Mistletoe - second to the Christmas tree, it is the staple yuletide plant. Songs are written about it, doors adorned with it and kisses won under it, but this seasonal decoration and great matchmaker is under threat, it is believed. The RHS is awash with rumours that the fabled mistletoe is in steady decline, with a parallel being drawn to its host trees who are suffering a similar fate. The theory goes that, due to a 60% decline in domestic orchard growing, the vegetation that would normally house the festive species has been less available.
In response to this, an action group known
as the Mistletoe League Project have begun a survey into the harvesting technique
applied to mistletoe which, as they say, is capable of flourishing on many
other host species, but is most readily available from fruit trees due to the
ease of access this offers. The
long term goal of this is survey is to replenish to mistletoe population and
you can help with that as well.
If you’re lucky enough to have some growing
nearby you can collect berries to propogate from. The first and most important
choice you will make is the selection of suitable fruits - if the berry is
yellow or green then that means it is not ripe and should be avoided, pure
white or nothing at all you should aim for. Alternatively if you don’t live
near a ready supply, any specimens you’ve been using over the festive period
can be revived by soaking them in water. Store them in a jar of water and keep
the jar cool until planting season in late February.
The second phase of mistletoe cultivation is
selecting an appropriate host. While it is established that they will do very
well on apple trees, this gives rise to the further possibility of pear tree
symbiosis or even Paracantha. Rose bushes are also a good place to start as
their brittle branches will allow the mistletoe to densely intertwine into a
strong foundation. Whilst Mistletoe is parasitic, unless it gets too big, it is
not generally harmful to its host, but nevertheless, always choose established,
healthy specimens to try to ensure success.
When approaching larger hosts such as the
aforementioned tree species, it is difficult to strike the right balance
between sunlight exposure and vulnerability to predators. There are two techniques
to combat this; the first is fairly acrobatic in that you should attempt to
locate the seeds in the crooks and hollows of the trees higher branches - this
will allow plenty of exposure to sunlight and you can ward off hungry birds
with a well-placed sheet of hessian secured with twine. The second technique
involves cutting slots beneath the tree bark and creating small ‘pages’ that
can be folded back over the seed. It is important with both that you removed
the seed from a plump, hydrated berry with some of the flesh intact to further
encourage initial germination. Remember, however, that
mistletoe propagation is a numbers game, as even a healthy seed has a fairly
low rate of germination-less than 10% generally-so be meticulous about marking
where you have planted them so you don’t end up shooting yourself in the foot!
