Heirloom

Winged Everlasting

Ammobium alatum

Winged Everlasting (Ammobium alatum)

Photo: John Tann from Sydney, Australia ยท Wikimedia Commons ยท (CC BY 2.0)

The prolific 1/2- 3/4" silvery-white blooms on stiff stems are typically grown for dried-flower production but are also useful as fresh cuts for flower arrangements. The tiny blooms make an elegant addition to boutonnieres and floral crowns. As flowers mature, the papery white petals open to reveal bright-yellow centers. Flowers are typically harvested when half open, before the center is exposed. Winged Everlasting gets its name from ribbed, or winged stems the plant produces. Tender perennial in Zones 9-10 but most often grown as an annual. Once the flowers were fully open at our trial farm, we noticed lots of flying friends visiting the flowers, including hoverflies and wasps.

Harvest

70-80d

Days to harvest

๐Ÿ“…

Sun

Full sun

โ˜€๏ธ

Zones

8โ€“10

USDA hardiness

๐Ÿ—บ๏ธ

Height

3-3 feet

๐Ÿ“

Planting Timeline

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Start Indoors
Transplant
Direct Sow
Start Indoors
Transplant
Direct Sow

Showing dates for Winged Everlasting in USDA Zone 7

All Zone 7 flower โ†’

Zone Map

Click a state to update dates

CANADAUSAYTZ3NTZ3NUZ3BCZ8ABZ3SKZ3MBZ3ONZ5QCZ4NLZ4NBZ5NSZ6PEZ6AKZ3MEZ4WIZ4VTZ4NHZ5WAZ7IDZ5MTZ4NDZ4MNZ4MIZ5NYZ6MAZ6CTZ6RIZ6ORZ7NVZ7WYZ4SDZ4IAZ5INZ6OHZ6PAZ6NJZ7DEZ7CAZ9UTZ5COZ5NEZ5ILZ6WVZ6VAZ7MDZ7DCZ7AZZ9NMZ7KSZ6MOZ6KYZ6TNZ7NCZ7SCZ8OKZ7ARZ7MSZ8ALZ8GAZ8TXZ8LAZ9FLZ9HIZ10

Winged Everlasting ยท Zones 8โ€“10

What grows well in Zone 7? โ†’

Growing Details

Difficulty
Easy
Spacing18-24 inches
SoilWell-drained soil
WaterRegular
SeasonTender Perennial
ColorSilvery-white with yellow centers
Size1/2- 3/4"

Zone-by-Zone Planting Calendar

ZoneIndoor StartTransplantDirect SowHarvest
Zone 1May โ€“ JuneJuly โ€“ AugustJuly โ€“ Septemberโ€”
Zone 2April โ€“ MayJune โ€“ JulyJune โ€“ Augustโ€”
Zone 11January โ€“ JanuaryJanuary โ€“ FebruaryJanuary โ€“ Marchโ€”
Zone 12January โ€“ JanuaryJanuary โ€“ FebruaryJanuary โ€“ Marchโ€”
Zone 13January โ€“ JanuaryJanuary โ€“ FebruaryJanuary โ€“ Marchโ€”
Zone 3April โ€“ MayJune โ€“ JulyJune โ€“ Augustโ€”
Zone 4March โ€“ AprilJune โ€“ JuneJune โ€“ Julyโ€”
Zone 5March โ€“ AprilMay โ€“ JuneMay โ€“ Julyโ€”
Zone 6March โ€“ AprilMay โ€“ JuneMay โ€“ Julyโ€”
Zone 7February โ€“ MarchApril โ€“ MayApril โ€“ Juneโ€”
Zone 8February โ€“ MarchApril โ€“ MayApril โ€“ Juneโ€”
Zone 9January โ€“ FebruaryMarch โ€“ AprilMarch โ€“ Mayโ€”
Zone 10January โ€“ JanuaryFebruary โ€“ MarchFebruary โ€“ Aprilโ€”

Complete Growing Guide

Light: Full sun (6 or more hours of direct sunlight a day). Soil: Loam (Silt), Sand. Soil pH: Acid (<6.0), Neutral (6.0-8.0). Drainage: Good Drainage. Height: 3 ft. 0 in. - 3 ft. 0 in.. Spread: 1 ft. 3 in. - 1 ft. 0 in.. Spacing: 12 inches-3 feet. Growth rate: Medium. Propagation: Seed.

Harvesting

Winged Everlasting reaches harvest at 70 - 80 days from sowing per Johnny's Selected Seeds. Expect 1/2- 3/4" at peak.

Type: Achene.

Storage & Preservation

For fresh cuts, keep Winged Everlasting in cool water at room temperature (65-72ยฐF) away from direct sun; replace water every 2-3 days for a 7-10 day vase life. For dried preservation, harvest stems when flowers are half-open, tie in small bundles, and hang upside-down in a warm, dry, well-ventilated space (60-75ยฐF, 30-40% humidity) for 10-14 days. Alternatively, air-dry in a vase without water, allowing flowers to gradually open and dry. Store dried flowers in airtight containers in cool, dry conditions for 12+ months. A third method involves silica gel drying for faster results (5-7 days), though air-drying is most economical for this variety.

History & Origin

Origin: E. & SE. Australia

Advantages

  • +Attracts: Specialized Bees

Companion Plants

Lavender, rosemary, and salvia are the best neighbors for Ammobium alatum because they share the same preference for lean, well-drained soil and full sun โ€” nobody's crowding the other out or demanding extra irrigation that would rot the everlasting's crown. Yarrow and catmint add the practical benefit of drawing in parasitic wasps and predatory insects that keep soft-bodied pests in check, which matters since Ammobium doesn't have much built-in pest resistance. Marigolds (Tagetes spp.) planted at the border help deter aphids, and the color contrast against papery white flowers costs you nothing.

