Batten Blooms
PL. —Ammobium alatumBotanical illustration — drop image
Ammobium alatum

Winged Everlasting

SpringSummerFall
3a–10bHardiness zone
Peak bloom windowZone 6b · frost-offset weeks
Winter
Not in bloom
Spring
Peak bloom
Summer
Peak bloom
Fall
Not in bloom
Peak bloom
In bloom
Background

Winged everlasting (Ammobium alatum) is an Australian native in the daisy family, grown as an annual in most climates for its bright white papery bracts surrounding small yellow centers. It holds color and form exceptionally well when dried, making it a reliable plant for both fresh-cut and everlasting arrangements.

The plant produces prominently winged stems rising from a basal rosette of leaves, branching freely and remaining in flower from early summer through fall. It thrives in well-drained, sandy or gravelly soil of low to moderate fertility and tolerates drought once established. In zones 8 and warmer it can persist as a short-lived perennial; in colder zones it behaves as an annual but self-seeds readily where soil is left disturbed and open. Harvest for drying when the outer bracts are fully spread but before the yellow disk center expands fully — at that point color is preserved longest. Hang in small bunches upside down in a dark, well-ventilated space.

Good companions
StrawflowerZinniaCosmosCalendula
Care guide
SunFull sun
WaterLow
SoilWell-drained, sandy, dry
Spacing12–18 in
Height24–36 in
Zone3a – 10b
Direct sow
Seasonal tasks
spring
sowStart seeds indoors in trays, pressing lightly onto the surface without covering — seeds require light to germinate. Maintain 65–70°F; germination takes 10–14 days. Harden off before transplanting.
sowDirect sow on the soil surface in a sunny, well-drained bed after last frost. Do not cover seeds. Thin to 12–18 inches once seedlings reach 2 inches tall.
summer
watchCheck new growth for aphid colonies during warm spells. Dislodge with a strong water spray or apply insecticidal soap if populations build.
cutHarvest stems for drying when outer bracts are fully open but the yellow disk center has not yet expanded. Cut in the morning, strip lower leaves, and hang in small bunches in a dark, ventilated space.
fall
cutRemove spent stems regularly to encourage continued branching and new flowering growth into fall.
watchAllow a few stems to ripen and drop seed at season's end if self-sowing is desired. Collect seed heads before they shatter if spread needs to be controlled.
Common problems

Damping Off

Symptoms

Seedlings collapse at the soil line with thin, water-soaked stems; seeds may fail to emerge or rot before sprouting.

Treatment

Sow in well-draining mix, avoid overwatering, and ensure good airflow. Remove affected seedlings and let the surface dry between waterings.

Powdery mildew

Symptoms

White or grey powdery coating on leaves — usually starting on older growth in humid conditions or when nights cool.

Treatment

Improve air circulation by thinning plants. Apply neem oil or potassium bicarbonate spray at first sign. Avoid overhead watering.

Botrytis (grey mould)

Symptoms

Grey fuzzy mould on petals and stems, worst in cool wet conditions.

Treatment

Remove affected parts immediately. Improve air circulation. Avoid overhead watering. Apply copper fungicide if severe.

Fungal leaf spot

Symptoms

Brown or purplish spots on the leaves, often ringed with a yellow halo, that spread and merge in warm, humid, or wet weather; heavily spotted leaves yellow and drop early.

Treatment

Pick off spotted leaves and clear fallen debris to remove overwintering spores. Improve air circulation by thinning, and water at the base so foliage dries quickly. If it persists, apply a copper- or sulfur-based fungicide at the first sign.