Autumn brilliance serviceberry not blooming/leafing - Ask Extension
Thanks for your advice. I bought three 5' bareroot Autumn Brilliance shrub form serviceberry & planted them 2 yrs ago. They seemed to do okay up u...
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Autumn brilliance serviceberry not blooming/leafing #398297
Asked May 07, 2017, 2:35 PM EDT
Thanks for your advice. I bought three 5' bareroot Autumn Brilliance shrub form serviceberry & planted them 2 yrs ago. They seemed to do okay up until now. 1st anniversary they bloomed, leafed out & berried. Seemed ok until now - only 1 is blooming/leafing out. They're in a sunny area near my driveway. In summer 1 of them receives part shade. 1 of them receives a bit more water than the others, it's near my neighbors house & their roof deposits water there after a rain. But generally they are in similar conditions, spaced 8-9 ft apart in a slight V formation. When we had the thaw in Feb it seemed they formed buds at that time. If they budded and froze why is 1 blooming? Or if the spot is too wet why is 1 doing great & the two furthest apart not? It's the 1 in center that's doing okay. Seems to be a bit of rabbit damage on 1 of the sad ones but the other 2 were wrapped with paper tree wrap, incl the other sad tree. Should I panic? How can I determine if they're indeed alive & if I should consider moving them? They did okay for a year
Anoka County Minnesota
Expert Response
Autumn brilliance
serviceberry are nice shrubs. The following site has information about
serviceberry.
http://www.extension.umn.edu/garden/yard-garden/trees-shrubs/serviceberry-juneberry/index.html Service
berry has limited drought tolerance, and does not withstand ponding. How
quickly does the soil drain the roof runoff? The tree should be moved if the roof runoff on
the site does not drain quickly. Trees will bloom best with the most sunlight. Fruit
trees that are normally winter hardy may suffer bud damage when they
start to come out of winter dormancy. The temperature at
which fruit buds are injured depends primarily on their stage of development.
As flowers begin to swell and expand into blossoms, they become less resistant
to freeze injury. Not
all blossoms on a tree are equally tender. Resistance to freeze injury varies
within and between trees. Buds that develop slowly tend to be more resistant.
The tree in partial shade may bloom later than the full sun trees. As a result,
some buds are usually killed at higher temperatures, while others are resistant
at much lower temperatures.
Scratch swollen leaf buds with your fingernails and look for
a green color to indicate life. Gray or
brown color leaf buds are dead. Branches
that are alive will bend easily. Dead branches will snap off. Prune serviceberry in late winter
(February-early April). Spring or summer pruning increases chances for
infection and spread of the bacterial disease fireblight. Autumn or
early winter pruning is more likely to result in drying and die-back at pruning
sites. This disease is more evident in warm and wet seasons and looks
like the tips of the branches have caught fire and retreated into a hook
position called the shepherd's crook. The bark at the base of the infected
twigs is sunken and cracked and forms oozing canker visited by bees. Fire blight is spread from plant to plant by
rain, wind or pruning tools. It survives the winters in cankers and branches
and thrives when conditions are right. The
service berry diagnostic site is found at the following address. http://www.extension.umn.edu/garden/diagnose/plant/deciduous/serviceberry/
Rabbits like to eat the bark of fruit trees in winter. Their teeth cut through the branches at clean 45-degree angle. The branch may not survive if most the bark is cut around the branch. The following site will explain some of the exclusion methods to prevent this damage next winter.http://www.extension.umn.edu/garden/yard-garden/wildlife/rabbits-and-trees-and-shrubs/