Gardening: Wild wonders

BLUE HEAVEN: Bluebells are seen at their best in an English woodland.

Some plants are meant for the wild; others are happy and at home in a cultivated garden. May provides the perfect example – the bluebell.

A few years ago, bluebells were making the headlines for all the wrong reasons. The native English plant was under threat from an invader – the Spanish.

Big names in the world of horticulture sprang to the defence of the beleaguered variety, fearing that it was going to be forced out by the more vigorous foreign upstart.

Then it all went quiet; until the following May, when, just like a woodland filled with emerging bluebells, the story sprang up again – basically, don’t plant Spanish bluebells – British are best.

But why anyone would want to  plant bluebells in their garden is a mystery.

Unless they have an area of deciduous woodland, and are happy to let the bulbs naturalise and spread, then there are many other bulbs far more suitable for the garden.

English bluebells (Hyacinthoides) are flowers of the wild, of those deciduous woodland, where they bloom before the canopy of leaves shuts out the light from the forest floor.

They grow and spread with amazing speed, and they have become a familiar and much-loved sight in late April and early May.

The Spanish bluebell (Endymion) can tolerate more light than its English counterpart – hence, its spread is greater.

But once you have planted bluebells (be they English or Spanish) you will have a devil of a job removing them.

No matter how deep you dig to evict them, there will always be one or two bulbs left to re-start the colony.

The recurring fear is that anyone who does want to plant bluebells may plant the Spanish instead of the English.

But if you buy from a reputable source, and check the Latin name of what you’re buying, there is no chance of mistaking one for the other.

Alternatively, plant squills (Scilla). Delicate, but diverse, these bulbs  range from miniatures which will do the rockery proud in February; S sibirica reaches six inches in height and  produces violet blooms between March and April, but there are also white and  pink forms.

For a really early show, bulbs can be planted in pots indoors.

Outdoors, overcrowded clumps  should be lifted and divided in early September and replanted immediately.