When Do Black Walnuts Fall From The Tree

Black walnuts fall from the tree in late summer through autumn, typically between September and October, depending on your location.
 
If you’ve ever wondered when do black walnuts fall from the tree, the short answer is that they start dropping once the husks turn from green to yellow and eventually black.
 
This usually happens after the nuts have fully matured on the branch, and the tree naturally releases them to make way for the next season.
 
In this post, we’ll walk through the exact timing of when black walnuts fall from the tree, what triggers the drop, and how you can tell they’re ready.
 

When Do Black Walnuts Fall From the Tree?

Black walnuts fall from the tree in late summer to early fall, and the timing depends on your climate and the tree’s specific variety.
 
Here in the Midwest, I usually see the first black walnuts hitting the ground around mid-September.
 
Down South, when black walnuts fall from the tree can start as early as late August.
 
Up North, you might not see them drop until early October.
 
The key is that black walnuts fall from the tree only after the nuts are fully mature inside their husks.
 

1. The Husk Color Tells You When Black Walnuts Will Fall

When black walnuts are getting ready to fall from the tree, the outer husk changes color.
 
It goes from a bright, healthy green to a yellowish-green, and then finally to a dark, mushy black.
 
That’s your signal that black walnuts are about to fall from the tree.
 
Once the husk turns black, the nut inside is mature and ready to be collected.
 

2. Weather Triggers the Drop

A good rainstorm or a windy day often speeds up when black walnuts fall from the tree.
 
The moisture softens the husks, and the wind shakes the branches loose.
 
If you’re waiting for black walnuts to fall from the tree, pay attention to the forecast.
 
After a heavy rain in early fall, you’ll usually find a pile of them under the canopy.
 

3. Frost Can End the Season

Once a hard frost hits, the remaining black walnuts fall from the tree pretty quickly.
 
The cold damages the husks and the tree lets go of the last nuts.
 
So if you haven’t gathered them by the first freeze, you’ll likely see the rest of the black walnuts fall from the tree right after.
 

How to Tell When Black Walnuts Are Ready to Fall

You can tell black walnuts are ready to fall from the tree by checking a few simple signs.
 
The husks will be soft and easy to dent with your thumb.
 
The color will be shifting from green to yellow or black.
 
And if you shake a branch gently, ripe black walnuts will fall from the tree with almost no effort.
 

1. The Shake Test

Give a low branch a gentle shake.
 
If black walnuts fall from the tree easily, they’re ready.
 
If they hold on tight, they need a little more time.
 

2. Check the Ground Daily

During peak season, black walnuts fall from the tree every day.
 
Walk your yard each morning and gather what’s dropped overnight.
 
This keeps them from getting buried in grass or stolen by squirrels.
 

3. Look for Husks Splitting

When black walnuts fall from the tree, the husks often split open on impact.
 
That’s a clear sign the nut inside is mature.
 
If the husk is still tight and green, the nut wasn’t ready yet.
 

What to Do After Black Walnuts Fall From the Tree

Once black walnuts fall from the tree, you’ll want to gather them fast.
 
The husks are messy and can stain your hands and driveway.
 
So put on gloves and collect them in a bucket.
 
Then remove the husks and rinse the nuts thoroughly.
 
After that, spread them out to dry in a cool, airy spot for a few weeks.
 
This curing step is important because fresh black walnuts fall from the tree with high moisture and need time to dry before storing.
 

1. Wear Gloves

Black walnut husks contain juglone, which can stain your skin for days.
 
Always wear gloves when handling black walnuts that fall from the tree.
 

2. Compost the Husks

Don’t toss the husks in your garden beds.
 
Juglone can harm other plants, so compost them far from your vegetable patch.
 

3. Store the Nuts Properly

After curing, store your black walnuts in a mesh bag or breathable container.
 
Keep them in a cool, dry place, and they’ll last for months.
 

So, When Do Black Walnuts Fall From the Tree?

Black walnuts fall from the tree in late summer through autumn, usually between September and October.
 
The exact timing of when black walnuts fall from the tree depends on your climate, the weather, and how mature the nuts are.
 
Watch for the husks to turn yellow or black, and after a good rain or frost, you’ll see plenty of black walnuts fall from the tree.
 
Gather them quickly, cure them well, and you’ll have a great harvest of black walnuts from your own backyard.