Mature size & growth rate

How big does Polynesian Davallia (Davallia solida) get?

Also called Polynesian Davallia, Tropical Hare's Foot Fern, Solid Davallia.

More about polynesian davallia

About Polynesian Davallia

Davallia solida · also called Polynesian Davallia, Tropical Hare's Foot Fern · houseplant

Davallia solida is a robust, epiphytic fern from tropical Asia and the Pacific Islands, grown for its finely divided, leathery fronds and the fuzzy, creeping surface rhizomes that give the genus their 'hare's foot' nickname. It thrives in bright indirect light, good air circulation, and tolerates brief dry periods better than most ferns.

Mature size: 30–45 cm tall, 45–60 cm wide; rhizomes spread beyond the pot rim

Indoor size vs how big it gets in the wild

Polynesian Davallia does not get tall — it gets long. Size here is about stem length and how you train or cut it, not how much floor it claims. Indoors and in a pot, expect 30–45 cm tall, 45–60 cm wide. In the ground with no restriction it is a completely different plant — rhizomes spread beyond the pot rim — which is why the pot, the light and the pruning matter so much for the size you actually end up with.

Growth shows up as lengthening stems that trail down or climb up a support; the plant can be kept tiny or grown metres long from the exact same root system.

Growth rate and years to mature

Polynesian Davallia is a moderate grower. Realistically, expect three to six years to reach mature indoor size, gaining a steady amount each growing season. Its feeding profile backs this up: feed monthly at half strength with a balanced liquid fertiliser during the growing season (spring to early autumn). davallia species are light feeders; excess nitrogen causes soft, pest-prone growth. no feeding needed in winter when the plant may partially go dormant.

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

How to keep polynesian davallia smaller

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

Trim the longest vines back to the length you want — polynesian davallia takes hard cutting well and bushes out from the cut.
Cut just above a leaf node; each trimmed stem usually branches into two, so pruning makes it fuller, not sparser.
The cuttings root easily in water or mix, so "keeping it smaller" doubles as free new plants.
A trim once or twice a season is usually enough to hold its length.

The keep-it-smaller method, step by step

Decide the length you want. Pick the point each vine of polynesian davallia should stop — you can be aggressive; it regrows readily.
Cut just above a node. Snip about 0.5 cm above a leaf node so the stem branches there instead of dying back.
Root the cuttings. Drop the trimmed pieces in water or mix — they root in 2-4 weeks and can fill the same pot for a bushier look.
Repeat as it runs. Re-trim whenever it overshoots; regular light pruning keeps it both smaller and fuller.

How to grow polynesian davallia bigger or faster

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

Good light plus a moss pole or trellis triggers the longest, fastest, largest-leaved growth.
Give it something to climb — many vines grow far faster and bigger up a support than trailing.
Feed through spring and summer and keep it consistently watered while it is actively running.

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

When polynesian davallia outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for polynesian davallia:

Vines pooling on the floor or wrapping past where you want them — purely a trimming cue, not a repot one.
Bare, leggy stems with leaves only at the tips (usually a light problem, not a size one).
A tangled mass that has outrun its support and needs cutting back and re-training.

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

Polynesian Davallia size — frequently asked questions

How big does polynesian davallia get?

Polynesian Davallia reaches 30–45 cm tall, 45–60 cm wide when grown indoors, and far larger where it grows unrestricted (rhizomes spread beyond the pot rim). Growth shows up as lengthening stems that trail down or climb up a support; the plant can be kept tiny or grown metres long from the exact same root system.

Is polynesian davallia slow or fast growing?

Polynesian Davallia is a moderate grower. Expect three to six years to reach mature indoor size, gaining a steady amount each growing season. Polynesian Davallia does not get tall — it gets long. Size here is about stem length and how you train or cut it, not how much floor it claims.

How long does polynesian davallia take to reach full size?

Roughly three to six years to reach mature indoor size, gaining a steady amount each growing season. Light, pot size and feeding move that timeline more than anything else.

How do I keep polynesian davallia smaller?

Trim the longest vines back to the length you want — polynesian davallia takes hard cutting well and bushes out from the cut. Cut just above a leaf node; each trimmed stem usually branches into two, so pruning makes it fuller, not sparser. The cuttings root easily in water or mix, so "keeping it smaller" doubles as free new plants. A trim once or twice a season is usually enough to hold its length.

How can I make polynesian davallia grow bigger or faster?

Good light plus a moss pole or trellis triggers the longest, fastest, largest-leaved growth. Give it something to climb — many vines grow far faster and bigger up a support than trailing. Feed through spring and summer and keep it consistently watered while it is actively running.