tree

Black Mulberry

The Story

Plant Bio

Morus nigra is a deciduous tree forming a broad, dense, dome-shaped canopy on a short, characteristically twisted trunk. The alternate, heart-shaped leaves are distinctly rough and scabrous on the upper surface and soft-hairy beneath, turning from bright green to a dull dark green by summer.

This species produces large, highly flavorful, dark purple-to-black fruits that are widely considered superior in taste to other mulberries. It remains a smaller, more compact tree than the white mulberry, making it more manageable in home orchards.

Uses & Benefits:

Features a picturesque, twisted trunk and a dense, sprawling canopy that provides excellent shade.

Produces large, sweet, edible fruits suitable for fresh eating, preserves, and baking.

Provides a highly abundant seasonal food source for fruit-eating birds and small mammals.

Essentials

At a Glance

Plant Type

Tree

Height

354"

Width

472"

Light

Full Sun

Zones

5, 6, 7, 8, 9

Water

Medium

Humidity

Moderate

Lifespan

Long-lived

Native To

Asia

Toxicity

Mildly toxic if unripe

Bloom period

Spring

In flower about 3 months of the year

Planting

How to Grow

Select a planting site in full sun with fertile, well-drained loam, sand, or clay soil.
Position the tree away from paved walkways, driveways, or patios to prevent dropped fruits from staining surfaces.
Water regularly during the first two growing seasons to establish a deep, drought-tolerant root system.
Apply a balanced organic fertilizer or compost mulch around the drip line annually in early spring.

Pro Tip

Never prune heavily into old, leafless wood, as it heals poorly and invites wood-boring pests; instead, perform light annual shaping during winter dormancy.

Keep It Thriving

Care Guide

Do

Prune annually in late winter to remove dead or crossing branches and maintain an open canopy.
Protect young tree trunks with physical guards to prevent deer and rabbit browsing.
Harvest fruit only when fully ripe and dark to ensure sweetness and avoid stomach irritation from unripe berries.

Don't

Do not plant near concrete paths, decks, or parking areas where staining fruit will cause cleanup issues.
Do not overwater or plant in low-lying areas prone to prolonged waterlogging, which triggers root rot.
Do not prune heavily into old, leafless wood, as these wounds heal poorly.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Harvest
Pest Check
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Home OrchardSpecimen TreeShade TreeEdible Landscape

Companion Plants

Rosmarinus officinalis Lavandula angustifolia Nepeta faassenii

Multiply

Propagation Methods

Good to Know

Common Questions

Black Mulberry questions

What zones can Black Mulberry grow in?

Black Mulberry is hardy in USDA Zones 5–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Black Mulberry deer resistant?

Not reliably. Deer may browse Black Mulberry, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Black Mulberry bloom?

Black Mulberry typically blooms in spring through spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Black Mulberry need full sun?

Black Mulberry does best in full sun (6+ hours).

Is Black Mulberry drought tolerant?

Yes — once established (usually after the first full season), Black Mulberry handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.