Can I aerate this time of year?
Yes, ideally a solid tine only. This will still allow oxygen into the profile while not causing the lawn too much damage. This time of year it will struggle to recover from any damage done in the process, like mechanical or traffic damage done by us stomping all over it. Hollow tines will pull too much of the lawn out, thinning it resulting in a muddier result.
Do I need to wait to do a soil test?
No, the soil doesn’t change too quickly without us doing anything. Therefore, now is the perfect time to get a test done, it gives enough time for the sample to be sent, analysed and reviewed for a spring renovation. Spring renovation is also one of the most ideal times to apply any soil amendments that aren’t part the regular routine.
Can I use “X” product this time of year?
It depends!! I know, I know, but honestly it does. A lot of our usual recommendations have been turned on their heads this year, as mother nature seems to be on holiday somewhere. The biggest recommendation of which is usually not to utilise a wetting agent during winter, as we don’t want the water holding capacity in the profile. As well we haven’t had a whole heap of rain in Geelong just yet, we are still recommending people to use a wetting agent and keep watering to try and keep some health. Even though it's not going to be a full summer watering rates keeping some moisture in the soil is still beneficial as it will help with foliar fertiliser and herbicide uptake (if you use the right one). It might sound strange, moisture helps maintain some thermal mass of the soil, stabilising the temperature and reducing the cold stress on the lawn
What are Growing Degree Days?
If you are a lot further up than us, (Qld, NT, and Northern WA I'm referring at you), you're rapidly entering the period where growth regulators can help. Everyone else, hold tight; your time is coming. Growing degree days (GDD) track heat for plant growth. Imagine a temperature threshold - that's the minimum warmth a plant needs to develop. warm season grasses that's 10 degrees C, for cool season grasses that's 0 degrees C. GDD adds up the daily average temperatures above that threshold. The more GDDs, the closer the plant is to maturity. This is particularly useful in turf management to estimate the growth stages of grass and to schedule management practices such as fertilisation, irrigation, mowing, and pest control. The reason we are mentioning this now is that a quick check on the Syngenta GDD calculator is that Mackay is already at 300 GDD for the month, while here in Geelong we are at 30 GDD for warm-season grasses.