Gladiolus of Byzantium - to plant, maintain, divide

Gladiolus of Byzantium - to plant, maintain, divide

Byzantine gladiolus, an elegant gladiolus

Byzantine gladioli are part of the large family of bulbous plants, more exactly cormous, like other gladioli or Abyssinian gladioli. It is distinguished by a beautiful size, 0.60m in height, large and magnificent flowers of 8 cm along the stems, with acid colors, reds, pinks, purples. In addition to the beds of the ornamental garden, the gladioli of Byzantium have their place in the bouquetier garden, to ensure beautiful bouquets at home. In fact, cut flowers hold up perfectly well in vase life. The flowers appear in June and will brighten up your flower beds with their color throughout the summer. This Byzantine gladiolus is easily naturalized in the garden to form larger and larger clumps from year to year in an explosion of flowers.

Botanical name:

Gladiolus communis byzanthus

Type of plant

Family : Iridaceae, iridaceae
Cycle: Perennial
Hardiness: Rustic
Foliage : Obsolete
Exposure : Sun and partial shade
• Flowering: july to september
Ground : Humiferous, deep and very drained
Harbor : erect stem
Rooting: Bulb (more precisely corm)
Origin: Mediterranean (Greece


Cold resistance: -20 ° C
Flowering : June to September
Interview : easy
Height: up to 0.6 m
Toxicity: no

When to plant Byzantine gladiolus bulbs?

• Plant the corms from April until May-June.
• The corms of the hardy Byzantine gladiolus can also be planted in autumn without fear.

How to plant gladiolus bulbs?

Prepare the ground:

• Loosen the soil, on a spade height, about 25 cm deep.
• Amend the soil with compost and planting potting soil.
• Add sand to improve the draining power. The Byzantine gladiolus can be sensitive to stagnant water.

Planting Byzantine gladiolus corms:

• Prepare shallow holes, about 10 cm, this is the right depth for the gladiolus corms.
• Place the bulbs (corms) stem upwards.
• Allow a planting distance of 15 to 20 cm between each corm to leave space for the gladioli.
• Cover with the mixture.
• Tamp.
• Water.

Gardener's info:

• Gladiolus does not require watering outside of periods of drought.

Can we multiply the Byzantine gladiolus?

Yes, by bulb division.

When to divide Byzantine gladiolus bulbs?

This operation is possible in two periods, every 2/3 years:
• in autumn, after the leaves have turned yellow.
• In spring

How to divide the corms (bulbs)?

• Once the leaves have turned yellow, in autumn
• Tear corms (bulbs) out of the ground with a spade fork.
• As they develop, the corms will have produced growths all around, a sort of bulbils, which you can take.
• This can also be done in the spring, ie when planting.

Transplanting bulbils

• Prepare the ground as seen previously.
• Plant the bulbils at a depth of 5 cm.
• Locate the place well. For example, you can group the bulbils in the same sunny area of ​​the garden.
• The bulb will continue to develop, but it may not give a flower in the first year.

Byzantine gladioli flowering period:

• This variety of gladiolus flowers throughout the summer from June-July to September.


• Watering: in case of drought.
• In October : Once the leaves have turned yellow, cut them flush with the ground.

Some varieties of Byzantium gladioli:

There is only one variety of Byzantine gladiolus

Agrees with

• Plant gladioli with grasses, nepetas, lavender stems

With or without a garden ...

In the garden : in perennial beds, in the flower garden or in the vegetable garden.
Without garden: Drop…

We recap

• Cycle: perennial
• Hardiness: Hardy plant (-20 ° C)
• Foliage: Lapsed
• Flowering: July to September.
• Color : Red and purplish flowers
• Type of soil: deep, humus-bearing and very drained soil.
• Plantation: Spring and fall
• Interview : Cut the leaves in the fall after they turn yellow.
• Use : perennial, border, in large pot, in planter

Quick sheet:

Gladiolus maintenance

This bulbous flower prefers hot places because otherwise it does not bloom.

  • So choose a location in full sun.
  • Water in hot weather or prolonged drought
  • Remove faded flowers as you go.

Its flowers are particularly pretty, which makes it the featured cut flowers.

Gladioli will also be very beautiful plants of solid or border when planted in small groups.

You can also grow them online for cut flower production and bouquets.

Cut the gladiolus flowers:

When using gladiolus in a bouquet, the stems bearing the flowers can be cut as long as a few leaves are left on the stem.

If the stem is cut too short, the gladiolus may not bloom the following year.

  • When cutting, take the opportunity to add fertilizer to make the bulb bigger and improve flowering the following year.
  • Wait until the leaves are completely wilted before cutting them or tearing off the bulbs.

What maintenance for the crocosmia?


If there is one element to watch out for, it is the condition of the soil. Indeed, the Montbrétia will not live well in dry land: it must stay cool. This is why setting up a mulch is a good compromise in order to keep a certain freshness. Watering is therefore an important point, especially on sunny days.


During this period, a contribution of special bulb fertilizer will be beneficial.

Crocosmia size

The size of a crocosmia comes down to cut stems in poor condition to boost flowering and remove faded flowers. Wait until its foliage turns yellow before cutting it: this will help your plant to stock up for the next flowering.

Winter protection

Although the plant is hardy, a wintering veil will be necessary in cold regions. The best way to ensure the survival of young tubers is to bring them in during the winter. This will prevent them from the risk of freezing.

Other less stiff glaiëuls

If you don't like the steep port of gladioli, opt instead for their wilder-looking cousins:

  • Gladiolus carneus (white) and Byzantine gladiolus (Byzantinus, pink) both blooming in June-July,
  • The Abyssinian gladiolus, late (late summer) but fragile beauty
  • Brightly colored Crocosmias all summer long
  • The Kaffir lily (Schizosytilis), pink or red in autumn.
On the same topic:

Video: How to grow Gladiolus. Gladioli in UK and USDA 8: easy to grow, colourful and great for pollinators