While it is true that the root systems of the Black Walnut are allelopathic, secreting a natural toxin to control the competition from other plants, there are certain plants that are not effected by these toxins. Arborvitae (thuga spp.) are one of them.
While it is true that the root systems of the Black Walnut are allelopathic, secreting a natural toxin to control the competition from other plants, there are certain plants that are not effected by these toxins. Arborvitae (thuga spp.) are one of them. If the yellowing is on the insides of the foliage, then this is a normal occurance for all evergreens,especially if they are in some transplant shock. If the yellowing is on the ends of the branches, then they may be going into moderates transplant shock or they were damaged by winter dessication from the harsh winter we just went through. I would suggest in either case that they be fertilized with a low nitrogen fertilizer containing a beneficial fungus called mycorrhizae. These fungi attach to the fine roots of the plants and aid in enhancing water and nutrient absorbtion, allowing the plant to recover more rapidly from any type of damage and helping to establish a more efficient root system. Also, you need to watch the amount of wate
Related Questions
- While it is true that the root systems of the Black Walnut are allelopathic, secreting a natural toxin to control the competition from other plants, there are certain plants that are not effected by these toxins. Arborvitae (thuga spp.) are one of them.
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