Mature size & growth rate

How big does Camassia leichtlinii (Camassia leichtlinii) get?

Also called great camas, Leichtlin's camas, blue camas.

More about camassia leichtlinii

About Camassia leichtlinii

Camassia leichtlinii · also called great camas, Leichtlin's camas · flowering

Great camas is a hardy North American bulb that sends up tall spires of star-shaped blue, violet or creamy-white flowers in late spring. Unusually for a bulb, it thrives in moist, even seasonally wet, soils and naturalises beautifully in damp meadows and borders. Plant in autumn, sun to part shade, and leave undisturbed to multiply.

Mature size: 0.6-1.3 m (2-4 ft) tall in flower; clumps spread slowly to about 30-45 cm wide

Watch for — Slow to establish: Newly planted bulbs and seedlings can take two to four years to settle and bloom freely. Patience and an undisturbed position pay off.

Indoor size vs how big it gets in the wild

Camassia leichtlinii is a tree at heart. Indoors a pot and your ceiling keep it to 0.6-1.3 m (2-4 ft) tall in flower, but in the ground it is a different scale of plant entirely (clumps spread slowly to about 30-45 cm wide). Indoors and in a pot, expect 0.6-1.3 m (2-4 ft) tall in flower. In the ground with no restriction it is a completely different plant — clumps spread slowly to about 30-45 cm wide — 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

Camassia leichtlinii 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: low feeder. top-dress with leaf mould or a balanced general fertiliser in early spring as growth emerges; an annual mulch of compost is usually all an established clump needs. avoid high-nitrogen feeds that push leaf over flower.

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

How to keep camassia leichtlinii smaller

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

The decisive tool is the secateurs: camassia leichtlinii 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 camassia leichtlinii 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 camassia leichtlinii bigger or faster

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

When camassia leichtlinii outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for camassia leichtlinii:

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

Camassia leichtlinii size — frequently asked questions

How big does camassia leichtlinii get?

Camassia leichtlinii reaches 0.6-1.3 m (2-4 ft) tall in flower when grown indoors, and far larger where it grows unrestricted (clumps spread slowly to about 30-45 cm wide). 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 camassia leichtlinii slow or fast growing?

Camassia leichtlinii is a moderate grower. Expect three to six years to reach mature indoor size, gaining a steady amount each growing season. Camassia leichtlinii is a tree at heart. Indoors a pot and your ceiling keep it to 0.6-1.3 m (2-4 ft) tall in flower, but in the ground it is a different scale of plant entirely (clumps spread slowly to about 30-45 cm wide).

How long does camassia leichtlinii 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 camassia leichtlinii smaller?

The decisive tool is the secateurs: camassia leichtlinii 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 camassia leichtlinii 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.