Allium Guide: When and How to Plant Them

Alliums are plants of exquisite beauty that deserve a place in perennial gardens. Easy to grow and undemanding, these ornamental bulbs come in a diverse range of colour, height and bloom times, to give you beautiful blooms from spring all the way through till summer.

Throughout this Allium blog, we will guide you through our most popular varieties, planting partners, a full planting guide and even video planting tutorials to get you ready for your autumn bulb planting.

Top Varieties

Allium Graceful Beauty

A striking new variety. This elegant Allium will dazzle in the summer garden with their white and pink flushed flowers. Easy to grow and compact, this bloomer will dazzle at the front of the border. Also they are perfect for attracting wildlife!

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Allium Drumsticks

A lovely addition to the border. Add interest and movement to the late-spring garden with these unique and vibrant egg-shaped flower heads.  As well as being long lasting and pollinator-friendly, these Alliums make beautiful cut flowers!

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Allium Gladiator

An RHS Garden Merit Award-Winner. Allium Gladiator showcases dozens of small star-shaped purple blooms which are long lasting and naturalise easily for years of pleasure. Spectacular in large, sweeping drifts.

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 Allium Globemaster

Boasting massive spherical violet heads, this award-winning Allium is a great tall addition to beds and borders. This showstopper naturalises easily and they are perfect for bringing butterflies fluttering to the garden.

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Alliums look beautiful alongside…

Forming a succulent mat of foliage around the base, then springing into flower some time after the Alliums have faded. Click here to view our Sedum Range.

Partner the taller Allium varieties alongside delphiniums for a border filled with architectural beauty and height. Click here to view our Delphinium Range.

Create a border rich in colour and shapes. Poppies and Alliums both excel in the garden as elegant vertical accents with architectural interest. Click here to view our Poppy Range.

Planting Guide

Planting time: September – December 📆

Location: Full Sun/Partial Shade ☀

Flowering Time: Late-Spring-July 🌸

Soil Type: Fertile, well-drained soil 🏡

For ground planting:

  1. Remove any weeds before planting.
  2. Plant at 3-4 times the depth of the bulb and approx 10cm-15cm apart. Position the bulbs with the pointed end facing upwards.
  3. Fill in the holes and tread down lightly.
  4. Feed regularly in poor soils.
  5. After flowering, remove the leaves when they have withered.

For container planting:

  1. Make sure to use a deep and fairly large pot for large Allium bulbs.
  2. Use a good-quality potting compost.
  3. Plant the bulbs three times deeper than the height of the bulb and as far apart as you can.
  4. Water sufficiently after planting.
  5. For frost protection, use bubble wrap or garden fleece.

Tutorials

How to Plant Allium Superglobe: Summer Garden Guide
How to Plant Allium Superglobe: Summer Garden Guide
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Bonfire Night in the Garden

It’s that time of the year again, Bonfire Night! As tradition on November 5th, we light sparklers, fireworks, bonfires and eat candy apples and treacle toffee for the anniversary of an attempt to blow up the Houses of Parliament, known as the Gunpowder Plot.
Since it’s a common fact that the vast majority of firework bursts and effects are named after flowers/plants/trees. There are for example Chrysanthemum, dahlia, willow, palm and peony bursts. In fact, several firework arrangements are known as bouquets. So, if you don’t want to head out to the local park to see the community fireworks display, you can lay out in your garden and just look at nature’s version. The colors are just as spectacular, except it’s a lot quieter.

10 Explosive Blooms to Light Up Your Night

Allium Fireworks

Could these Alliums have a more apt name? This stunning firework collection consists of Pulchellum (reddish violet), Pulchellum Album (white) and Flavum (yellow). These beautiful plants flower in Summer for an explosion of colour in any garden display.

Agapanthus Mixed

 

 

 

 

 

 

 

 

 

 

Agapanthus, fondly known as the African Lily, are bold hardy perennial plants which are superb for containers or borders. The plants have dark green foliage and will produce vibrant white or blue flowers throughout the summer time.

