Mulberry Growing Guide

Mulberry Growing Guide - Grow Organic

A Complete Guide to Growing Mulberries

Mulberries are a rewarding addition to any garden, offering delicious fruit and lush foliage. These hardy plants thrive in well-drained soil with full sun exposure, making them a low-maintenance choice for gardeners.

For gardeners in hot, dry climates, check out our guide on Mulberry Trees Grown in Dry Western Climates for tips on irrigation and heat management.

Here's everything you need to know to grow and care for mulberries successfully.

Click here to access the complete Mulberry Growing Guide (PDF) for detailed information on soil preparation, planting, and long-term care.

Planting and Soil Requirements

Mulberries prefer loamy soil with a pH between 6.0 and 6.5. When planting, ensure ample spacing of 15 to 30 feet between trees to accommodate their spread. For container growing, use successively larger pots during dormancy, allowing the plant to thrive for up to ten years.

To reduce desiccation and frost damage when planting bare-root trees, hydrate the plant thoroughly and prune lateral growth to limit surface area exposure.

Watering and Fertilization

While mulberries are drought-tolerant, insufficient water can cause fruit drop. Consistent moisture is vital, especially during the fruiting season. Fertilize minimally with a balanced amendment in late winter and consider adding a top dressing of well-aged manure in spring for extra nutrients.

Viability and Maintenance

To check tree viability, perform a scratch test on the bark to reveal the green cambium layer beneath. Remove any growth from below the graft to maintain the desired mulberry variety. 

For a lighter, seasonal perspective on mulberries and some charming stories from the garden, check out Here We Go Round the Mulberry Bush.

If the rootstock produces growth, it may still yield fruit, though it won't match the grafted variety.

Receiving and Storing Bare-Root Trees

Upon receiving your bare-root mulberry tree, inspect the roots to ensure they’re moist. If planting isn’t immediate, “heel in” the tree by covering its roots with soil or sand in a sheltered location. Protect the roots from freezing and ensure the tree remains dormant until planting.

Key Tips for Mulberry Success

  • Plant in the ground by April 1 for optimal growth.
  • Keep young roots hydrated and avoid freezing.
  • Prune the main trunk to four feet to promote strong root development.

With proper care, mulberries will produce delicious fruit and become a beautiful feature in your garden.

FAQs About Mulberry Growing

When is the best time to plant a mulberry tree?
Mulberries are best planted while dormant — typically in late winter or early spring — so they can establish roots before the growing season begins. Planting at this time helps the tree settle in and reduces transplant shock.
How often should mulberries be watered?
In the first year after planting, water deeply about once a week to help roots develop. Established trees are drought‑tolerant but benefit from deep watering during prolonged dry spells — especially when fruit is forming. Overwatering should be avoided to prevent root issues.
Do mulberry trees need pruning?
Mulberries don’t need heavy annual pruning like some fruit trees. Prune mainly to remove dead, crossing, or damaged branches in late winter while dormant. Excessive pruning can reduce fruit production and stress the tree.
Why isn’t my mulberry tree producing fruit?
Mulberries may take several years to fruit — typically 3–7+ years depending on the variety and growing conditions. Ensure the tree has full sun, proper watering, and isn’t overly shaded, as light and maturity are key for flowering and fruit set.
What pests or diseases should I watch for with mulberries?
Mulberries are generally hardy but can attract pests like spider mites, scale insects, and whiteflies. Good air circulation, removal of diseased leaves/branches, and organic controls (like insecticidal soap) help manage minor infestations. Fungal issues (e.g., powdery mildew) can occur in humid conditions but are usually not severe with proper care.
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