When To Plant Garlic In Spokane

The best time to plant garlic in Spokane is in the fall, typically from late September through mid-October.
 
This timing is crucial because garlic needs a period of cold dormancy to develop those big, flavorful bulbs you’re after.
 
When you plant garlic in Spokane during this window, you give the cloves enough time to establish roots before the ground freezes solid.
 
In this post, we’ll break down exactly when to plant garlic in Spokane, how to prepare your soil, and what you need to do to get a great harvest next summer.
 
Let’s dig in and get your garlic bed ready.

When to Plant Garlic in Spokane: The Fall Window

The timing for when to plant garlic in Spokane is all about working with the local climate.
 
Spokane sits in USDA hardiness zone 6a, which means cold winters and a growing season that starts late and ends early.
 
Because of this, the ideal time to plant garlic in Spokane is about four to six weeks before the ground freezes.
 
That sweet spot usually lands between late September and mid-October.
 
You want the soil temperature to be around 50°F at planting depth.
 
If you plant garlic in Spokane too early, the cloves might sprout above ground before winter, which can damage them.
 
If you plant too late, roots won’t develop enough, and the bulbs will be small and sad the following year.

1. Why Fall Planting Works Best

The reason you plant garlic in Spokane in the fall is simple: it’s a cold-hardy crop that thrives on a natural chill.
 
When garlic cloves sit in cold soil, they go through vernalization, which is basically a signal that tells the plant to form bulbs.
 
Without this cold period, you won’t get nice, divided bulbs, just a single round clove.
 
So by planting in October, you’re setting the stage for a much better harvest.
 
The roots will grow slowly in the fall, then go dormant, and then wake up strong in early spring.

2. Soil Temperature Is Your Guide

A soil thermometer is your best friend when you’re deciding when to plant garlic in Spokane.
 
You want to check the soil temperature at about 6 inches deep around late September.
 
If it’s still above 60°F, hold off for a week or two.
 
If it’s hovering around 50°F, that’s your green light.
 
Once the soil dips below 45°F, you’ve missed the window because the roots won’t establish properly.
 
So keep an eye on the forecast and grab those gloves when the time feels right.

3. A Quick Note on Spring Planting

You might be wondering if you can plant garlic in Spokane in the spring instead.
 
Technically, you can, but the results are usually disappointing.
 
Spring-planted garlic doesn’t get enough cold time to form large bulbs.
 
You’ll end up with smaller cloves and a shorter growing period before the summer heat hits.
 
If you missed the fall window, you can still try, but just know that your harvest will likely be smaller.
 
For the best results, mark your calendar for early October and stick to that plan.

How to Plant Garlic in Spokane for the Best Results

Now that you know when to plant garlic in Spokane, let’s talk about how to do it right.
 
The process isn’t hard, but it does require a little attention to detail.
 
Start by choosing the right variety, like hardneck garlic, which does well in cold climates like Spokane.
 
Then, pick a spot with full sun and well-draining soil.
 
Garlic hates sitting in water, so raised beds or amended soil are a great idea.
 
Work in some compost and a balanced fertilizer a few weeks before you plant.
 
Then, break apart your garlic bulbs into individual cloves, keeping the skin on.
 
Plant each clove about 2 inches deep, with the pointy end facing up.
 
Space them 6 inches apart, in rows that are a foot apart.
 
After planting, water them in well, and then cover the bed with a thick layer of mulch.

1. Mulching Is a Must

The mulch acts like a cozy blanket for your garlic over the harsh Spokane winter.
 
Straw, shredded leaves, or grass clippings all work great.
 
You want about 4 to 6 inches of mulch to keep the soil temperature stable.
 
This prevents the freeze-thaw cycles that can push cloves out of the ground.
 
Come spring, you’ll see green shoots poking through the mulch, and that’s a beautiful sight.

2. Watering and Care Through Fall

Right after you plant garlic in Spokane, keep the soil consistently moist, but not waterlogged.
 
Once the ground starts to freeze, you can stop watering entirely.
 
The garlic will just sleep through the winter, waiting for spring rains to wake it up.
 
Don’t bother with fertilizer in the fall either, the cloves have enough energy to get started.
 
Save your feeding for early spring when the plants are actively growing.

Common Mistakes to Avoid When Planting Garlic in Spokane

Even if you nail the timing for when to plant garlic in Spokane, a few simple errors can ruin your crop.
 
Avoid these pitfalls and your garlic will thank you.
 
First, don’t use garlic from the grocery store, as it’s often treated to prevent sprouting.
 
Instead, buy seed garlic from a local nursery or an online supplier.
 
Second, don’t plant in a spot that gets waterlogged after heavy rain or snowmelt.
 
Third, don’t skip the mulch, as a bare bed is much more likely to suffer winter damage.
 
Fourth, don’t plant too shallow, because cloves need that 2-inch depth to stay insulated.
 
And finally, don’t plant too late in November, as the roots simply won’t have time to grow.

1. Choosing the Right Garlic Variety

Hardneck garlic varieties like Rocambole, Porcelain, and Purple Stripe are perfect for Spokane.
 
They produce larger cloves and handle cold winters much better than softneck types.
 
Softneck garlic can work in milder spots, but it often struggles in Spokane’s deep freezes.
 
So when you’re planning when to plant garlic in Spokane, also plan on sourcing hardneck seed stock.
 
Local farmers markets are a great place to find acclimated varieties.

So, When to Plant Garlic in Spokane?

When to plant garlic in Spokane is in the fall, specifically from late September to mid-October.
 
This timing allows the cloves to establish roots and go through the cold vernalization they need.
 
You can plant garlic in Spokane in the spring, but you’ll trade that for a much smaller harvest.
 
So aim for that early October window, prep your soil, and add a thick layer of mulch.
 
With a little patience and the right timing, you’ll be pulling up big, beautiful bulbs next July.
 
Happy planting in the Inland Northwest, and may your garden be full of pungent, delicious garlic.