Sweet Everlasting

Common name Sweet Everlasting
Latin name Pseudognaphalium obtusifolium
Quantity per packet Minimum 750 seeds

This native annual improves biodiversity by providing an important late-season food source for pollinating insects. It grows easily in poor soils and requires very little maintenance.

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Product information
Product
identification
Common nameSweet Everlasting
Latin namePseudognaphalium obtusifolium
FamilyAsteraceae
TypeNative annual
CycleAnnual
Quantity per packMinimum 750 seeds
Product
description

Sweet Everlasting (Pseudognaphalium obtusifolium) is a subtle yet valuable native annual admired for its silvery gray-green foliage, lightly aromatic leaves, and strong ecological value. Growing 30 to 90 cm (12 to 35 in) tall with a spread of 20 to 40 cm (8 to 16 in), it forms a light, natural silhouette that blends beautifully into wild gardens and native meadows. From August through October, its small creamy white flower clusters persist for weeks, adding late-season interest to the garden. Hardy as seed and well adapted to Canadian growing conditions, this resilient native wildflower thrives in poor soils and low-maintenance landscapes.

Sweet Everlasting grows best in full sun to partial shade in poor, light, well-drained sandy to loamy soil. Surface sow Pseudognaphalium obtusifolium seeds in autumn or in spring after cold stratification, as light helps promote germination. At 18 to 22°C (64 to 72°F), germination usually occurs within 20 to 30 days when the growing medium remains lightly moist. Once rooted, this native annual tolerates dry periods very well and needs little watering. Fertilization is rarely necessary; a light compost application is enough in very poor soils. It can also be grown in containers using a sharply drained growing medium.

In naturalistic gardens, rock gardens, dry slopes, and pollinator-friendly plantings, Sweet Everlasting adds distinctive silvery texture while supporting late-season biodiversity. It pairs beautifully with Goldenrod, Black-eyed Susan, Wild Bergamot, and Butterfly Milkweed. Its late bloom provides nectar and pollen for native bees, butterflies, and other beneficial insects when floral resources become scarce. The aromatic leaves have also been used traditionally in herbal infusions, though today Pseudognaphalium obtusifolium is grown mainly for its ornamental value, ecological importance, and easy naturalization.

Sowing
guide
Sowing periodAutumn or spring after cold stratification
Best time
Spring after the last frost
Sowing depthSurface sow
Spacing / density
45 to 60 cm (18 to 24 in)
Germination temperature18 to 22°C (64 to 72°F)
Germination time20 to 30 days
Propagation
Propagate by seed.
Growing
method
Surface sow Sweet Everlasting seeds in autumn or spring after cold stratification, as light is required for successful germination. Keep the growing medium lightly moist until seedlings emerge. This native annual thrives in poor to moderately fertile, well-drained soils and develops the best form and silvery foliage in full sun. It readily self-seeds when conditions are favorable, tolerates drought well, and requires very little maintenance. Sweet Everlasting is an outstanding choice for natural gardens and biodiversity-focused landscapes.
Soil
and care
ExposureFull sun to partial shade
Soil
Poor, sandy to loamy, well-drained soil. This species thrives in light soils and tolerates low fertility exceptionally well.
Soil pH5.5 to 7.5
Watering
Light watering is beneficial while young plants become established. Once rooted, Sweet Everlasting tolerates dry conditions well and requires very little supplemental watering.
Fertilization
Little to no fertilization is required. A light application of compost in spring is sufficient in very poor soils.
Care levelLow
In spring, monitor emerging seedlings and remove competing weeds. During summer, water only during prolonged drought, as this species tolerates dry conditions very well. Allow some flowers to set seed to encourage natural reseeding. In autumn, leave a portion of the stems standing to provide food for wildlife and preserve seed production. This easy-care native annual requires very little maintenance throughout the growing season.
Container
growing
Recommended pot size
30 to 40 cm (12 to 16 in)
Sweet Everlasting grows well in containers at least 30 to 40 cm (12 to 16 in) deep filled with a light, sharply drained growing medium. Once established, it tolerates relatively dry conditions exceptionally well. A sunny location encourages dense silvery foliage and abundant flowering. Container culture also provides better drainage during extended rainy periods.
Bloom,
harvest
and garden
Its silvery foliage and delicate fragrance add unique texture to natural gardens, while its late-season flowers provide an essential food source for pollinators when many other plants have finished blooming.
This native annual improves biodiversity by providing an important late-season food source for pollinating insects. It grows easily in poor soils and requires very little maintenance.
Garden use
Sweet Everlasting brings beautiful silvery texture to naturalized gardens and complements prairie plantings perfectly. It combines beautifully with Goldenrod, Black-eyed Susan, and Butterfly Milkweed in pollinator-friendly landscapes. Its late-season flowers support beneficial insects when floral resources become scarce, and it is equally at home in rock gardens, dry slopes, and low-maintenance ecological landscapes.
Bloom period
Small creamy-white flower clusters bloom from August through October, providing an important late-season nectar source for pollinators.
Flower colorCreamy white
Foliage colorSilvery gray-green
Harvest
September to October
Fruiting
Achenes containing numerous small seeds
Wildlife appealButterflies and bees
Size
and facts
Height30 to 90 cm (12 to 36 in)
Spread20 to 40 cm (8 to 16 in)
Growth rateModerate
Hardiness zoneUSDA Zones 3–8
Minimum temperature-40°C (-40°F)
Foliage typeDeciduous
Papillonstrue
Insectes utilestrue
Résistant aux cerfstrue
Planting
partners
Good companions
Goldenrod, Black-eyed Susan, Wild Bergamot, Butterfly Milkweed
Avoid planting with
Northern Blue Flag Iris, Cardinal Flower, Marsh Marigold, Horsetail
Recipe
and inspiration
The aromatic leaves have traditionally been used in herbal infusions and folk herbalism. Their fragrance has subtle notes reminiscent of maple and native woodland herbs. Harvest only from correctly identified plants grown in uncontaminated environments. Today, Sweet Everlasting is valued primarily for its exceptional ecological importance and ornamental beauty.
Frequently asked questions
Sweet Everlasting seeds can be sown in autumn or spring. Surface sowing is important because light promotes successful germination.
Yes. Its late-season flowers provide nectar and pollen for native bees, butterflies, and many other beneficial insects when floral resources become scarce.
Yes. Sweet Everlasting thrives in sandy, low-fertility soils where many other plants struggle to grow.
Absolutely. Its native status, drought tolerance, and exceptional value for pollinators make it an excellent choice for ecological and biodiversity-focused landscapes.
The leaves and flowering tops can be harvested during the growing season and dried in a well-ventilated location for later use in traditional herbal preparations.
The availability of our seeds varies depending on seasonal availability, production schedules and supplier inventory. Certain varieties may only be offered for a limited time based on their natural growth cycle, sowing period or available stock. These product pages are designed to help and inspire gardeners in choosing the right seeds for vegetable gardens, flower beds, pollinator gardens, container growing, naturalization projects and sustainable outdoor spaces.