Achillea Chamaemelifolia

Andorran milfoil is a herbaceous perennial that favors sunny environments and originates in open habitats, commonly occurring in meadows and grasslands. It prefers full sun but can also tolerate partial sun.

Andorran milfoil typically relies on natural rainfall and requires minimal additional watering. However, during dry spells when less than 2.5 cm (1 inch) of rain falls in a week, you should provide extra water. Be cautious not to overwater, as too much moisture can cause unattractive growth. To prevent root rot, ensure the plant is in well-drained soil.

Andorran milfoil can adjust to a broad range of temperatures, though its distribution can still be constrained by different combinations of water and heat. It does best in warm summer climates when there is sufficient rainfall or irrigation. Extended periods of cloudy, rainy weather, as well as prolonged high temperatures, can raise the chance of Andorran milfoil dying. In winter, protecting it from cold can increase its likelihood of surviving.

The best time to fertilize Andorran milfoil is in early spring, as it comes out of dormancy and starts active growth. Fertilization supplies essential nutrients for healthy development. Although Andorran milfoil has relatively low fertilizer requirements, applying fertilizer annually can improve its survival and encourage better, longer-lasting flowers.

In late spring, prune any overgrown stems of Andorran milfoil to prevent them from falling. During hot and rainy summers, remove any yellowing lower leaves. After the plant has flowered, cut off the withered stalks. In the fall, trim away dead stems and leaves to encourage resprouting the following year.