Do you want to grow allium in Washington , but do n’t hump when to plant them ?
Planting genus Allium is not as well-fixed as it seems .
Here ’s why :

So if you establish them outdoors too early in the fall they will die . And if you embed them too of late , your allium wo n’t bring about a bloom .
Today , I ’m go to teach you the idealistic time to plant allium in Washington :
When to Plant Allium in Washington
As you may have already guessed , you need to pay very cheeseparing attention to your local weather condition in the fall . Specifically , you are go to need to ascertain when the last frost occurs .
In general , when there has n’t been a frost for two hebdomad , you are SAFE to plant your genus Allium outside in Washington !
For your mention , I have created this tabular array for average frost dates for most major urban center in Washington . If your city is not list below you’re able to find its Last & First Frost DatesHERE .

Washington Last & First Frost Dates
regrettably , Mother Nature wreak cruel antic on us every year .
It should be note that the above date are just averages .
There are year when the last frost comesMUCHlater . Sometimes , the last icing happens much earlier and you may get your allium embed outside in Washington much quicker .

Like I say before , you need to be very persevering in see your local conditions .
So what happens if a frost comes AFTER you plant your allium ?
When you have it away a frost is coming you necessitate to take action .
Also , check that not to institute your allium in your garden too recently .
When Should You Start Your Allium Seeds Indoors?
Depending on the type of allium , it takes roughly 21 day to grow genus Allium from source indoors and then transplant them to your garden . And then another 360 day to bloom !
For aspecific datethat you should commence allium seeds indoors you should :
Not only this , but I advocate again paying close attention to your local conditions report .
It should also be note that the best proficiency for get your allium plants outside is to introduce them ( in their spate ) outside for an hr . And then increase the amount of time they spend outside each day by an hour until they have been alfresco for 8 hours .
This will “ inure ” your allium plant , increasing its chances of fighting off disease , insects , droughts , and sozzled conditions .
If you want to learnWHENto plantANYFlower in Washington , point over toHEREand just eccentric in the efflorescence you desire to grow .