Youth Dew Gladiolus

Green blossoms are prized by gardeners who love to use unusual accents, and the chartreuse color of ‘Youth Dew’ Gladiolus are tops the list. With a strong vertical shape and an abundance of lemon-lime blossoms, tall ‘Youth Dew’ will contrast shades of violet, harmonize with whites and greens, and add a bright note of citrus to your garden. Heat tolerant, deer-resistant blooms attract pollinators and hummingbirds throughout the summer.
Zones1 - 10
Attract Butterflies
Deer Resistant
Easy To Grow
Good For Cut Flowers
Good For Containers
Light Requirements
Full Sun
Water Tolerance
Mature Spread 40-44" tall
Bulb Spacing4 bulb / tuber per sq. ft.
Bloom TimeEarly summer
Shipping DetailsNo longer available this season. Learn More…
Item Package SizeBag of 15

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).

Find Your Planting Zone:

Product is Out of Stock
Out of stock

Shop Exclusive Deals

(40-44” tall x 10” wide) ‘Youth Dew’ Gladiolus sports tall, flowering stems in early summer that are packed with up to 12 large yellow flowers suffused with a light green tint – giving the overall effect of a full, frilly spike of green blossoms. (They have a similar appearance to Bells of Ireland, but slightly less finicky.) ‘Youth Dew’ Gladiolus makes a versatile cut flower for vases, and the funnel-shaped deer-resistant blossoms are very attractive to hummingbirds. Plant this larger gladiolus cultivar in well-drained soils 8 inches deep at a rate of 6-8 per square foot, and either provide protection from wind, or some type of staking for the blossoming spikes, which become heavy with blooms mid-summer and can flop with the weight. The yellow-green shade of ‘Youth Dew’ Gladiolus makes it a good contrast for violet-heavy gardens, but consider also using it in a green and white garden with the softening accents of variegated grasses. ‘Youth Dew’ is hardy to Zone 8. Gardeners in colder zones should dig the corms in autumn when foliage has died back and store in moistened sawdust in a frost-free location.
More Information
Common Name
Youth Dew Gladiolus
Botanical Name
Gladiolus Youth Dew
Item Package Size
Bag of 15
Flower Color
Light Requirements
Full Sun
Bloom Time
Early summer
Mature Height
40-44" tall
Bulb Spacing
4 bulb / tuber per sq. ft.
Planting Depth
Plant 8" deep
Soil Type
Average Soil, Sandy Soil, Compost Enriched Garden Loam Soil, Well-Drained Soil
Soil Moisture
Ideal Region
Northeast, Southeast, Midwest, West, Southwest, Pacific Northwest
Attract Butterflies, Deer Resistant, Easy To Grow, Good For Cut Flowers, Good For Containers
Additional Information
Hardy in zones 8-10 but grown as an annul in zones 1-7
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Ships As
Bulb, Rhizome, Tuber
Planting Time
Spring / Summer
Ships To Canada
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.

No longer available this season.

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat.  The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

Perennials and spring-planted bulbs are shipped at the proper planting time for your hardiness zone. Perennial and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment and all items are shipping to the same address, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you have any questions, please call Customer Service toll-free at (800) 925-9387 or contact us by email.

Shipping Rates

Our shipping rates are calculated based on our actual average shipping costs. We do not seek to profit from shipping fees, so rest assured that our shipping rates reflect an average of what it costs to get our guaranteed products safely to your door.

US Shipping Charges

Merchandise Total Shipping
Up to $19.99$8.99
$20 to $34.99$10.99
$35 to $49.99$12.99
$50 to $74.99$14.99
$75 to $99.99$16.99
$100 and Over$18.99

Canadian Shipping Charges

Merchandise Shipping
Up to $24.99$14.95
$25 to $49.99$19.95
$50 to $74.99$24.95
$75 to $99.99$29.95
$100 and Over$39.95

We charge one low flat rate for shipping our products even if your order requires multiple shipments. If you have any questions, please call us at (800) 925-9387.

Q & A