Odontoglossum Margarete Holm (Odontoglossum Margarete Holm )

Botanical name

Odontoglossum Margarete Holm

Other names

X Odontioda Margarete Holm , Odontoglossum Margarete Holm

Genus

Odontoglossum Odontoglossum

Variety or Cultivar

Margarete Holm _ Margarete Holm is an epiphytic orchid with elliptic to oblong, mid-green leaves and, at any time of year, racemes of white flowers, heavily spotted and barred with magenta to maroon markings.

Foliage

Evergreen

Habit

Arching, Upright

---

Colour

Flower

Maroon, Magenta, White, Striped, Spotted in All seasons

Foliage

Green in All seasons

---

How to care

Watch out for

Specific pests

Aphids , Glasshouse red spider mite , Mealybugs

Diseases

May suffer from virus.

General care

Propagation

Divide when plants overflow their containers.

Propagation methods

Division

---

Monthly care advice

---

Where to grow

Odontoglossum Margarete Holm (Odontoglossum Margarete Holm ) will reach a height of 0.7m and a spread of 0.5m after 5-10 years.

Suggested uses

Containers, Greenhouse, Indoor

Cultivation

Grow in pots of epiphytic orchid compost under glass between 10ºC-24ºC in bright filtered light. Provide high humidity in summer. In growth, mist daily & water freely, feeding with half-strength fertiliser every 3rd watering. Water sparingly in winter.

Soil type

Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Acid, Neutral

Light

Partial Shade

Aspect

East, West

Exposure

Sheltered

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

Indoor heated (H1), Indoor unheated (H2)

USDA zones

Zone 11, Zone 10, Zone 9

Defra's Risk register #1

Plant name

Odontoglossum Margarete Holm (Odontoglossum Margarete Holm )

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

Odontoglossum Margarete Holm (Odontoglossum Margarete Holm )

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.

Defra's Risk register #3

Plant name

Odontoglossum Margarete Holm (Odontoglossum Margarete Holm )

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.

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