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Getting the best from your lupins

Growing lupins must be good for your health – horticulturist George Russell started breeding them during his 50s and lived on to the ripe old age of 96 – so why not have a go?

Lupin seed has been used as a form of protein as long ago as the Roman times. They ate the roasted seeds of white lupins (Lupinus albus) and also made them into coffee. The newer garden hybrids available today are highly poisonous and should never be eaten.

White lupin flour is still used as a food source in many countries. However, you’re far more likely to find these gorgeous summer-flowering perennials in your garden borders than in your pantry. They’re easy to grow and will tolerate most conditions.

Growing lupins

Cultivation

When growing lupins from seed, each seedling will be unique in colour, form and habit. You can call it what you like because no one else will have it! For those working to a definite colour scheme, it is best to use vegetatively propagated plants of the very best lupins available, to know what you will get.

Good cultivars are best renewed by taking cuttings. Seedlings are unlikely to come true, and will often revert to a blue or purplish colour. So, if you have ever wondered how lupins mysteriously change colour, this may be the answer. The parent plant has expired and the stronger seedlings have become dominant.

Flowering time

With the earliest of our new lupin varieties forming flower

buds by mid-April, the first flowers start to open at the base of the stem by mid-May. A week later the whole flower stem is a mass of plump flowers opened out like the wings of a butterfly.

Lupinus ‘Manhattan Lights’
Lupinus ‘Polar Princess’

A succession of blooms

LupinusMasterpiece’, L.Red Rum’ and L. ‘Terracotta’ are among the first out, quickly followed by L.Blossom’, L.Persian Slipper’, L. ‘Manhattan Lights’, L.Desert Sun’ and L.Salmon Star’. Last to arrive on the scene are L.Polar Princess’, L.Tequila Flame’, L.Gladiator’ and L.Towering Inferno’.

Lupinus ‘Red Rum’
Display including Lupinus ‘Salmon Star’

Soil type

The latin name for lupin, Lupinus, is derived from lupus meaning wolf or destroyer. As lupins will grow in poor soil, a myth has arisen around them that they may destroy the soil’s fertility. This is not true. Lupins make their own nitrogen, enabling them to grow in poorer soils but not chalk. Ideally a well-drained, neutral to slightly acidic soil will ensure successful growth, although most soils are fine.

Position

Just like us, lupins love the sun and their flower spikes will follow its movement east to west on a bright day. However, we also have lupins

growing on a north-facing site, which thrive just as happily. Full sun is said to improve the colour of the flower spikes.
Top tip

Lupins will tolerate pretty much any climate. They are very hardy herbaceous perennials withstanding frosts to at least -15°C. In very wet conditions, lupins may succumb to crown rot, but if well established will survive most conditions.

Feeding and weeding

Caring for your lupins is easy. Buy them from a good source, keep

hoeing to minimise weeds and keep moisture in the soil. Feed with a little bonemeal or seaweed before and during the growing season. Treat them well and you will be rewarded with great spires in every colour, accompanied by the humming of bumble bees during glorious summer days.

How to use your lupins

As a statement plant in a border, few plants can match the tall, colourful flower spires of lupins. They make excellent pot plants too. Put one or two on your patio and enjoy their heavenly morning and evening scent reminiscent of peppery moss.

Lupin flower spires also look fantastic as a cut flower display in a vase. Their perfume is distinct and noticeable indoors. Strip the foliage and side shoots from the main stem, plunge into water and enjoy a big, colourful display for a good week.

As lupins flower primarily in the month of June they coincide with a popular time for couples tying the knot. If you want to be original, take some beautiful lupin florets as confetti – strip the blooms just before you set off.


Westcountry Nurseries

Westcountry Nurseries website | 01237 431111

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