What is the difference between Encephalartos princeps and E. lehmannii?

Lehmannii is smaller with shorter, stiffer leaves and a squatter trunk; princeps grows far taller with longer, straighter leaves. Both are blue, which is why they are confused in photographs and why measurements matter in a listing.

How big does Encephalartos princeps get?

Old plants exceed two metres of trunk with leaves well over a metre long. Plan the garden position before buying — moving a trunked princeps is a machine job.

Is princeps a good first blue cycad?

Yes. It is more forgiving and faster than most blue Encephalartos, and honest cultivated material is available at sane prices.

Kei blue cycad

Encephalartos princeps: the blue giant of the Great Kei

Encephalartos princeps is what collectors reach for when they want the blue of horridus at a far larger scale. Growing along the Great Kei and Great Fish river valleys of the Eastern Cape, it forms tall trunks topped with long, straight, steel-blue leaves — a landscape plant rather than a pot specimen.

Browse E. princeps listings Verified plants only

E. princeps available now

See all

Unverified

Encephalartos princeps - mature single stem

Encephalartos princeps

Caudex 220 cmHeight 210 cm

Cradock, Eastern CapeR 61 000

Unverified

Encephalartos princeps - blue Great Fish River form

Encephalartos princeps

Caudex 24 cmHeight 105 cm

Cradock, Eastern CapeR 36 500or offer

About Encephalartos princeps

Two loose forms circulate in the trade. Great Fish River plants tend to be more intensely blue with slightly shorter leaves, while Kei River plants are larger and greener-blue. Neither is formally separated, but sellers price them differently and buyers should know which they are looking at.

Princeps is a comparatively strong grower, which makes it one of the more attainable blue cycads for a garden. That vigour also means a trunked plant can be produced honestly in cultivation — so, unlike some of the ultra-rare species, a large princeps is not automatically a red flag. The paperwork still has to be right.

Because it suckers less freely than some relatives, most material comes from seed. Seed-grown plants show natural variation in colour and leaf length, so pick the individual plant rather than trusting the species name.

How to identify it

Long, straight to gently arching leaves, noticeably less recurved than horridus.
Leaflets narrow, mostly entire with a few basal spines, held flat in a neat plane.
Consistent silver-blue to grey-blue colour across the crown.
Trunk becomes tall and columnar with age, often over two metres in old plants.
New flush is soft blue-grey and lightly hairy before hardening.

What drives the price

Trunk height and stem thickness.
Intensity of blue and evenness of colour across the leaves.
Form provenance — Great Fish versus Kei River material.
Straight, undamaged trunk with a healthy single growing point.
Verification and permit completeness.

Seedlings are affordable entry points, mid-size stemmed plants sit in the tens of thousands, and tall old specimens with heavy trunks are priced per centimetre of stem. Compare the live listings below before setting your budget.

Permits and paperwork

Princeps is protected and needs a possession permit in private hands, with a nursery selling permit where you buy from a nursery. We attach both to the listing so you can check the documents before committing.

Read the cycad sale rules

Growing it

Full sun, deep well-drained soil, and space — this species resents being crowded and shows its colour best in the open. It is moderately frost tolerant and drought hardy once its root system is down.

E. princeps questions buyers ask

Buy E. princeps with the identification proven

Independent experts confirm the species, measurements and condition before a plant is marked verified, and every verified plant carries a Cycad Certificate recording its identity and each change of ownership.

How verification works Cycad Certificate registry Live auctions

All species guides