Keep Ammobium well away from mint and fennel. Mint spreads aggressively by underground runner and will physically outcompete slower, upright plants within a single season โ€” it doesn't play fair with anything low-maintenance nearby. Fennel (Foeniculum vulgare) is broadly allelopathic; its root exudates suppress growth across a wide range of neighbors, making it a poor fit in any mixed ornamental bed. Black walnut (Juglans nigra) produces juglone, a compound that persists in the soil and can stunt or kill sensitive plants growing anywhere under or near its canopy.

Plant Together

+

Lavender

Attracts beneficial pollinators and repels pests with similar water requirements

+

Rosemary

Drought-tolerant herb that deters harmful insects while attracting beneficial ones

+

Marigold

Natural pest deterrent that repels nematodes and aphids

+

Yarrow

Improves soil health and attracts predatory insects that control pests

+

Salvia

Similar growing conditions and attracts pollinators while repelling garden pests

+

Catmint

Repels ants, aphids, and rodents while requiring similar low-water conditions

+

Echinacea

Shares similar soil preferences and creates beneficial habitat for pollinators

+

Sedum

Compatible drought-tolerant succulent that attracts beneficial insects

Keep Apart

-

Black Walnut

Produces juglone toxin that inhibits growth of many plants including everlastings

-

Mint

Aggressive spreader that competes for nutrients and can overwhelm slower-growing plants

-

Fennel

Allelopathic properties inhibit growth of nearby plants through chemical compounds

Troubleshooting Winged Everlasting

What you'll see, why it happens, and what to do about it.

Seedlings damping off at soil level within the first 2 weeks of germination โ€” stems pinch thin and collapse

Likely Causes

  • Pythium or Rhizoctonia fungal rot from overly wet, poorly drained germination mix
  • Trays kept too cool (below 65ยฐF) and moist simultaneously

What to Do

  1. 1.Water only from the bottom and let the top of the mix dry slightly between waterings
  2. 2.Improve air circulation with a small fan โ€” even a gentle breeze makes a real difference
  3. 3.Sow into fresh, sterile seed-starting mix rather than reusing last year's trays
Leaves turning silvery or stippled, with fine webbing on the undersides during hot, dry spells

Likely Causes

  • Two-spotted spider mite (Tetranychus urticae) โ€” thrives when temperatures exceed 85ยฐF and humidity drops

What to Do

  1. 1.Blast the undersides of leaves with a firm stream of water every 2โ€“3 days to knock mite populations back
  2. 2.Apply insecticidal soap or neem oil in the early morning when temperatures are below 80ยฐF
  3. 3.Keep plants consistently watered โ€” drought-stressed Ammobium is far more susceptible
Stems elongating and flopping over before flowering, with pale green foliage and few buds by day 60

Likely Causes

  • Insufficient light โ€” fewer than 6 hours of direct sun causes etiolation in this species
  • Overly rich, high-nitrogen soil pushing vegetative growth at the expense of flower development

What to Do

  1. 1.Move containers to a spot with at least 6 full hours of direct sun, or stake floppy stems with bamboo and twine
  2. 2.Skip heavy compost amendments at planting; Ammobium alatum performs best in lean, well-drained soil
  3. 3.Pinch the growing tip once at 6โ€“8 inches tall to encourage branching and a sturdier habit

Frequently Asked Questions

How long do Winged Everlasting flowers last as cut flowers?โ–ผ
Fresh Winged Everlasting blooms typically last 7-10 days in a vase when kept in cool water away from direct sunlight. Change the water every 2-3 days to extend vase life. For longer-lasting displays, harvest when flowers are half-open and allow them to dry, which preserves them for 12+ months.
Is Winged Everlasting easy to grow from seed?โ–ผ
Yes, Winged Everlasting is very easy to grow and ideal for beginners. It requires full sun and well-drained soil, germinates reliably within 7-14 days, and thrives as an annual in most climates. The prolific blooms and low-maintenance nature make it an excellent choice for first-time growers.
Can you grow Winged Everlasting in containers?โ–ผ
Yes, Winged Everlasting grows well in containers with quality potting soil and good drainage. Space plants 18-24 inches apart. Containers allow you to position plants in full sun and control soil conditions. Regular watering and occasional feeding support healthy growth and abundant flower production in pots.
When should I plant Winged Everlasting seeds?โ–ผ
Direct sow seeds outdoors after the last frost date, or start indoors 6-8 weeks before your last spring frost for earlier blooms. The variety grows quickly, reaching harvest stage in 70-80 days. For continuous summer blooms, succession sow every 2-3 weeks through early summer.
What pollinators are attracted to Winged Everlasting?โ–ผ
Winged Everlasting attracts beneficial pollinators including hoverflies and wasps, especially once flowers fully open and expose their bright-yellow centers. This makes it valuable not only for cut flower production but also for supporting pollinator populations in gardens and attracts beneficial insects for pest control.
Why is Winged Everlasting good for dried flowers?โ–ผ
Winged Everlasting is excellent for dried arrangements because its papery petals and stiff, winged stems maintain structure and color throughout the drying process. The silvery-white petals with yellow centers provide elegant contrast, and dried blooms last 12+ months, making them economical for commercial and home floral use.

Growing Guides from Wind River Greens

Where to Buy Seeds

Sources & References

External authority sources used in compiling this guide.

See the Methodology page for how this data is sourced, what's AI-assisted, and known limitations.

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