Traderhorn Gladiolus

Gladiolus Traderhorn is a brilliant scarlet gladiolus, with crisp white contrasting centers and tall, straight flower spires. Traderhorn is tall and stately, with up to two dozen 4-5" blooms on each stem. A garden favorite, these large, fire engine-red flowers with white throats will make a dramatic cut flower.
Zones8 - 10
Advantages
Easy To Grow
Attract Hummingbirds
Deer Resistant
Good For Cut Flowers
Good For Containers
Extended Bloom Time (more than 4 weeks)
Light Requirements
Full Sun
Mature Plant Size48-56" tall
Bulb Spacing4 bulbs per sq. ft.
Bloom TimeMid summer until frost
ShippingNo longer available this season. Learn More…
SizeBag of 15
SKUHC008703

USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

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Product is Out of Stock
Out of stock
SKU
HC008703
Details
Gladiolus Traderhorn is a brilliant scarlet gladiolus, with crisp white contrasting centers and tall, and tall, straight flower spires. Traderhorn is tall and stately, with up to two dozen 4-5" blooms on each stem. A garden favorite, these large, fire engine-red flowers with white throats will make a dramatic cut flower. Plant in spring, in groups of six or more. Gladiolus are easy to grow and prefer full sun and well-drained soil. Plant in two week intervals for extended bloom season and continuous availability of fresh cut flowers; stake flowers when needed. Gladiolus are cold hardy in zones 8-10. In colder areas, lift the bulbs and store in a cool place over the winter.
More Information
SKUHC008703
Common Name
Traderhorn Gladiolus
Botanical Name
Gladiolus Traderhorn
Item Package Size
Bag of 15
Flower Color
Red
Light Requirements
Full Sun
Bloom Time
Mid summer until frost
Mature Height
48-56" tall
Bulb Spacing
4 bulbs per sq. ft.
Flower Bulb Size
12-14 cm
Planting Depth
Plant 8" deep
Soil Type
Sandy Soil, Average Soil
Soil Moisture
Average
Ideal Region
Northeast, Midwest, West, Southwest, Pacific Northwest
Advantages
Easy To Grow, Attract Hummingbirds, Deer Resistant, Good For Cut Flowers, Good For Containers, Extended Bloom Time (more than 4 weeks)
Additional Information
Grow as an annual in zones 3-7. Cold hardy in zones 8-10.
Zones
8, 9, 10
Ships As
Bulb, Rhizome, Tuber
Item Unit Of Measure
Corm
Poisonous or Toxic to Animals
Yes
Planting Time
Spring / Summer
Ships To Canada
No
Planting Guides

Summer Blooming Bulbs, including popular varieties such as gladiolus and dahlias, are planted in the spring and bloom in the summer. Most of these bulbs are tropical and require warm weather to be planted. There must not be any danger of frost and your ground temperature must have reached 55 degrees Fahrenheit before planting. Many of our summer blooming bulbs can be planted as perennials in zones 9-10 (zone 8 if mulched), but should be treated as annuals in cooler climates. You can lift them and store them in the fall, or bring patio pots inside before frost. See page 15 of our Planting Guide for a bulb depth planting illustration.

Growing Gladiolus: After spring frosts are over, plant the gladiolus corms (bulbs) in your flower bed wherever you want brilliant color in mid-summer. Gladiolus take very little space in the garden and can easily be planted between other plants. After planting, keep the bulbs watered regularly. Soon you’ll have bright sword-like foliage and brilliant blooms. Gladiolus corms are inexpensive, and provide excellent color for the cost. As frost threatens, you can just forget them, and replace them with new bulbs next growing season, or dig up the corms and store them in a cool try place until the following spring.


View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.
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No longer available this season.

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