It is easily identified by its feathery foliage and flattened flower clusters.
you’ve got the option to plant yarrow in spring and enjoy it asa long-blooming perennial.
Just keep in mind that this species is toxic to pets.
The Spruce / Adrienne Legault
A tough plant with a tendency to spread byrhizomes, yarrow may even naturalize in your yard.
The best time to plant or transplant yarrow is in spring.
Warning
Yarrow plants can beinvasivein the right conditions.Plant with caution.
The Spruce / Adrienne Legault
If yarrow is an aggressive grower for you, deadhead the flowers before they go to seed.
Soil
Good drainage is all yarrow asks for.
It will tolerate clay soil better than many plants, but it grows best with good drainage.
The Spruce / Adrienne Legault
It flourishes in multiple soil types and isn’t a heavy feeder.
Water
Once established, yarrow is drought-tolerant.
It is cold-hardy and can take heat well enough to grow in zone 9.
The Spruce / Adrienne Legault
Fertilizer
Yarrow plants don’t require great soil fertility.
An annual dose ofcompostin the spring will invigorate the plant but is not necessary.
In fact, if you are worried about it spreading out of control, withhold fertilizer from it altogether.
This reduction in plant height will help avoid excessive flopping and the consequent need for staking.
How to Grow Yarrow From Seed
you could also grow yarrow from seed.
Yarrow isn’t a heavy feeder; it may actually bloom better in poor soil.
The effect of fertilizing is usually an increase in foliage and an enhanced tendency to spread.
If left alone, yarrow should have no trouble blooming.
This will keep the plant blooming longer.
Common Plant Diseases
Yarrow’s aromatic leaves discourage animal pests from attacking it for the most part.
However, this perennial is susceptible to a few fungal plant diseases.
The spots can be black, brown, gray, or red.
The good news is that it’s rarely fatal.
In fact, this fungal disease is not serious enough to warrant spraying.
Yarrow repels unwanted insects, attracts pollinators, and can improve soil structure with its long roots.
These low-to-the-ground plants may find themselves without any access to sunlight.
Yarrow flowers have long, sturdy stems, and you might find the flowers in many colors.
They make a great filler in an arrangement.
United States Department of Agriculture.