Western marsh orchid.

At a glance

Care level

Moderate

Plant type

Terrestrial orchid

Light

Partial shade to full sun

Indoor light

Bright indirect

Water

Every 2 to 5 days

Mature size

15 to 40 cm

Growth rate

Slow

Hardiness

USDA 4 to 8

Bloom time

Late spring to early summer

Care

Keep the soil consistently moist to mimic its natural boggy habitat. Watch for yellowing leaves which often signal that the soil has dried out too much. Ensure the plant gets plenty of light but protect it from harsh afternoon sun.

Watering

Keep the soil damp at all times but avoid letting the plant sit in stagnant water.

Feeding

Use a weak, balanced liquid fertilizer during the active growing season.

Pruning

Remove dead flower stalks after the plant has finished blooming.

Repotting

Repot only when the plant has clearly outgrown its container or the soil has degraded.

Soil

Moist, neutral to alkaline soil

Soil pH

6.0 to 8.0

Temperature

-34 to 25°C

Humidity

60 to 90%

Safety

People

There is no evidence of significant toxicity, but it is not intended for human consumption.

Children

The plant is not inherently dangerous, but children should be supervised to prevent accidental ingestion of garden plants.

Edibility

This plant is not considered edible and should not be consumed.

How to identify it

• Spikes of purple flowers
• Dark purple leaf spots
• Hollow flowering stems
• Palmate tuberous roots

Height

0.2 to 0.5m

Spread

0.15 to 0.3m

Leaves

green, spotted, deciduous

Flowers

purple, pink, 1 to 2cm

Problems to watch for

• Slugs · Slugs can feed on the tender new growth in spring.

Growing it

Propagation

division, seed

When to plant

spring, autumn

Group these with other moisture loving perennials to create a stable wetland microclimate.

Grows well with

• Marsh Marigold · They share similar requirements for wet, boggy soil conditions.
• Ragged Robin · This companion thrives in the same damp meadow habitats.

Similar species

• Common Spotted Orchid · It is a closely related species with similar growth habits and appearance.

Science

Family

Orchidaceae

Genus

Dactylorhiza

Order

Asparagales

Class

Liliopsida

Native range

Europe and parts of western Asia.

Conservation

It is protected in many parts of its native range due to habitat loss.

It relies on specific soil fungi to provide nutrients to its tiny seeds during germination.

Value to wildlife

attracts bumblebees (flowers offer no nectar)

Pollinators

bees, butterflies

Uses

bog gardens, wildlife meadows, wetland restoration

Taxonomy resolved against GBIF.

Questions people ask

Does it need full sun?

It prefers full sun to partial shade in consistently moist soil.

Can I grow it in a regular garden bed?

Only if you can maintain very high soil moisture levels year round.

Where the name comes from

Dactylorhiza comes from the Greek words for finger and root, referring to the tuber shape, while majalis means blooming in May.

Good to know

• It is a terrestrial orchid that thrives in damp meadows.
• The leaves often feature dark purple spots.
• It requires specific mycorrhizal fungi in the soil to germinate from seed.