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Home  »  A-Z Plant Index  »  Flowering Bulbs  »  Gladiolus

Gladiolus

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Gladiolus flower
Gladiolus flower

They are are easy to plant and grow, colourful and they are Gladiolus. Tall flowering bulbs that flower in summer these are a long time favourite in Australian gardens.

The tall flower spikes make them great cut flowers and in the garden they do make a great display. So we  commonly call them Gladi’s, Sword Lily or Gladioli, and they were made famous by our own Gladi wielding comedian Barry (Edna Everage) Humphries.

These are a plant with variety, from flower form to colours, hybrids and species they are a worthwhile addition to any sunny garden. The ones we mostly see are the hybrids, however species such as Gladiolus colvillei rubra are worth seeking out.

How to Grow Gladiolus

Gladiolus prefer a warm well drained sunny position. A little blood and bone, some aged cow manure and a complete fertilizer should be worked well into the soil before planting bulbs or corms.

Water during the summer months but not over winter. These are plant that can reach over 1m in height and protection from strong winds is advisable.

The best time to plant gladioli bulbs is from late autumn though to spring.

Red Gladiolus Flower
Red Gladiolus Flower

How to Plant gladiolus bulbs

  1. Choose a sunny position with a well drained soil.
  2. Prepare the soil well by weeding, digging in some compost cow manure and blood and bone.
  3. Planting depth for the bulbs or corms is around 10 cm deep and 10 cm apart.
  4. Water in well with a liquid seaweed fertiliser.
  5. Consider staking Gladioli or using a support ring.
  6. Water regularly during dry periods once signs of growth.

Fertilizing

If you dig in some well rotted compost and aged animal manure (cow or sheep) then you will find that gladioli require just a little extra each year.

We do use regular waterings of a liquid seaweed fertilizer as the plants begin to grow. After the season is over and we lift the corms, we usually dig in a little more compost, this seems to be enough fertilizer for our gladiolus.

Water well during the growing period, a good soaking 1 – 2 times a week until the flowers have died back.

Lifting Bulbs

Many people lift gladiolus bulbs over winter, and for many reasons this is the right thing to do in terms of disease, bulb rot in wet periods and also flower production. However do not let this stop you, they may be left undisturbed for a few years, just top dress with a complete fertilizer after removing old foliage. 

Storage.

If you do lift the bulbs you will need to store them properly. Make sure that the bulbs are clean and dry before storing. Place then on racks in a cool dry position with good airflow.

Gladioli Bulb
GladioluBulb with root and stem structure

Bulb Care.

Although they actually require little care although many gardeners will lift bulbs in autumn to winter and replant spring to prevent bulbs from rotting. This is very important in areas with wet winters and poor draining soils.

Many varieties are tall growing, and with such heavy flowers can tend to fall over in windy conditions, especially if damp.

Choose a spot that is protected from strong winds, and consider ‘plant hoops’ to protect blooms. 

Species Gladiolus.

Not the same great big colorful blooms that we are used to, but some very attractive flowers. Gladiolus nanus ( Queen Wilhelmina Gladiolus ), Gladiolus alatus, Gladiolus flanaganii, Gladiolus geardii, Gladiolus mureliae are a few to look for.

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  • Gladiolus nanus

Gladioli bulbs are available for sale from the following participating nurseries


Vogelvry Bulbs
VOGELVRY BULBS and FLOWERS- Phone (03) 62613153 
P.O. Box 369 New Norfolk TAS 7140
Huge range of Spring and Summer flowering Bulbs 
www.vogelvry.com.au
Garden Express
GARDEN EXPRESS - phone :1300 606 242
470 Monbulk-Silvan Road Monbulk VIC 3793
"Guaranteed mail order flowering bulbs, perennials, roses, trees, landscaping plants, garden accessories and community fundraising Austra lia-wide."
www.gardenexpress.com.au
Perennial plants
PERENNIALLE PLANTS - phone: 0427077798 
52 Rodd St Canowindra NSW 2804
An online nursery specialising in drought and frost tolerant perennials and fragrant, edible and herbs.
www.perennialle.com.au
RAITHBY PLANT NURSERY
RAITHBY PLANT NURSERY - phone: 03 63 262583
P.O. Box 589 Mowbray Heights Tasmania 7248
Mail order: Suppling a range of bulbs and pere nnial plants suitable for pots and troughs. Includes Alliums
www.raithbyplants.com.au

Lambley Nursery

LAMBLEY NURSERY & GARDENS
395 Lesters Rd Ascot VIC 3364 - phone (03) 53434303
Specialising in beautiful perennials & bulbs including new releases from Europe & USA. Many hardy, rare & difficult to find ‘drought hardy’ plants, quality vegetable & flower seeds.
www.lambley.com.au
MISTYDOWNS - Unusual Perennials and Climbing Plants
MISTYDOWNS - Phone 03 534 5 2847
P O Box 398 Creswick Vic 3363 
Retail & Mail Order Specialist Growers of Heritage Roses, Unusual Perennials, Tree & Herbaceous Peonies. Mail order and Nursery Sales.
www.mistydowns.com.au
Tesselaar Bulbs
TESSELAAR BULBS - Phone: 1300 428 527
357 Monbulk Road SILVAN VIC 3795
Guaranteed "garden worthy" bulbs, plants and perennials. Visit the website to browse our large range of daffodils or request the latest free catalogue.
www.tesselaar.net.au

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