Lilac fritillary Plant Care

Lilac fritillary (Fritillaria liliacea) belongs to the Liliaceae family within the Fritillaria genus. Lilac fritillary is native to the region surrounding San Francisco Bay in California, USA. Lilac fritillary is also known as Naked-stemmed fritillary.

Lilac fritillary displays a tall, elegant stem with nodding bell-shaped flowers growth habit, reaching up to 3 ft tall with a spread of approximately 0.5 ft. Lilac fritillary produces graceful bell-shaped flowers in shades of purple, white, or yellow.

Water a young or newly planted Lilac fritillary every 7–14 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Lilac fritillary thrives in partial shade to full sun.

Fritillaria liliacea tolerates temperatures of 50–75°F. Lilac fritillary prefers humidity levels of 40–60%.

Well-draining, fertile soil with added organic matter like compost or peat moss. Good drainage is essential for Lilac fritillary to prevent waterlogging, which leads to root rot and fungal issues.

Feed Lilac fritillary every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.

Stop feeding by late summer so new growth can harden before winter.

The PlantoScan app can remind you when to water and when to fertilize each plant.

Choose a spot with partial shade to full sun and well-draining, fertile soil with added organic matter like compost or peat moss. Avoid low spots where water collects after rain.

Lilac fritillary is suited to USDA Zone 12a.

Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.

Lilac fritillary can spread to about 1 ft (0.2 m) and reach about 3 ft (1 m) tall. Space plants about 1 ft (0.2 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.

Planning a row or hedge? Try the plant spacing calculator.

Prune Lilac fritillary while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.

If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.

Lilac fritillary is frost-tender (hardy to USDA zone 12). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

Lilac fritillary can be propagated through division of offsets, seeds. Similar propagation techniques also apply to turkish crown imperial plant care, which shares the same genus.

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Lilac fritillary is susceptible to aphids, slugs, snails. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

Lilac fritillary grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Lilac fritillary is native to the region surrounding San Francisco Bay in California, USA. In cooler regions, grow Lilac fritillary as a houseplant or bring it indoors before the first frost.