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How to Grow Lunaria

Lunaria also called money plant

Lunaria bears showy racemes of purple or white four-petaled, cross-shaped flowers from late spring to summer. The flowers are followed by sprays of round, flat, translucent seedpods. The seedpods are often used in dried flower arrangements.

Lunaria flowers resemble wild mustard flowers but are purple or white, not yellow.

These biennials or herbaceous perennials are hardy. Plant them in an out-of-the-way spot or in a mixed flower bed. They easily reseed and can become weedy if not tended to.

Lunaria seedpods are about the size of a silver dollar thus the common name money plant or silver dollar plant.

 Lunaria rediviva commonly called perennial honesty
Lunaria rediviva commonly called perennial honesty

Get to Know Lunaria

  • Plant type: Biennial or perennial depending on species
  • Growing zones and range: Grows best in Zones 4 to 8
  • Hardiness: Hardy; will die back when hit by frost
  • Height and width: 24 inches (63cm) tall, 12 inches (30cm) wide
  • Foliage: Alternate, ovate to triangular-heart-shaped leaves.
  • Flowers: Small, slightly fragrant 4-petaled, cross-shaped violet-blue to white flowers; seedpods have center partitions of white papery disks the size of silver dollars.
  • Bloom time: Late spring to summer
  • Uses: Use Lunaria in shade gardens, along a shrub border, and in semi-wild areas.
  • Common name: Honesty, money plant, silver dollar, Lunaria
  • Botanical name: Lunaria spp.
  • Family name: Brassicaceae
  • Origin: Europe and Western Asia

Where to Plant Lunaria

  • Plant Lunaria in full sun or partial shade.
  • Grow Lunaria in average to humus-rich, well-drained soil.
  • Lunaria prefers a soil pH between 6 and 7.

When to Plant Lunaria

  • Sow seeds outdoors in spring after the last frost as an annual; sow seeds in summer as a biennial or perennial. Lunaria will produce foliage the first year and blooms the second year.
  • Sow seeds indoors 6 to 8 weeks before the last frost, although outdoor sowing is generally best.
  • Set container-grown plants in the garden in spring after the last frost.
Honesty Lunaria annua
Honesty Lunaria annua

Planting and Spacing Lunaria

  • It is best to sow Lunaria where the plants will grow.
  • Sow seed in finely prepared soil; barely cover the seed with soil.
  • Space lunaria 2 feet (60cm) apart.

How to Water and Feed Lunaria

  • Keep the soil evenly moist.
  • Fertilize Lunaria lightly with an all-purpose fertilizer in spring.
Lunaria dry seedpods
Lunaria dry seedpods

Lunaria Care

  • Mulch around Lunaria to conserve soil moisture.
  • Deadhead spent flowers to avoid Lunaria reseeding.
  • If using Lunaria seedpods for flower arrangements cut branches with pods in late summer to avoid damage by autumn weather.

Lunaria Pests and Diseases

  • White blister may attack leaves.
  • Roots are susceptible to club root disease.

Lunaria Propagation

  • Direct sow L. rediviva in autumn or spring; direct sow L. annua in early summer.
  • Lunaria seeds self-sow and can be invasive. Leave some seeds to ripen on the plants if you want to collect seeds for planting.
  • Divide L. rediviva in spring.
Lunaria flowers

Lunaria Varieties to Grow

  • Lunaria annua. Biennial grows 6 to 12 inches (15-30cm) tall in bloom; flowers are 1/2 -inch wide, rose-purple, or sometimes white borne on stiff upright stems. ‘Variegata’ bears white-edged leaves and red-purple flowers. Grows well in dry shade.
  • L. rediviva. Short-lived perennial bears fragrant, pale purple flowers in branching cluster up to 12 inches (30cm) across; deep green leaves with toothed edges.

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