campanula persicifolia will be found good mixers, not only among themselves but with their neighbours in the border, in or out of direct sunlight. In fact, they can sometimes welcome partially shaded positions where their glowing hues will be found at their most intense, particularly telling at dusk.

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