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Dactylorhiza elata (Robust marsh orchid)

Advanced
skill rating
1 hour care
per year
1m
Max height
0.25m
Max spread
2-5 years
To maturity

Plant details

Botanical name

Dactylorhiza elata

Other names

Robust marsh orchid, Orchis elata

Genus

Dactylorhiza Dactylorhiza

Species

D. elata - D. elata is a vigorous, deciduous, terrestrial orchid with lance-shaped to narrowly oblong, sometimes spotted, dark green leaves and spike-like racemes of reddish-purple to magenta flowers in late spring and early summer.


Dactylorhiza elata is: Deciduous

Habit

Erect flower stem

Awards

RHS AGM (Award of Garden Merit)

Flower

Reddish-purple in Spring; Reddish-purple in Summer

Foliage

Mid-green in Spring; Mid-green in Summer; Mid-green in Autumn

How to care

Watch out for

General care

Pruning

Deadhead regularly.

Propagation

Divide every 3-4 years in early spring.

Propagation methods

Division


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Where to grow

Dactylorhiza elata (Robust marsh orchid) will reach a height of 1m and a spread of 0.25m after 2-5 years.

Suggested uses

Rock, Cottage/Informal, Beds and borders, Wildflower, Woodland

Cultivation

Grows best in humus-rich, moist but well-drained soil in partial shade. Will tolerate full sun if soil is kept consistently moist. Avoid waterlogged soil. In pots, grow in equal parts loam-based compost, grit and humus-rich compost. Suitable for a woodland or rock garden or a wildflower meadow.

Soil type

Loamy

Soil drainage

Moist but well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade

Aspect

North, East, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

Companion plants

We do not currently have companion plants added for this plant.

Botanical name

Dactylorhiza elata

Other names

Robust marsh orchid, Orchis elata

Genus

Dactylorhiza Dactylorhiza

Species

D. elata - D. elata is a vigorous, deciduous, terrestrial orchid with lance-shaped to narrowly oblong, sometimes spotted, dark green leaves and spike-like racemes of reddish-purple to magenta flowers in late spring and early summer.

Foliage

Deciduous

Habit

Erect flower stem

Awards

RHS AGM (Award of Garden Merit)


Colour

Flower

Reddish-purple in Spring; Reddish-purple in Summer

Foliage

Mid-green in Spring; Mid-green in Summer; Mid-green in Autumn

General care

Pruning

Deadhead regularly.

Propagation

Divide every 3-4 years in early spring.

Propagation methods

Division


Monthly care advice


Where to grow

Dactylorhiza elata (Robust marsh orchid) will reach a height of 1m and a spread of 0.25m after 2-5 years.

Suggested uses

Rock, Cottage/Informal, Beds and borders, Wildflower, Woodland

Cultivation

Grows best in humus-rich, moist but well-drained soil in partial shade. Will tolerate full sun if soil is kept consistently moist. Avoid waterlogged soil. In pots, grow in equal parts loam-based compost, grit and humus-rich compost. Suitable for a woodland or rock garden or a wildflower meadow.

Soil type

Loamy

Soil drainage

Moist but well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade

Aspect

North, East, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 8, Zone 7, Zone 6

Defra's Risk register #1

Plant name

Dactylorhiza elata (Robust marsh orchid)

Common pest name

Scientific pest name

Orchidophilus spp.

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

3

Impact (1 is very low - 5 is very high)

4

General biosecurity comments

A pest of orchids spreading in trade. Currently absent from the UK and unlikely to establish outdoors. Could cause severe damage to hosts growing in protected cultivation.

Defra's Risk register #2

Plant name

Dactylorhiza elata (Robust marsh orchid)

Common pest name

common blossom thrips; cotton bud thrips; tomato thrips

Scientific pest name

Frankliniella schultzei

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Polyphagous glasshouse pest; present in many countries; single finding in UK.

Defra's Risk register #3

Plant name

Dactylorhiza elata (Robust marsh orchid)

Common pest name

Rice leaf nematode; Strawberry crimp disease nematode; White tip nematode; White tip nematode of rice

Scientific pest name

Aphelenchoides besseyi

Type

Nematode

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Damaging nematode affecting rice crops and strawberry production in warmer climates; could potentially present a threat to strawberry production and ornamental production in protected environments. But modern production practices seem to reduce likelihood of impacts. Pest is also regulated at EU level; which reduces likelihood of entry.

About this section

Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.

Traveling or importing plants? Please read "Don't risk it" advice here

Suspected outbreak? Click here for contact details to report to the relevant authority.

Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/

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This plant likes... Garden match
Soil types: Loamy Tell us...
Soil drainage: Moist but well-drained Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Partial Shade Tell us...
Aspect: North, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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