Does it need full sun?

No, it prefers partial to full shade.

Yes, unlike the biennial Lunaria annua, this species returns year after year.

Plant guide

Perennial honesty.

Lunaria rediviva

Pronounced loo-NAIR-ee-uh reh-dih-VEE-vuh

Also known as Perennial Honesty

Perennial honesty is a lovely woodland plant known for its fragrant, pale purple flowers and unique papery seed pods. It thrives in cool, shaded spots and adds a touch of elegance to any garden. You'll enjoy its delicate beauty from late spring into early summer.

At a glance

Care level: Easy
Plant type: Perennial
Light: Partial shade to full shade
Indoor light: Medium light
Water: Every 3 to 7 days
Mature size: 3 feet tall
Growth rate: Medium
Hardiness: USDA 5 to 8
Bloom time: Late spring to early summer

Care

Plant this beauty in moist, well draining soil and keep it sheltered from harsh afternoon sun. Watch for wilting during dry spells, as it prefers consistent moisture to stay happy. Keep an eye out for slugs or snails that might enjoy snacking on the foliage.

Watering: Keep the soil consistently moist but not waterlogged.
Feeding: Apply a balanced organic fertilizer once during the spring growth spurt.
Pruning: Cut back dead stems in late autumn or early spring to tidy up the plant.
Repotting: This plant prefers being in the ground, but if kept in a container, refresh the soil every few years.
Soil: Moist, humus rich, well draining soil
Soil pH: Neutral to slightly alkaline
Temperature: -25 to 25°C
Humidity: 40 to 70%
Drought tolerance: Low
Lifespan: Perennial, typically 5 to 10 years
Fragrance: Strong
Deer and rabbits: Moderate

Signs it needs repotting

Roots growing out of the drainage holes
Water running straight through the pot without soaking in
Noticeable decline in vigor during the growing season

Safety

People: The plant is generally considered non-toxic but may cause mild stomach upset if ingested in large quantities.
Children: The dried seed pods are brittle and may pose a choking hazard if handled by small children.
Contact allergens: Handling the foliage may cause mild skin irritation in sensitive individuals.
Airborne allergens: The pollen can trigger mild seasonal allergies in some people.
Edibility: While not highly toxic, the plant is not considered a culinary herb and should be avoided for consumption.

How to identify it

Fragrant pale purple flower clusters
Heart shaped serrated green leaves
Translucent papery seed pods
Sturdy upright branching stems

Height: 0.6 to 1m
Spread: 0.3 to 0.45m
Leaves: green, deciduous
Flowers: lavender, white, 2 to 3cm
Fruit: silvery, translucent, Late summer

Problems to watch for

Powdery MildewCommon
Slugs and SnailsCommon
AphidsUncommon
Root RotUncommon

By symptom

Plant problems by symptom

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Growing it

Propagation: seed, division
When to plant: spring, autumn
Overwintering: Cut back dead foliage in late autumn to tidy the plant, but leave the root crown protected with a light layer of mulch.
In containers: It grows well in large pots, at least 30 centimeters in diameter, provided the soil stays consistently moist.

Seed

1. Collect dry seed pods in autumn.
2. Sow seeds directly into moist soil in a shaded area.
3. Keep the soil consistently damp until germination occurs.

Division

1. Carefully dig up the plant in early spring.
2. Gently pull the root clump apart into smaller sections.
3. Replant immediately in well-draining, moist soil.

Plant in groups of three or more to create a drift effect in shady borders.

Grows well with

Hosta · They share similar shade and moisture requirements.
Bleeding Heart · They provide a beautiful contrast in texture for woodland beds.

Similar species

Money Plant · It is a biennial relative with similar seed pods.

Science

Family: Brassicaceae
Genus: Lunaria
Order: Brassicales
Class: Magnoliopsida
Native range: Central and Southern Europe
Conservation: This species is not currently threatened and is common in its native range.

It grows naturally in moist, shaded woodland areas where it can spread through self-seeding.

Value to wildlife: nectar source, larval host plant
Pollinators: bees, butterflies, moths
Uses: ornamental garden plant, dried flower arrangements, shade garden filler

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 1/9
Soil reaction: 6/9
Light: 3/9
Temperature: 4/9
Moisture: 6/9
Nutrients: 5/9

Taxonomy resolved against GBIF.

Questions people ask

Does it need full sun?: No, it prefers partial to full shade.
Is it a perennial?: Yes, unlike the biennial Lunaria annua, this species returns year after year.

Where the name comes from

The genus name Lunaria comes from the Latin word for moon, referring to the shape of the seed pods, while rediviva means brought back to life.

Good to know

The plant is a perennial unlike its common cousin Lunaria annua.
The seed pods retain their silvery appearance for months after drying.
It thrives in cool, shady woodland settings.
The flowers are notably fragrant, especially in the evening.
It is a member of the mustard family.

Also in

Plants for shade

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This guide was generated with AI on September 26, 2026 and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.