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How to grow mulberries

Mulberry fruit on branches

The mulberry is a long-lived and prolific fruit tree with sweet blackberry-like fruits and a lovely ornamental habit. The National Collection of mulberries is held by The Queen in her royal gardens in London and it includes a few specimens that are well over a century old! You can grow your own mulberry trees in the ground or in a patio container. Just one of the many fruit trees sold online at Suttons, here’s how to get your mulberry off to a strong start…

What are mulberries?

Although they’re mainly grown for their fruit, mulberry trees have ornamental merit too. Featuring a broad crown of lovely heart-shaped leaves, these deciduous trees put on a lovely autumn display before dropping their leaves for winter. 

The white mulberry (Morus alba) is native to parts of Asia where it’s the sole food of silkworms. The red mulberry (Morus rubra) is native to North America where the wood is especially prized for smoking meats. Here in the UK and Europe, the most common variety is the black mulberry (morus nigra). Packed full of anthocyanins, its dark fruits look very similar to blackberries and taste super sweet. They’re hard to find in the supermarket, so it makes sense to grow your own supply!

The best mulberry varieties

Mulberry ‘King White’ from Suttons 
Mulberry ‘King White’ produces extra long fruits with great flavour
Image: Mulberry ‘King White’ from Suttons

Full-sized mulberry trees ideally need to be planted in the ground with plenty of room to spread out. Choose a dwarf variety if you have a small garden or a container on the patio. Here are some of our favourite mulberry trees to grow outdoors in the UK:

  • Mulberry ‘King White’ (Morus macroura) – The sweetest white mulberry, this variety produces delicious fruits that grow up to 10cm long and are virtually transparent when ripe. At maturity, expect your tree to reach a spread of 12m and a height of 10m, with an ornamental, weeping habit. 
  • Mulberry ‘Charlton House’ (Morus nigra) – Originating from the oldest mulberry tree in England, you may have to wait a few years for your tree to fruit, but the sweet black berries are worth it! Reaching a height of 12 metres, the attractive heart-shaped leaves turn bright buttery yellow in the autumn.
  • Dwarf Mulberry ‘Charlotte Russe’ – Named after a French pudding, this sweet dwarf variety produces berries from May until September in the first year following planting! Maturing at 1.5m tall, it’s a perfect choice for a container or small garden.
  • Dwarf Mulberry Bush ‘Charlotte Russe Standard’ – A striking statement, this mulberry standard is pre-trained from the dwarf ‘Charlotte Russe’ to form a stylish single main stem. Reaching just 1.5m tall, it produces sweet dark berries.

How to plant mulberries in the ground

Fully grown mulberry tree
Full size mulberry trees have a pleasant ornamental shape
Image: Roman Kutsekon/Shutterstock

To plant your mulberry tree in the ground, choose a sunny position with plenty of space so that it can reach its full size. Unless you’re growing a dwarf variety, allow at least 4.5m on either side, and choose a spot that’s sheltered from cold winds:

  • Dig a hole deep enough to accommodate the root ball. 
  • Water the base of the hole.
  • Bang a sturdy stake in the hole to support your developing tree and protect from wind rock.
  • Plant your tree and loosely secure it to the stake with twine.
  • Mulch the tree and water in well.

How to plant mulberries in a container

Dwarf Mulberry ‘Charlotte Russe’ Standard from Suttons
Mulberry standards are compact, ornamental and productive
Image: Dwarf Mulberry ‘Charlotte Russe’ Standard from Suttons

To plant your dwarf mulberry in a container:

  • Choose a large heavy bottomed container, at least 20L, with good drainage holes.
  • Use quality tree compost.
  • Mulch the potted tree with well-rotted manure to improve soil water retention. 
  • Place the container in full sun.
  • Water your mulberry. Keep an eye on the soil moisture levels inside the pot, allowing it to semi-dry out in between watering.
  • Feed your potted mulberry every few weeks during the growing season with balanced feed or liquid seaweed.
  • Refresh the compost in the container every year or two by replacing the top layer. 

How to prune mulberries

Closeup of hands holding secateurs to prune branch
Use sharp secateurs to shape your mulberry bush 
Image: Take Photo/Shutterstock

Mulberries don’t appreciate lots of pruning, so try to be economical with the amount of cuts you make and only prune every few years or so. If you need to prune, wait until your tree is dormant during the winter months. Remove damaged, diseased or dead branches using clean secateurs or loppers, making sure to leave a clean cut. You can open up the centre of your tree by removing crossing growth, cutting any branches back to an outward facing bud, and gently shaping the tree to how you want it to look.

Mulberry pests and diseases

Birds sitting in mulberry tree
Birds love eating ripe mulberries
Image: Vanshika Ahuja/Shutterstock

Mulberry trees are relatively pest and disease free. Any problems are most likely to be caused by:

  • Birds. Pigeons are attracted to the ripening berries. Protect your mulberry bushes with netting, checking regularly during fruiting to make sure no birds have become trapped. For larger trees that are too big for netting, deter birds with shiny cds or a noisy bird scarer.
  • Mildew. This fungal disease is visible as powdery grey or white splodges on leaves. Remove infected foliage, and prune the tree to open up the interior and improve air flow. This disease isn’t fatal, but can be treated with a fungicide in bad cases.

If you notice your mulberry tree isn’t fruiting, it may still be putting its effort into growing to maturity. Some types of mulberry can take up to eight or nine years from planting to fruit properly, so patience is key.

How to harvest mulberries

Mulberry jam made out of Mulberry ‘Charlton House’ from Suttons
Fresh mulberries make a sweet snack
Image: Mulberry ‘Charlton House’ from Suttons

Harvest your mulberries in August and September by vigorously shaking the tree to loosen any ripe berries. Just lay out a sheet below to catch them. Alternatively, gently pull at a berry and, if ripe, it should come away from the stem easily. The dark fruits can stain light clothes so dress carefully when you harvest.

Mulberries have a very sweet flavour and are delicious when eaten straight from the tree but you can also freeze or dry any excess. Use your tasty mulberries just like you would raspberries or blackberries: sprinkle them onto porridge or granola, whizz them up into smoothies and juices or bake them into cakes and muffins. Mulberry jam is delicious too!

We hope you’ve found our mulberry growing guide helpful. Share images of your mulberry trees with us via social media using #mysuttonsjourney — we love to hear from you!

Lead image: Nomad_Soul/Shutterstock

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One thought on “How to grow mulberries”

  1. Shishir Mehta says:

    Excellent article, I have been pondering over growing the plant, now I can as I have found out that it is suitable to plant one in a pot.
    Many Thanks
    S. Mehta

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