Mature size & growth rate

How big does Pawpaw 'Susquehanna' (Asimina triloba 'Susquehanna') get?

Also called Susquehanna pawpaw.

More about pawpaw 'susquehanna'

About Pawpaw 'Susquehanna'

Asimina triloba 'Susquehanna' · also called Susquehanna pawpaw · edible

'Susquehanna' is a Peterson pawpaw selection famous for very large fruit, thick buttery flesh and notably few, small seeds. This hardy deciduous understorey tree of eastern North America crops in temperate gardens but needs a second, genetically different cultivar to pollinate it. Give young trees light shade, mature trees full sun, and deep, moist, well-drained soil.

Mature size: Around 4-6 m tall with a 3-4 m spread; can be pruned smaller.

Indoor size vs how big it gets in the wild

Pawpaw 'Susquehanna' is a tree at heart. Indoors a pot and your ceiling keep it to around 4-6 m tall with a 3-4 m spread, but in the ground it is a different scale of plant entirely (can be pruned smaller.). Indoors and in a pot, expect around 4-6 m tall with a 3-4 m spread. In the ground with no restriction it is a completely different plant — can be pruned smaller. — 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

Pawpaw 'Susquehanna' 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: apply a balanced spring feed or compost as growth begins, with a light supplementary feed in early summer to support the large fruit. go easy on nitrogen to favour fruit over foliage; annual organic mulch covers most needs on good soil.

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

How to keep pawpaw 'susquehanna' smaller

You are not stuck with the maximum size. For pawpaw 'susquehanna' specifically, these are the levers, in order of impact:

The decisive tool is the secateurs: pawpaw 'susquehanna' 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 pawpaw 'susquehanna' 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 pawpaw 'susquehanna' bigger or faster

If you want it to fill the space sooner, push the conditions rather than hoping — for pawpaw 'susquehanna' 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 pawpaw 'susquehanna' light requirements page covers exactly how bright a spot it needs to grow at its potential instead of stalling.

When pawpaw 'susquehanna' outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for pawpaw 'susquehanna':

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 pawpaw 'susquehanna' repotting guide. If you want more of this plant instead of a bigger one, the pawpaw 'susquehanna' propagation guide turns prunings into new plants.

Pawpaw 'Susquehanna' size — frequently asked questions

How big does pawpaw 'susquehanna' get?

Pawpaw 'Susquehanna' reaches around 4-6 m tall with a 3-4 m spread when grown indoors, and far larger where it grows unrestricted (can be pruned smaller.). 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 pawpaw 'susquehanna' slow or fast growing?

Pawpaw 'Susquehanna' is a fast grower. Expect two to four years from a young plant to a room-filling specimen in good light. Pawpaw 'Susquehanna' is a tree at heart. Indoors a pot and your ceiling keep it to around 4-6 m tall with a 3-4 m spread, but in the ground it is a different scale of plant entirely (can be pruned smaller.).

How long does pawpaw 'susquehanna' 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 pawpaw 'susquehanna' smaller?

The decisive tool is the secateurs: pawpaw 'susquehanna' 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 pawpaw 'susquehanna' 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.