Thuja should be planted in places free from other plants, where its powerful root system will not create problems for neighbors on the site.
We will tell you which plants it is strictly forbidden to plant thuja next to.
Firstly, heather and hydrangea cannot be planted next to thuja. Thuja prefers dry soil, heather and hydrangea – moist soil.
Secondly, juniper. Yes, these are related crops, but their requirements for lighting and soil are different.
Thirdly, there should be no ivy near the thujas. It will entwine and shade the thujas.
Fourthly, rhododendron. This plant needs acidic soil, while thuja prefers neutral or slightly alkaline soil.
In addition, you should not plant bulbous flowers (daffodils, tulips, hyacinths) next to thuja. Thuja will suppress their growth.
For reference
Thuja is a genus of gymnospermous coniferous plants of the Cypress family.