ADVERTISEMENT
10 herbs you should NEVER plant near rosemary
5. The Allelopathic Effects of Sage
Sage is another Mediterranean herb that shares similar growing conditions with rosemary. However, sage is known for its allelopathic properties, meaning it can release chemicals that inhibit the growth of nearby plants. While rosemary is somewhat resistant to these effects, planting them too close together can still lead to reduced growth and vigor.
To prevent potential allelopathic interactions, it’s advisable to give sage and rosemary plenty of space in the garden, ensuring that each plant has room to thrive without affecting the other.
6. Why Dill Should Be Kept Away from Rosemary
Dill is an herb that prefers cooler temperatures and more moisture than rosemary. It can also grow quite tall, reaching heights of up to 3 feet, which can overshadow rosemary and compete for sunlight. Additionally, dill’s feathery foliage can create a dense canopy, limiting air circulation around rosemary and increasing the risk of fungal infections.
To keep both herbs healthy, plant dill in a separate area of the garden where it can enjoy the cooler, moister conditions it prefers.
7. The Competitive Nature of Fennel
Fennel is a robust herb that can reach heights of up to 6 feet. It has a deep taproot system that can compete with rosemary for nutrients and water. Additionally, fennel is known for its allelopathic properties, which can inhibit the growth of nearby plants, including rosemary.
To avoid these issues, it’s best to plant fennel in a separate area of the garden where it won’t interfere with rosemary or other herbs.
8. How Thyme Can Overcrowd Rosemary
Thyme is a low-growing herb that spreads quickly, forming dense mats that can crowd out other plants. While thyme and rosemary share similar growing conditions, thyme’s aggressive growth habit can lead to competition for space and nutrients.
To prevent thyme from overtaking rosemary, ensure that each plant has adequate space to grow. Consider using barriers or planting thyme in containers to keep it contained.
9. The Incompatibility of Parsley with Rosemary
Parsley is a biennial herb that prefers cooler, moister conditions than rosemary. It can grow up to 2 feet tall, potentially overshadowing rosemary and competing for sunlight. Additionally, parsley’s need for frequent watering can create overly damp conditions for rosemary, increasing the risk of root rot.
To keep both herbs healthy, plant parsley in a separate area of the garden where its watering needs can be met without affecting rosemary.
