These big weeds are common on the side of roads all over California. Kill the weed.
I sympathize if you are an allergy sufferer. But actually California native oaks are far more numerous, and they are prolific pollen producers at the same time in the spring as the Acacias.
What was pointed out to me by a California MD allergy specialist, is that people think they are allergic to Acacia when in fact it is the oak pollen that is often the primary antagonist.
What are we going to do, kill all the native oaks too?
There are preventive health care measures that can help you to overcome sensitivity to allergens.
I use Traditional Chinese Medicine, herbs and acupuncture as my primary health care system. I used to have allergies to grass pollen but don't since using TCM, and I haven't had a cold or flu in over 30 years.
Please don't kill all the acacias, they are beautiful when they bloom in early spring.
I was told this tree is rare. It is growing in Gosnells Western Australia. I have a young sapling that was dug out from next to the original tree. I have provided photos of. It is alive but was told to leave in a pot for at least 18 months before planting. The person who gave it to me also has Wisteria Tree, that I have as well but mine has never flowered and is about 15- 18 years old but would like to know, if competition from surrounding mature gum trees is robbing it of light and nutrients. It is about 5 metres tall and healthy. Hopefully we can have my tree identified ! Thank you Dianne ????
As for the Wisteria... It is most likely due to the competition around it. This article will give you information on the care of these: https://www.gardeningknowhow.com/ornamental/vines/wisteria/growing-wisteria-proper-wisteria-vine-care.htm
This is a type of Acacia Tree. These are quite invasive here in the U.S. They take over and kill out naturalized trees here. Many have thorns, and many do not.
This article will give you information on the care of these: https://www.gardeningknowhow.com/ornamental/trees/acacia/acacia-tree-types.htm
We have a very tall but spindly twisted acacia tree must be about 20 years old now and when is the best time to prune and how hard can we do it?
With what you describe, tall and splindly, it may be wise to prune as soon as possible in order to avoid potential wind damage -breakage in winter. If the tree is staked or otherwise protected from high winds and snow/ice loads, there is some advantage to waiting until spring when the new growth will come soon after pruning.
Don't cut too hard. Limit the crown reduction pruning to no more than 25% of the total foliage to be removed in a one or two year period of time. Otherwise there is too much physiological stress of leaf loss for photosynthesis of sugars to nourish the plant, and heavy pruning creates an adverse heavy growth response that is ugly and creates more maintenance.
Pictures of some wattles would be greatly appreciated
Although many are native to Australia and called wattles, some acacias are native to Florida. There is a photo of sweet acacia on this Florida University fact sheet.
I have an L shaped raised garden bed where one side is fine but the other section is always damp. It’s about a year old and I had planted Acacia Limelights but they have recently died. I also have a few Leucodendron (Jolly Jokers) that are not happy. I’m not sure if it’s a drainage problem or not. Could I possibly add Vermiculite to the soil to aerate it or would you suggest something else? I really don’t want to have replace the soil! Thank you, Barbara.
Usually something like peat moss or compost is added to soil to improve the drainage. The Acacia Limelight needs well-draining soil so that might have been why it succumbed. Make sure you are choosing plants that need part-sun since this is a morning sun situation. Here is an article about amendments to improve drainage:
The varieities of Acacia seeds
You will have to consult the person that you got the seeds from. Pinning down any Acacia will be a monumental task, unless you have access to genetic sequencing. My best guess is A. spectabilis, though.
This is my photo of it
No. Acers include maple trees as well as Japanese maples. The foliage in your photos is more palm-like.