When To Plant Cilantro Seeds In Oregon

The best time to plant cilantro seeds in Oregon is in early spring or late summer, depending on your region.
 
Cilantro is a cool-season herb, so when you plant cilantro seeds in Oregon, timing matters more than almost anything else.
 
If you plant too late in spring, the heat will make your cilantro bolt and go to seed before you get a good harvest.
 
In this post, we’ll look at when to plant cilantro seeds in Oregon, how the state’s varied climate affects planting times, and tips to keep your cilantro productive.
 
Let’s dig in.
 

When to Plant Cilantro Seeds in Oregon

When you plant cilantro seeds in Oregon, you generally want to sow them in early spring or late summer.
 
Cilantro thrives in temperatures between 50°F and 85°F, and Oregon’s mild climate is actually perfect for it during the right windows.
 
The key is avoiding the hottest part of summer, because cilantro bolts quickly once temperatures climb above 85°F.
 
Here are the best planting windows depending on where you live in Oregon.
 

1. Early Spring for the Willamette Valley

If you live in the Willamette Valley, plant cilantro seeds in Oregon from late March through May.
 
The valley’s cool, wet spring gives cilantro seeds plenty of moisture to germinate.
 
You can start sowing as soon as the soil reaches about 50°F.
 
Many gardeners in Portland, Salem, and Eugene plant cilantro seeds in Oregon in March for an early summer harvest.
 

2. Late Summer for a Fall Crop

When you plant cilantro seeds in Oregon in late August or early September, you get a second harvest before the first frost.
 
This late-season planting avoids the summer heat that causes bolting.
 
The cooler fall temperatures let the leaves stay tender and flavorful.
 
In western Oregon, this fall crop often outperforms the spring one.
 

3. Coastal Oregon Planting Times

Along the coast, you can plant cilantro seeds in Oregon almost any time from March to September.
 
Coastal temperatures stay mild, so cilantro doesn’t bolt as fast there.
 
Gardeners in Astoria, Newport, and Coos Bay have a longer window for planting cilantro seeds in Oregon than inland growers.
 
Just watch for too much rain, which can rot seeds in soggy soil.
 

4. Eastern Oregon Planting Times

In eastern Oregon, plant cilantro seeds in Oregon from April to early June.
 
The high desert climate means hot, dry summers, so an early start is essential here.
 
You can also plant cilantro seeds in Oregon again in late August for a quick fall crop before the cold sets in.
 
Using shade cloth in summer helps extend the harvest in places like Bend and Pendleton.
 

How to Plant Cilantro Seeds in Oregon Successfully

Knowing when to plant cilantro seeds in Oregon is half the battle, but how you plant them matters too.
 
Cilantro seeds are actually two seeds inside one husk, so they germinate better when you split them first.
 
Sow seeds about a quarter-inch deep and keep the soil consistently moist.
 
When you plant cilantro seeds in Oregon, choose a spot with morning sun and afternoon shade.
 

1. Succession Planting Keeps You in Cilantro

If you plant cilantro seeds in Oregon every three weeks, you’ll never run out of fresh leaves.
 
This stagger approach means when one batch bolts, the next is ready to pick.
 
Succession planting is the trick that keeps cilantro coming all season.
 

2. Water Consistently but Don’t Soak

Cilantro likes moist soil, but waterlogged roots will kill it fast.
 
When you plant cilantro seeds in Oregon, make sure your beds drain well.
 
Oregon’s spring rains often do the watering for you, so hold back on the hose.
 

3. Harvest Often to Delay Bolting

Frequent harvesting encourages cilantro to keep producing leaves instead of seeds.
 
Snip the outer leaves first and let the center keep growing.
 
If you plant cilantro seeds in Oregon and harvest regularly, you’ll stretch your season by weeks.
 

Common Mistakes When You Plant Cilantro Seeds in Oregon

Even seasoned gardeners make mistakes when they plant cilantro seeds in Oregon.
 
The biggest one is planting too late in spring and watching everything bolt in July.
 
Another mistake is not amending Oregon’s clay-heavy soil with compost.
 
And forgetting to succession plant means a short harvest window.
 
Avoid these and your cilantro will thrive.
 

1. Planting in Full Afternoon Sun

When you plant cilantro seeds in Oregon, full afternoon sun is a recipe for bolting.
 
Pick a spot that gets shade during the hottest part of the day.
 

2. Letting the Soil Dry Out

Cilantro seeds need consistent moisture to sprout.
 
If the top inch of soil dries out, germination stops.
 
When you plant cilantro seeds in Oregon, water lightly every day until seedlings appear.
 

So, When to Plant Cilantro Seeds in Oregon?

The best time to plant cilantro seeds in Oregon is in early spring or late summer.
 
Cilantro is a cool-season herb, so timing your planting around Oregon’s mild weather is the key to a great harvest.
 
Whether you’re in the Willamette Valley, along the coast, or out in eastern Oregon, planting cilantro seeds in Oregon at the right time makes all the difference.
 
Plant early, plant late, and succession plant in between, and you’ll enjoy fresh cilantro all season long.