Mature size & growth rate

How big does Shahtoot Mulberry (Morus macroura) get?

Also called Shahtoot Mulberry, Long Mulberry, King White Mulberry, Afghan Mulberry.

More about shahtoot mulberry

About Shahtoot Mulberry

Morus macroura · also called Shahtoot Mulberry, Long Mulberry · edible

Shahtoot Mulberry is prized across South and Central Asia for its exceptionally long, sweet, white to pink fruits that can reach 5–8 cm — among the largest of any mulberry. A fast-growing deciduous tree, it is widely cultivated from Afghanistan to India and Pakistan. The fruits are intensely sweet, low in acid, and eaten fresh, dried, or as sherbet.

Mature size: 8–12 m tall × 6–10 m wide (26–40 ft × 20–33 ft); can be maintained smaller by pruning

Watch for — Poor fruiting in cool summers: In cooler temperate climates, insufficient summer heat leads to poor fruit set and under-ripe, flavourless fruit. Maximise heat by siting against a south-facing wall, use black-plastic mulch to warm the root zone, and remove excess shoot growth to concentrate energy on fruit.

Indoor size vs how big it gets in the wild

Shahtoot Mulberry is a tree at heart. Indoors a pot and your ceiling keep it to 8–12 m tall × 6–10 m wide (26–40 ft × 20–33 ft), but in the ground it is a different scale of plant entirely (can be maintained smaller by pruning). Indoors and in a pot, expect 8–12 m tall × 6–10 m wide (26–40 ft × 20–33 ft). In the ground with no restriction it is a completely different plant — can be maintained smaller by pruning — which is why the pot, the light and the pruning matter so much for the size you actually end up with.

It gains real height on a trunk or main stem, adding a tier of leaves a year and eventually reaching for the ceiling — this is a plant you grow up, not out.

Growth rate and years to mature

Shahtoot Mulberry is a fast grower. Realistically, expect two to four years from a young plant to a room-filling specimen in good light. Its feeding profile backs this up: feed with a balanced npk fertiliser in early spring and a high-potassium feed in late spring. in warm climates a third application in midsummer supports the heavy cropping habit. avoid excess nitrogen. in the uk, grow under glass or against a warm wall and feed fortnightly with a tomato-type high-k fertiliser during the growing season.

Want this turned into the right next pot at the right moment? The pot size calculator and the shahtoot mulberry repotting guide cover when and how much to size up — pot size is one of the biggest levers on how fast shahtoot mulberry grows.

How to keep shahtoot mulberry smaller

You are not stuck with the maximum size. For shahtoot mulberry specifically, these are the levers, in order of impact:

The decisive tool is the secateurs: shahtoot mulberry can be topped (cut the main growing tip) to cap its height and force a bushier, shorter shape.
Keeping it deliberately pot-bound in a snug container slows the whole plant and limits ultimate size.
Prune in spring so it heals fast; remove the tallest leader back to a node to reset the height.
Expect to top or hard-prune it every year or two — left alone it heads for the ceiling.

The keep-it-smaller method, step by step

Pick the new height. Decide how tall you want shahtoot mulberry and find a leaf node or branch point just below that.
Top the main stem. Cut the main growing tip cleanly just above that node in spring; this permanently caps the height and forces side branches.
Keep the pot snug. Avoid jumping to a much bigger pot — a slightly restricted rootball keeps the whole plant smaller.
Maintain the shape. Prune back the tallest new leaders each spring to hold it at the height you chose.

How to grow shahtoot mulberry bigger or faster

If you want it to fill the space sooner, push the conditions rather than hoping — for shahtoot mulberry the accelerators are:

It already wants the bright light it needs; warmth, a yearly pot-up and spring-summer feed are the accelerators.
Pot up a size every year or two while young; restricted roots are the main thing holding height back.
Feed regularly through the growing season and keep it warm — height comes from sustained good conditions.

Light is almost always the ceiling. The shahtoot mulberry light requirements page covers exactly how bright a spot it needs to grow at its potential instead of stalling.

When shahtoot mulberry outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for shahtoot mulberry:

The top leaves pressing against or bent by the ceiling — the classic "this is now too tall indoors" sign.
It has to be moved away from a light source it has literally outgrown.
Roots filling the largest pot you can reasonably keep indoors — at that point it is top-or-prune or move it outside (if hardy).

If it is the pot rather than the room, it is a repotting job, not a goodbye — see the shahtoot mulberry repotting guide. If you want more of this plant instead of a bigger one, the shahtoot mulberry propagation guide turns prunings into new plants.

Shahtoot Mulberry size — frequently asked questions

How big does shahtoot mulberry get?

Shahtoot Mulberry reaches 8–12 m tall × 6–10 m wide (26–40 ft × 20–33 ft) when grown indoors, and far larger where it grows unrestricted (can be maintained smaller by pruning). It gains real height on a trunk or main stem, adding a tier of leaves a year and eventually reaching for the ceiling — this is a plant you grow up, not out.

Is shahtoot mulberry slow or fast growing?

Shahtoot Mulberry is a fast grower. Expect two to four years from a young plant to a room-filling specimen in good light. Shahtoot Mulberry is a tree at heart. Indoors a pot and your ceiling keep it to 8–12 m tall × 6–10 m wide (26–40 ft × 20–33 ft), but in the ground it is a different scale of plant entirely (can be maintained smaller by pruning).

How long does shahtoot mulberry take to reach full size?

Roughly two to four years from a young plant to a room-filling specimen in good light. Light, pot size and feeding move that timeline more than anything else.

How do I keep shahtoot mulberry smaller?

The decisive tool is the secateurs: shahtoot mulberry can be topped (cut the main growing tip) to cap its height and force a bushier, shorter shape. Keeping it deliberately pot-bound in a snug container slows the whole plant and limits ultimate size. Prune in spring so it heals fast; remove the tallest leader back to a node to reset the height. Expect to top or hard-prune it every year or two — left alone it heads for the ceiling.

How can I make shahtoot mulberry grow bigger or faster?

It already wants the bright light it needs; warmth, a yearly pot-up and spring-summer feed are the accelerators. Pot up a size every year or two while young; restricted roots are the main thing holding height back. Feed regularly through the growing season and keep it warm — height comes from sustained good conditions.