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Last spring the thuja in my cottage garden started to dry out. I didn’t know what they were lacking and I was quite desperate about it, because this problem hadn’t appeared for me in previous years. I tried this spray on the recommendation of my colleague and good friend.
He told me that thuja are most often troubled by a lack of magnesium and that they therefore lose color and wither.
The solution he recommended was bitter salt. I bought Epsom salt – it can also be bought at garden centers – ask for bitter salt and they will certainly advise you.
I made a weaker solution to start with:
I dissolved 200 g of salt in 10 liters of water and sprayed the thuja thoroughly. And I accidentally sprayed the neighbor’s thuja too – they are right next to our fence, so I just hoped it would turn out well.
When we came to the cottage a few days later, I immediately saw a change – the problem had stopped, it didn’t spread at all and it seemed to me that the thuja looked nicer. And the biggest win was that the neighbor’s thuja that I had sprayed on that side had a nicer, more vivid color.
This spray is therefore recommended if you want a nicer green color for your conifers.
When I confirmed that the spray works, I went for a slightly stronger solution using 500 g of salt and the same amount of water. I also applied the spray to the lawn and it is excellent against pests as well. Bitter salt for the garden can be easily obtained and is also inexpensive; try asking at a garden center, but that’s my experience.
