Multiplying terrestrial orchids

[mark smyth]

Is it only Dactylorhiza that can be multiplied by removing the new tuber in July?

[Neil]

No

See here

http://forum.terrorchid.org/viewtopic.php?t=153

[mark smyth]

THanks for the link

[Neil]

Mark 

Also you can do it in the Autumn this is from a German Forum, i have used Google translate


Berthold
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RATE Ophrys multiplication
" on 27.Oct.08 at 15:43 clock »

If you have an Ophrys, but I would like to have two, one can proceed as follows.

When waiting until late fall to the rosette is almost finished and the plant has produced clear roots:


Bottom left on the stalk still sees the short shoots, on which the new bulb is formed. The roots are already quite well developed. The old bulb is bent downwards and somewhat difficult to see.

You put a cut just above the old corm, without the roots, and certainly not to hurt the little new shoot:



The plant in this picture is rotated so that the new shoot of the old plant is visible right now.
Both interfaces are sprinkled with activated charcoal to reduce the risk of infection and planted roses and old corm normally again. The old corm hold little drier!
Both parts of the plant to form new tubers, the rosette of the new shoot, the old corm from the interface, below which are still growing points for new life after such a disaster.

The plant is covered by fungal hyphae (these white threads) that protects against rot Ophrys. The fungus requires a lot of natural organic matter in the substrate to life. (To prevent the rotting away of the tuber) cultivation in pure mineral substrates is a mistake!

[Neil]

They also go on to say that this process can be used for Orchis, Himatoglossum and other winter green species ], I haven;t given this a try but will do so this year as I don't have much success doing it in the spring. 

[Neil]

Mark

Also Platanthera, Gymnadenia and Nigritella can as be done the same as Dactylorhiza and regarding the timing of when to do it, it needs to be done just before it throws its flower spike up, and then try and keep it green as long as possible.  Personnel I only do this every other year so that the tubers get to a decent size.

[mark smyth]

Thanks for all the info. The reason I asked is a friend has told me he has Orchis mascula in his garden and was willing to send some tubers to me.

[mark smyth]

I just lifted this self sown Dactylorhiza that flowered for the first time this year
marksgardenplants.com/dactylorhiza%20under%20birch.html and was amazed to find 4 tubers at the base of the single stem. If this plant continues like this every year I'll be very happy.

[annew]

A timely reminder, Mark, thanks.

[Maggi Young]

Dacts just coming into flower here in Aberdeen -it'll be a while before we think of doing any splitting on them here.

[mark smyth]

mine are mostly finished flowering now

[mark smyth]

I just had a sneaky peek at one of my Dactylorhizas that had the new tuber removed in July. I'm happy to see a new thumbnail sized tuber.

Also another Dactylorhiza has new noses above ground already. Too wet? Doesnt know what season it is?

[mark smyth]

Why cant orchid suppliers sell plants like these rather than the whizzened tubers that arrive in a plastic bag and nothing else. My swaps always go out in damp multipurpose compost or leaf mould

[mark smyth]

I just had a sneaky peek at one of my Dactylorhizas that had the new tuber removed in July. I'm happy to see a new thumbnail sized tuber.

The new tuber is growing on the side opposite to where I removed the new tuber. Does this mean all Dactylorhiza are capable of producing two or more tubers?

[mark smyth]

Maren I lifted your Dactylorhiza today