Allium Schubertii

 

 

 

 

 

 

 

 

 

 

A real firecracker, the Allium Schubertii. Splayed tendrils in pinky-lilac burst from a compact cluster of star shaped flowers. The flowers are produced at the end of May to early June. These make excellent cut flowers and can be dried and used indoors for a unique Winter display.

Asters Alpinus Mixed

 

 

 

 

 

 

 

 

 

 

The cheerful ornamental flowers are daisy-shaped with bright yellow centers surrounded by petals in a burst of colours from pinks, blues, violets and creamy whites. The leaves are narrow and dark green. The heavy cluster of flowers will produce an ever increasing mass of colour every year from August to well into October.

Monarda Mixed

 

 

 

 

 

 

 

 

 

 

The striking Monarda plant comes in a great mixture of colours. They are also know as the Bee Balm Plant. Their spikey blooms resemble the loud, explosive bangs of fireworks, and will flower from June to September, with aromatic leaves. They are a striking and useful addition to the garden, thriving in shade or semi-shade where other perennials struggle.

Euphorbia Bonfire

 

 

 

 

 

 

 

 

 

 

The most amazing Euphorbia ever with foliage that turns from green/purple to burgundy in summer, then again changes to a bright red in late summer. In late spring it will produce large yellow flowers for many weeks. The fiery colours and bursting foliage would earn a warm welcome to any garden.

Pieris Forest Flame

 

 

 

 

 

 

 

 

 

 

This evergreen shrub produces brilliant flamed red young shoots in spring and white ‘Lily of the Valley’ flowers in late spring. The foliage mirrors the flowers, bright red in the spring, maturing to pink and cream and finally green. Holds the Royal Horticultural Society’s Award of Garden Merit for its reliable performance, stability of colour and form, and good resistance to pests and diseases.

Salix caprea pendula

 

 

 

 

 

 

 

 

 

 

The lovely branches of the Salix caprea, or pussy or goat willow as its commonly known, can provide you garden with all year round interest. Stiff, arching brightly coloured shoots form a mound or ‘mophead’ shape in winter. In spring come long silver fuzzy catkins that open to soft silky flowers with yellow anthers, before the gracefully hanging lush foliage appears.

 

 

 

 

 

 

 

 

 

Stunning red pincushion flowers on greenish white filaments surrounded by a rosette of red bracts flushed deep purple at the tips. Strikingly beautiful and extremely photogenic, these are a great blast of colour in any garden bed or border, as well as a must have addition to any summer bouquet.

Aquilegia Barlow Mixed

 

 

 

 

 

 

 

 

 

Striking new double Aquilegia varieties. These showy blooms are perpetual flowering from May to July and look great planted en-masse in a border, the dainty Dahlia-like blooms nodding above lacy fern like foliage. Remove the stems when the flowering time is over and the foliage will remain attractive for a spectacular display right through till the winter.

Bonfire Night Garden Tips

 

 

 

 

 

 

Safety

  • Consider wind direction and the way the smoke will drift once lit.
  • Build it on open ground away from buildings and other flammable items.
  • Keep windows shut so that the smoke does not drift into your home.
  • Have a hose pipe or water supply ready should it get out of control to dampen it down or extinguish the flames.
  • Keep the bonfire small.
  • If you have been building your bonfire for sometime, check that animals have not taken shelter under it before lighting.
  • Use the wood ashes for fertiliser on the garden flower beds.

Tips

  • Bonfire Material Waste Disposal

These seasons celebrations are the perfect time to dispose of garden waste lying around. Bonfires make the perfect disposal unit for dry, woody material infected by disease like canker and fire blight. Be sure to conduct when weather is calm for smoke safety.

  • Garden Protection

Be sure to prepare all bonfires away from beneath overhanging trees as the hot air is damaging to venerable buds and tree leaves and will cause large dead areas in the following year.

Have a great bonfire night!