GARDEN
MATT’S GARDENING COLUMN JULY 2019
Feeling chilly on these past winter mornings? We as active gardeners certainly feel it. Well what about our plants. As the temperatures drop quite low at night this increases the chance of our loved plants in our gardens suffering in the cold. There are several types of protection we can do to limit this exposure due to the chance of frost burning or cutting through our gardens. Whether they are newly planted young plants or even those suited to warmer climates it is important to be checking those early freezes that most of our gardens here may experience. Providing a shelter to these plants can be relatively easy using frost protection cloth. This fabric cloth can maximise effect should be wrapped over the top of our plants especially where our new growth that hasn’t hardened off yet and needs this insulation from the freezing temperatures. If we encase our fabric cloth right down to the ground by the sides of our plants, it may slow down the heat loss as daytime temperatures remain trapped within. This will trap the warmth from the ground and then maintain a more even temperature within our tent. A good and easy way to protect most of our plants in the big freeze.
Placing heat reservoirs such as clay house bricks, or even rocks next to our plants will heat up during the day and as the temperatures drops of a night-time, the heat reserve may assist in keeping more heat within our tent like structure.
There are foliar sprays available such as Envy that are applied to all parts of our plant provides a good protective barrier that shields the extreme cold from freezing our foliage especially well. This can increase tolerances to frost up to -4 degrees. This type of protection is very useful though can be limited. With any sort of new growth, it must be sprayed to ensure all round protection during the frost season. Applying a thicker layer of mulches to insulate the surrounding ground and surface roots will offer more protection in cold period. Ensure not to place mulches up against trunks of our plants though leave a gap between so that it doesn’t incubate nasty bugs or disease.
Other types of plant protection may include prior to freezing temperatures rolling in are applying Seasol at twice the recommended rate repeating fortnightly during the winter. This can reduce the plants cells freezing point to -5c. As well a foliar spray of silica applied to drip effect can build up a plant’s resistance to extremely cold weather. It offers an increase in strength and overall health of our plants. Most plants if in a good state of health leading into winter are more robust and maybe able to survive with minimal damage under variable temperatures.
Though if frost damage has happened to our plants, leave the affected burnt plant tissue on the plant until the chance of frost has ended. Although not pretty to look at this damage maybe used as a protection for the rest of our plant from further damage. Remove only once temperatures have increased again in the new growing season, Springtime.
Another avenue of protection is to plant into pots, during the cold season, meaning that if temperatures drop quickly we can take our plants into a more protected climate such as greenhouse or even closer to the house or patio. Then once
temperatures of a night start to increase we can think about transplanting back into our gardens. Watering needs for gardens or pots will decrease especially as daytime temperatures will be lower than most of the year. As to the timing of watering, try to limit afternoon watering, early morning is much more preferred by our gardens. This allows garden beds or pots to drain away excess water before night time temperatures cool off.
Keep Growing
Matt Gow