CHRYSANTHEMUM GROWERS CALENDAR CULTURAL NOTES
FOR NOVEMBER AND DECEMBER |
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It is interesting to read back over the
cultural notes from other authors and identify the common elements as
well as the changes that have occurred. There is one factor that is
common to all recommendations for November/ December - Do not fertilize
in the early stages as your aim must be to get strong, sturdy plants,
not tall spindly ones. Your cuttings should be looking healthy and sturdy.
Don't be afraid to give them more sunlight to harden them before planting
on to the 5" pots. To check that your cuttings in the 3" pots are ready
simply remove the plant from the pot. If you can see a good ball of
roots with plenty of white tips at the edge of the soil, it is time
to plant on. Do not rush this process. Planting on without a good root
system can inhibit / check growth. When December arrives and you think
it is time to plant on to the final pots (or in the ground) follow the
same procedure to ensure that the plant has a good root system. Again,
do not rush into the planting on process. You can make the first break
in December before planting on if you consider the root system is not
developed enough. From my experience it is advisable to have the plant
in its final growing location (pot or ground) by mid December. What
about the soil / potting mix? You will recall in the September/October
notes that colleague Joe Woodings advised that it is better to have
your mix ready in plenty of time so that you can check the pH (6 - 6.5).
Remember that it is better to have the pH higher rather than lower.
In the normal breaking down of the mix or soil PH will be lowered. The
use of pesticide can also have the same effect. There are good general
commercial mixes available, but make sure that the PH is right and that
you add the appropriate rate of fertilizer. I like to add some slow
release (e.g. Osmocote) to the potting mix. I believe it helps to balance
your feeding program. Feeding your plants can be done with dry liquid
or alternate applications of both types of fertilizer. During this growth
period feeding must occur at least once each week. Some growers prefer
to feed twice weekly with half strength liquid fertilizer (e.g. Thrive,
Aqua Sol or similar mix). Later notes will advise you of a change to
fertilizer mixes around late January to early February (e.g. Phostrogen).
Watering of chrysanthemums is a skill. Even when planting on do not
over water them. Watering plants the day before planting on assists
greatly. As the weather warms up watch the plants carefully, but keep
them on the dry side to encourage roots to move into the new mix in
search of water and food. A good sign of the need to water is to watch
for the top leaves drooping slightly in the morning. Now to that all
important stopping in December. I'll refer to this as the first stop
as we usually grow on to second crown buds in Western Australia. Growers
usually have their own chart of stopping times for each cultivar. In
general terms exhibition blooms are stopped earlier with other classes
following. Most cultivars should be stopped by mid December if a natural
break has not occurred. Care should be taken with pinching done in the
morning and manipulating growing laterals done when it is warmer. Reference
to other growers can help those new to the chrysanthemum growing game
with stopping dates for the different cultivars. It is also important
at this early stage to keep extra laterals in reserve To hold the growing
laterals in place staking must be done from the 5" pot stage with stakes
placed around the final pots to support the growing laterals. Spraying
regularly is vital to keep the nasties under control. A word of warning
is necessary with regard to white rust on chrysanthemums. It is present
in W.A, and can be controlled effectively. There is some wisdom in varying
your sprays during the growing season. I have not made reference to
growing in shade or in the open. Pots are useful as they can be turned
to promote even growth. In very hot weather some shelter may be an advantage.
You certainly need to plan your protection for the blooms later in the
season. A good mulch is also beneficial with some growers swearing by
the use of cow manure in the mulch mix. Hopefully these random notes
will serve to remind you of the need for ongoing care. You should have
your plants strong and healthy and ready for the all important second
break in January. |