Are you growing cosmos in Washington, but don’t know when they’ll bloom?
Getting your Cosmos to bloom is not as easy as it seems.
- Cosmos have a small window when they bloom and still look great.
So if they bloom too early they may die or not last as long. And if they bloom too late they may have small blooms that don’t last long.
Today, I’m going to teach you the ideal time for cosmos to bloom in Washington:
- To Learn More About HOW to Grow Cosmos, Check Out This GUIDE!
When Do Cosmos Bloom in Washington?
As you may have already guessed, there are two main factors that determine when Cosmos will bloom: where your Cosmos are planted & weather (time).
Bloom Time Depends on Where Your Cosmos Are Planted!!!
When your Cosmos will bloom will depend on exactly where it is planted in your yard or garden
In general, expect the following:
- If a cosmos is planted in an area of your yard that receives full sun it will bloom around the same time every year or up to two weeks early due to warm weather and extra sunlight.
- If a cosmos is planted in an area of your yard that received partial sun it will bloom around the same time every year.
- If a cosmos is planted in an area of your yard that receives shade and is not protected from wind or rain it will bloom anywhere from 1 to 3 weeks later than its average time.
Washington Last & First Frost Dates
For your reference, I have created this table for average frost dates for most major cities in Washington. If your city is not listed below you can find its Last & First Frost Dates HERE.
Bloom Time Depends on the weather!
In general, cosmos will bloom:
- 3 months after starting cosmos from seed
- 75 days after planting cosmos in your yard
If you want to learn WHEN ANY Flower will bloom in Washington, head over to HERE and just type in the flower you want to grow.