Growing Gladiolus

Gladiolus BulbsGladiolus Bulbs
Gladiolus Bulbs

Growing gladiolus bulbs is easy. The make wonderful cutting flowers and are moderate water users, making them welcome additions to a water-thrifty garden. Their tall, narrow growth habit makes them easy to add just about anywhere, for a vertical pop of color. Native to southern Africa, Gladiolus is hardy in zones 8-10, and can be grown as annuals in zones 7 and colder. With a bit of extra care, most of us can enjoy these beautiful flowers for years.

Tips For Growing Gladiolus

Gladiolus looks best planted in dense groups. They propagate by corms, which are similar to bulbs in many ways. They have a bottom (basal plate) that will sprout roots - the other side, where you should see one or more growing points, should be planted up.

Gladiolus bloom for about two weeks, so many gardeners plant sections of Gladiolus at two week intervals to extend the flower season.

Cut flowers as you like, but be mindful not to cut too many leaves, as the leaves feed the new corms.

Light: Plant them in full sun, in the spring, when the soil has begun to warm.

Soil: Well-drained soil is a must, as Glads don’t like soggy feet.

 

Black Beauty GladiolusBlack Beauty Gladiolus
Black Beauty Gladiolus

How To Plant Gladiolus

  1. Following the recommendations on your package, simply dig holes at the suggesting spacing.
  2. Plant the corms 6-7 inches deep and about 6" apart. We recommend using at least 12 corms per planting. They not only look better en masse, but they also support each other as they grow.
  3. Water well and water periodically as growth progresses.

After Season Care For Gladiolus Bulbs (Corms)

In zones 8-10, you can leave Gladiolus bulbs (corms) in the ground for an easy-to-grow flower that returns each season. If you live in zones 8-10, your Gladiolus bulbs will rest for several months before starting their cycle again.

If you are in zones 3-7, you can either treat your Gladiolus as an annual, replanting new corms in the following spring, or you can dig the corms to store for winter.

How To Dig & Store Gladiolus Bulbs (Corms)

It’s easy to do, and you’ll have an unending supply of beautiful flowers for very little effort.

  1. Once the leaves have yellowed and after the first frost, cut the stems to 2 inches.
  2. Wash the soil off and dry for a few days.
  3. Store in a cool place in paper bags or cardboard boxes with 1-2 inches of vermiculite.
  4. Be sure to label your corms so you know what you’ll be planting come spring.
Peacock OrchidPeacock Orchid
Peacock Orchid

Shop Gladiolus

  1. White Prosperity Gladiolus

    Like snowfall in summer, White Prosperity Gladiolus brightens the summer garden with plentiful pure-white flowers on tall stately stalks. Breathtaking 4" flowers growing up to 5 ft. ...

    Learn More
    White Prosperity Gladiolus White Prosperity Gladiolus Gladiolus White Prosperity
    Regular Price $12.99 Sale $11.69
    Per Bag of 15
    You save: 10%
    Like snowfall in summer, White Prosperity Gladiolus brightens the summer garden with plentiful pure-white flowers on tall stately stalks. Breathtaking 4" flowers growing up to 5 ft. tall make White Prosperity an essential addition to the summer garden.
    Learn More
  2. Hardy Gladiolus Nanus Mix, Gladiolus nanus, Hardy Gladiolus

    These smaller growing Gladiolus are cold hardy to zone 5 (when well mulched for winter). The mixture of pink, white and bi-colored flowers are wonderful at the front of your perennia...

    Learn More
    Hardy Gladiolus Mix Hardy Gladiolus Mix Gladiolus nanus Mix
    As low as $14.99 Sale $13.49
    Per Bag of 25
    These smaller growing Gladiolus are cold hardy to zone 5 (when well mulched for winter). The mixture of pink, white and bi-colored flowers are wonderful at the front of your perennial border.
    Learn More
  3. Pink Hardy Gladiolus Charming Beauty, Gladiolus nanus, Hardy Gladiolus

    Hardy Gladiolus Charming Beauty have fantastic bi-colored deep-pink flowers and are perfect to cut for summer bouquets. These Hardy Gladiolus are easy to grow and are winter hardy in...

