Still, whatever the medium, this plant grows best in dry, well-drained conditions.
Water
Once established, common yarrow is drought-tolerant.
Frequent, light waterings will only be needed to encourage germination and to mature small seedlings.
The Spruce / Adrienne Legault
After that, only a 1/2 inch of water weekly is needed to maintain growth.
Yarrow does not like cold drafts or temperatures near freezing.
Fertilizer
Yarrow plants are low-maintenance when it comes to feeding.
The Spruce / Adrienne Legault
An annual side-dressing withcompostin the spring should be enough to last throughout the season.
Habitual pruning will also help keep the plant in check by preventing self-sowing.
Propagating Common Yarrow
In ideal growing conditions, yarrow spreads rapidly and sometimes aggressively.
The Spruce / Adrienne Legault
For this reason, it’s best to divide the plant every two to three years or as needed.
In approximately 120 days (three months), your plant will bear breathtaking blooms.
Here’s how to plant yarrow from seed.
The Spruce / Adrienne Legault
Potting and Repotting Common Yarrow
Common yarrow grows tallsome varieties can reach up to 40 inches.
Yarrow grows best in a porous clay or terracotta pot that drains and dries easily.
Any standard potting soil will do, but check that it contains perlite for good drainage.
The Spruce / Adrienne Legault
Water the pot thoroughly and allow it to drain, and then place it in a sunny patio location.
Once established, verify the soil dries out completely between waterings.
Spittlebugs can also move into a patch of yarrow.
This infestation will present as specks of “spit” on the plants.
This will expose the bugs to the sun, eventually killing them.
Ample sunlight and near-perfect soil conditions will assure a successful bloom.
Once the plant starts blooming, constant deadheading will keep it in a continual state of color.
To avoid this, always plant yarrow in well-drained soil and stick to the suggested watering schedule.
Avoid watering this plant during periods of rain.
When grown in gardens without direct sunlight, yarrow stalks may become long and need staking.
That said, it is next to impossible to stake a proliferate patch of yarrow.
In that instance, all you’re free to do is let it flop to the ground.
The biggest difference in the two plants lies in their leaves.
This plant also attracts pollinators, making your garden a bee and butterfly haven.
Common Yarrow: Achillea Millefolium (Asterales: Asteraceae): Invasive Plant Atlas of the United States.Invasiveplantatlas.Org
Yarrow.ASPCA
