Gladiolus byzantinus Gladiolus byzantinus
Gladiolus byzantinus
Gladiolus byzantinus

Gladiolus byzantinus

Spires of magenta trumpets will fill your garden with late spring colour.
Perfect In Pots
Plant In Sunshine
Winter Hardy
Cut Flower
Easy To Grow
RHS Garden Merit
  • Award-winning hardy perennial flowers.
  • Naturalises well, increasing year after year.
  • Spikes of magenta trumpets to fill your garden.
  • Ideal as a cut flower.
  • Supplied as 50 corms ready for planting.
50 bulbs - Item: 600241
Only £8.99
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Currently Unavailable

Product Description

Gladiolus communis byzantinus, also known as the Byzantine gladiolus, is a reliable cottage-garden perennial, with striking sword-shaped leaves. Erect spikes of magenta trumpet flowers are produced from late spring

Easy to grow, plants can be left to naturalise where they will spread freely and produce a mass of gorgeous colour - the perfect way to get larger displays year after year. Plus they won't need staking so really easy to look after!

Perfect to grow as a cut flower, byzantinus can also be dotted about between shrubs and other herbaceous perennials where they add height and a dramatic colour contrast in flower beds and even pots.

Holder of the prestigious RHS Award of Garden Merit, you can be sure that this is a garden-worthy plant sure to perform - giving you years of glorious colour.

We supply 50 corms of good sized corms, 7/8cm circumference, ready to plant now.

What Is Supplied

Item 600241 supplied as:
Supplied as 50 x 7/8cm circumference bulbs, ready for planting now.

Plant Information

Top Tips

Fully hardy, leave bulbs to naturalise.

Care Guide

Planting Advice for your Gladiolus byzantinus:

  • Plant 10 to 15cm (4-6in) deep in fertile, well-drained soil in full sun with a little grit or sharp sand added to improved drainage.
  • Gladioli need plenty of water to flower well, so if you can, dig in well-rotted manure or compost to the soil before planting, which will help retain water.
  • Plant bulbs at twice the depth of the height of the bulb and four times their width apart. e.g. 5cm tall bulbs need to be planted 10cm below the surface of the ground and 20cm apart.
  • Please check the bag for any additional planting instructions.
  • They are fine to plant even if a little green growth is showing, they’ll just need a good watering when you plant them, and then only when the soil is dry.
  • While all the energy that a bulb needs in order to grow is stored in the bulb itself, they will do better if you feed them when in active green growth.
  • Plant in herbaceous borders, in pots, or leave in the ground to naturalise.
  • If planted in pots be sure to water frequently and keep moist.


Aftercare for your byzantinus Gladiolus:

  • Mulch over winter and corms can be left in the ground to naturalise in warmer parts of the UK. If your area is frost-prone, then in colder counties, grow them in a sheltered spot and lift them for the winter when the leaves turn brown.
  • If planted in pots, stop watering at the end of the summer and bring the pots under cover for the winter.
  • Allow the bulb leaves to die down naturally they can give you a long and lovely spring display.
  • Water freely through the summer.
  • If planted in pots be sure to water frequently and keep moist.


Pruning Advice for Gladioli:

  • Cut off the old flower spikes as soon as the bloom period is over (unless you require the seeds)
Planting / Flowering Calendar
Planting Time
Flowering Time
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Fully Grown Plant dimensions (approx)
Plant Dimensions
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Gladiolus byzantinus
Gladiolus byzantinus
50 bulbs
Item: 600241
Only £8.99
Currently Unavailable