    Learn More
    Charming Beauty Hardy Gladiolus Charming Beauty Hardy Gladiolus Gladiolus nanus Charming Beauty
    As low as $16.99 Sale $15.29
    Per Bag of 8
    Hardy Gladiolus Charming Beauty have fantastic bi-colored deep-pink flowers and are perfect to cut for summer bouquets. These Hardy Gladiolus are easy to grow and are winter hardy in zones 5-8. Deer resistant.
    Learn More
  4. Purple and White Gladiolus acidanthera, Gladiolus acidanthera or Gladiolus callianthus, Peacock Orchid

    Gladiolus acidanthera is beautiful South African wild flower. This Gladiola blooms in mid-summer with graceful spikes of flowers. They have a strong, sweet fragrance and make wonderf...

    Learn More
    Peacock Orchid Peacock Orchid Gladiolus acindanthera
    Regular Price $12.99 Sale $11.69
    Per Bag of 25
    You save: 10%
    Gladiolus acidanthera is beautiful South African wild flower. This Gladiola blooms in mid-summer with graceful spikes of flowers. They have a strong, sweet fragrance and make wonderful bouquets.
    Learn More
  5. Gladiolus Parrot Mix, Gladiolus, Large Flowering Gladiolus

    Native to South Africa, this hybrid mix of multi-colored beauties with contrasting edges, throats and blended shades is spectacular. Grow your own cut flower bouquets. Cold hardy in ...

    Learn More
    Parrot Gladiolus Mix Parrot Gladiolus Mix Gladiolus Parrot Mix
    Regular Price $15.99 Sale $14.39
    Per Bag of 25
    You save: 10%
    Native to South Africa, this hybrid mix of multi-colored beauties with contrasting edges, throats and blended shades is spectacular. Grow your own cut flower bouquets. Cold hardy in zones 8-10. In colder zones lift the bulbs in fall and store in a cool place over the winter.
    Learn More
  6. Gladiolus Rainbow Mix, Gladiolus, Large Flowering Gladiolus

    Native to South Africa, this hybrid mix has an incredible mix of solid and bi-colored flowers. Grow your own cut flowers with this colorful mix. They mix easily into perennial and an...

    Learn More
    Rainbow Gladiolus Mix Rainbow Gladiolus Mix Gladiolus Rainbow Mix
    Regular Price $27.99 Sale $25.19
    Per Bag of 50
    You save: 10%
    Native to South Africa, this hybrid mix has an incredible mix of solid and bi-colored flowers. Grow your own cut flowers with this colorful mix. They mix easily into perennial and annual flowerbeds.
    Learn More
  7. Gladiolus Mardi Gras Mixture

    Plant the Gladiolus Mardi Gras Mixture and get a spunky mix of summer color with purple, pink and peach-colored blooms. Create gorgeous cut-flower arrangements with this mix. It has ...

    Learn More
    Mardi Gras Gladiolus Mix Mardi Gras Gladiolus Mix Gladiolus Mardi Gras Mix
    Regular Price $13.49 Sale $12.14
    Per Bag of 15
    You save: 10%
    Plant the Gladiolus Mardi Gras Mixture and get a spunky mix of summer color with purple, pink and peach-colored blooms. Create gorgeous cut-flower arrangements with this mix. It has the perfect combination of hues and will be the highlight of your summer garden. 56-60" tall.
    Learn More
  8. Gladiolus Plum Tart (Bulb), Purple Gladiolus, Hot Pink Gladiolus

    Give Gladiolus ‘Plum Tart’ a try and you’ll be glad you did. Dramatic magenta-purple flowers fill the tall stems of this hardy plant and combined with its sword-like foliage yo...

    Learn More
    Plum Tart Gladiolus Plum Tart Gladiolus Gladiolus Plum Tart
    Regular Price $10.99 Sale $9.89
    Per Bag of 15
    You save: 10%

    Give Gladiolus ‘Plum Tart’ a try and you’ll be glad you did. Dramatic magenta-purple flowers fill the tall stems of this hardy plant and combined with its sword-like foliage you have a combo of intense summer color and strong vertical elements, giving your summer garden a fresh chapter. Easy-to-grow, Gladiolus ‘Plum Tart’ is 36-44 inches tall making it perfect for a perennial bed or as a key element in a cutting garden. Hardy in zones 8-11, they can be grown in cooler zones as annuals.

    Learn More