My efforts to expand the population of the Potato Dandelion,
Krigia dandelion, at Blue Jay Barrens
met with some success during the past year. This is one of the many bright yellow
Krigia dandelion flowers that dotted
the Blue Jay Barrens landscape this spring.
Last summer, my container raised Krigia tubers were
introduced into a variety of habitats ranging from heavily wooded ridge top to…
… sunny barrens.
The combination of wind, rain and the foraging wild turkeys,
tends to remove much of the leaf litter from the ridge top site. This allows
the developing Krigia plants to receive adequate sunlight for the development
of flowers. A check in early May, found these Krigia plants showing the promise
of many blooms to come. This is one of several blocks of tubers that I planted.
The orientation of the plants in rows is quite evident.
Things didn’t look so well a couple of weeks later. Krigia dandelion seems to be a favorite of
many plant eating animals. In this case it was primarily the flower stalks and
buds that were consumed. The plants still have enough leaf area remaining to
fuel the production of new tubers to ensure the continuation of this group of
plants into future years.
Tubers planted on the wooded slopes had to fight their way
through thick leaf litter to reach the sunlight. Plants growing in these
locations rarely produce flowers, but their population size continues to grow
with the addition of new tubers.
Just to see how they would respond to a loose, organic soil,
I planted a few tubers into the remains of a decomposed tree stump. The site is to the right of what’s left of
the decomposing log in the photo.
Plenty of plants emerged. I’m certain that the area of the
stump will soon be filled with Krigia tubers, but this is another of those
sites that collects a thick deposit of leaf litter each fall, so I’m not
expecting a lot of blooms to develop at this location.
I was most impressed by the performance of those Krigia that
were planted into the gravelly barrens. Many of the plants produced blooms
which persisted well into the seed development stage. Unfortunately, the
flowers rarely produce any viable seed. It may be that Krigia dandelion is not self-fertile, and the original source of
plant material at blue Jay barrens is a clonal colony.
The tubers planted into the barrens were randomly set in
groups of two or three. They received plenty of sunlight and had little
competition from other plants.
Some of the barrens plants did suffer from predation, but an
equal number of plants remained untouched.
I’m even finding plants springing up that are not an
intended part of my Krigia project. This group of two plants was found on the
slope beside the barn. I am assuming it is resulting from the chipmunk or
squirrel that dug tubers out of one of my containers and cached them for later
consumption. I believe the Krigia redistribution project has been successful
enough to ensure that Krigia dandelion
will not be lost from Blue Jay Barrens should disaster befall the original population
site.
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