Can You Spray Roundup Around Blueberry Bushes

Yes, you can spray Roundup around blueberry bushes, but you have to be extremely careful because blueberry bushes have shallow, sensitive roots that can easily absorb the herbicide and suffer serious damage.
 
The short answer is that it’s possible, but it comes with real risks that every grower should understand before grabbing that spray bottle.
 
If you’ve been wondering whether you can spray Roundup around blueberry bushes without killing them, the honest truth is that it depends on how you apply it.
 
In this post, we’ll walk through when spraying Roundup around blueberry bushes is safe, when it’s a terrible idea, and how to protect your plants if you decide to go that route.
 
Let’s dig in.
 

Can You Spray Roundup Around Blueberry Bushes?

You can spray Roundup around blueberry bushes, but only if you keep the herbicide strictly away from the roots, trunk, and foliage.
 
Roundup’s active ingredient, glyphosate, is a non-selective herbicide, which means it kills almost any plant it touches.
 
That’s exactly why spraying Roundup around blueberry bushes is risky, since your bushes are broadleaf plants just like the weeds you’re trying to kill.
 
Here’s why it’s such a delicate situation:
 

1. Blueberry Roots Are Shallow and Fragile

Blueberry bushes have fine, shallow root systems that sit close to the soil surface.
 
Because of this, glyphosate that reaches the soil can be absorbed directly by those roots.
 
Once inside, it travels through the plant and can cause yellowing, stunted growth, or even death.
 
So when you spray Roundup around blueberry bushes, any drift or overspray onto the soil is a real problem.
 

2. Glyphosate Is Absorbed Through Green Tissue

Roundup works by entering through leaves and green stems, then disrupting the plant’s ability to make proteins.
 
If even a light mist lands on your blueberry leaves, the bush can start showing damage within days.
 
That’s why you can spray Roundup around blueberry bushes only when you shield the foliage completely.
 

3. Root Suckers Make It Trickier

Blueberries often send up suckers from the base, and these young shoots are especially vulnerable.
 
Spraying Roundup around blueberry bushes means those tender suckers can easily catch drift and die back.
 
Over time, this weakens the bush and reduces fruit production.
 

How to Spray Roundup Around Blueberry Bushes Safely

If you still want to spray Roundup around blueberry bushes, follow these precautions to minimize the danger.
 

1. Spray on a Calm, Windless Day

Wind is the number one enemy when you spray Roundup around blueberry bushes.
 
Even a gentle breeze can carry fine droplets onto your bush’s leaves.
 
Pick a day with no wind and spray early in the morning when bees are less active.
 

2. Use a Shield or Cardboard Barrier

Place a piece of cardboard or a plastic shield between the sprayer and your blueberry bush.
 
This simple barrier lets you spray Roundup around blueberry bushes without hitting the trunk or foliage.
 
Move the shield along as you work around the plant.
 

3. Aim Only at the Weeds, Never the Soil

Direct the spray nozzle right at the weed leaves and keep it low to the ground.
 
Don’t soak the soil, because glyphosate can bind to soil particles but still leach toward shallow roots in some conditions.
 
The goal is to spray Roundup around blueberry bushes while touching nothing but the weeds.
 

4. Avoid Spraying When Berries Are Present

Never spray Roundup around blueberry bushes while fruit is on the plant.
 
Any drift onto the berries or leaves could contaminate your harvest.
 
Wait until after harvest and well before the next bloom cycle.
 

5. Consider Alternatives First

Honestly, hand-pulling, mulching, or using a flame weeder is safer than spraying Roundup around blueberry bushes.
 
A thick layer of pine bark mulch suppresses weeds and eliminates the need for chemicals.
 
If you must spray Roundup around blueberry bushes, treat it as a last resort, not a routine task.
 

Risks of Spraying Roundup Around Blueberry Bushes

Even with care, spraying Roundup around blueberry bushes carries risks you shouldn’t ignore.
 

1. Root Uptake Can Kill the Bush

Glyphosate absorbed by shallow roots can slowly poison the entire plant.
 
Symptoms include curled leaves, poor growth, and reduced yields over several seasons.
 

2. Drift Damage Is Common

Spray drift is the most frequent cause of accidental damage when people spray Roundup around blueberry bushes.
 
A single gust of wind can undo an hour of careful work.
 

3. Soil Health Can Suffer

Repeated use of Roundup around blueberry bushes may harm beneficial soil microbes.
 
Healthy soil biology matters for nutrient uptake, so damaging it hurts your bushes indirectly.
 

So, Can You Spray Roundup Around Blueberry Bushes?

You can spray Roundup around blueberry bushes, but only with extreme caution and the right protective measures.
 
The safer choice is usually to skip the herbicide entirely and use mulch, hand weeding, or other natural methods instead.
 
If you do decide to spray Roundup around blueberry bushes, never let it touch the leaves, trunk, suckers, or soil near the roots.
 
And always spray on a calm day with a shield in place to prevent drift.
 
Your blueberry bushes will reward you with healthier growth and better harvests when you keep Roundup at a safe distance.