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Mulberry Firewood

Morus rubra·hardwood·excellent overall rating

Mulberry Firewood at a Glance

Heat Output
23.2M BTU
per cord
Seasoning Time
12–18 months
to dry below 20%
Split Difficulty
easy
Smoke Level
medium
Spark Tendency
many
Fireplace Use
Not recommended
Overall Rating
excellent
Best Uses
Home Heating, Overnight Burns

Burn Characteristics

BTU / Cord

23.2

million BTU

Dry Weight

3,740

lbs/cord

Seasoning

1218

months

Split Difficulty

Easy

Smoke Level

Medium

Spark Tendency

Many

Coal Quality

excellent

Overall Rating

excellent

Is Mulberry a Good Firewood?

I'll be honest: I didn't take Mulberry seriously as firewood until a buddy dropped off half a cord he'd cleaned out of a fencerow. Loaded up the stove that night and was genuinely surprised. At 23.2 million BTU per cord and 3,740 lbs dry weight, this stuff puts out real heat.

The coals are excellent, and it splits easy. One of the easiest hardwoods you'll ever process. A few swings with a maul and the rounds practically fall apart. That alone makes it worth grabbing whenever you find it, because easy splitting means less time working and more time with your feet up.

Two things to know though. Mulberry throws more sparks than your typical hardwood, rated "many", so a fireplace screen is a must if you're running an open hearth. And the smoke level is medium, not super low like oak, so make sure it's well-seasoned before burning. Check our firewood seasoning guide for tips on getting it dialed in.

Speaking of seasoning, Mulberry only needs 12 to 18 months. That's pretty quick for a wood with this much heat output. The fragrance is good too, slightly sweet. Which makes it pleasant to work around and burn.

Overall, Mulberry earns an excellent rating. It's moderately available across the Midwest, South, and Northeast, often from old fencerows and property edges. If you like easy-splitting, high-heat hardwoods, also check out Honey Locust firewood for a similar experience.

Species Information

Scientific Name
Morus rubra
Also Known As
Red Mulberry
Type
hardwood
Regions
Midwest, South, Northeast
Availability
Moderate
Fragrance
Good
Green Weight
4,712 lbs/cord

How many cords of Mulberry do you need?

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How Long Does Mulberry Take to Season?

Mulberry firewood needs 12–18 months to reach proper burning moisture below 20%. The dense wood releases moisture gradually, so plan at least one full year ahead. Split it as small as practical to speed drying, stack it in a sunny spot with open sides, and use a moisture meter to confirm it’s ready before loading the stove.

With Mulberry, the biggest mistake people make is not splitting it soon enough. Whole rounds can take twice as long to dry as split pieces. Get it split and stacked the moment you bring it home, ideally in a spot with full sun and good wind exposure. Check it with a moisture meter before burning — don’t guess.

For detailed drying timelines for all 70 species, see our firewood seasoning guide. And if you want to understand why seasoning matters so much, our green vs seasoned firewood page breaks down exactly what happens when you burn wet wood.

Can You Burn Mulberry in a Fireplace?

Mulberry is not recommended for open fireplaces. It throws many sparks — more than most species — which is a genuine safety hazard when there’s no barrier between the fire and your living space. A single ember landing on carpet or furniture can start a house fire. Burn Mulberry exclusively in a closed wood stove or a fireplace insert with sealed glass doors, where it performs beautifully.

If you want the heat output of Mulberry without the fireplace concerns, a modern EPA-certified wood stove is the best option. Stoves contain sparks completely, operate at much higher efficiency than open fireplaces (72% vs 10–15%), and let you take full advantage of Mulberry’s 23.2 million BTU per cord.

Wondering which species are the best fireplace choices overall? Check our best firewood rankings, or compare Mulberry against all 70 species on the BTU chart.

Frequently Asked Questions

How long does Mulberry take to season?
Mulberry firewood takes 12–18 months to season to below 20% moisture content. Plan at least one full year ahead. Always split before stacking — rounds dry far slower than split pieces.
Can you burn Mulberry in a fireplace?
Mulberry is not recommended for open fireplaces due to heavy sparking. Use it in a closed wood stove or fireplace insert with glass doors instead.
How many BTU does Mulberry firewood produce?
Mulberry produces 23.2 million BTU per cord when properly seasoned. That's a solid mid-to-upper range output suitable for primary home heating.

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