Repotting guide

When & how to repot Nihoa Palm (Pritchardia remota)

Also called Nihoa Palm, Nihoa Loulu.

More about nihoa palm

About Nihoa Palm

Pritchardia remota · also called Nihoa Palm, Nihoa Loulu · tropical

Pritchardia remota is a critically endangered fan palm endemic to the remote, uninhabited island of Nihoa in the Northwestern Hawaiian Islands. One of the rarest palms in the world, surviving in extremely harsh, arid, wind-swept conditions. Rarely cultivated outside specialist conservation collections. True palms are generally pet-safe.

Mature size: Up to 5-10 m tall in habitat; usually smaller in cultivation

Watch for — Root rot from overwatering: The main risk in cultivation; treat this species like a succulent palm and water very sparingly.

How to tell nihoa palm needs repotting

Repotting on a calendar is less reliable than reading the plant. For nihoa palm, watch for these signs:

Roots growing out of the drainage holes, or the rootball lifting the plant proud of the rim.
Soil that has shrunk away from the pot sides and no longer holds water.
The pot is unstable because the plant has grown top-heavy.
Old, compacted, broken-down mix that stays wet too long — for a succulent that is a rot risk, so refresh it even if the pot size is fine.

For the underlying biology of a pot-bound root system and why it stalls a plant, see our guide to spotting and fixing a root-bound plant.

How often to repot nihoa palm

Every 2–3 years, into bone-dry mix. Nihoa Palm's growth habit — single-trunk robust fan palm — sets the pace. Pritchardia remota is a critically endangered fan palm endemic to the remote, uninhabited island of Nihoa in the Northwestern Hawaiian Islands. One of the rarest palms in the world, surviving in extremely harsh, arid, wind-swept conditions. Rarely cultivated outside specialist conservation collections. True palms are generally pet-safe.

What size pot to step nihoa palm up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Nihoa Palm stores water and rots in a large pot of slow-drying soil. A tight terracotta pot that dries fast is far safer than a generous plastic one. Never up-pot a succulent by several sizes.

Not sure of the exact diameter? Our pot size calculator takes the current pot and root spread and tells you the right next size — it deliberately recommends a single step up, never a big jump.

The best time of year to repot nihoa palm

Spring or summer, while nihoa palm is in active growth and warm, is best — roots recover fastest then, and the plant is not sitting in cool damp soil. Avoid repotting a succulent in winter dormancy.

Step-by-step: repotting nihoa palm

Repot dry. Do not water nihoa palm for several days first. Working with dry roots and dry mix dramatically lowers the rot risk for a succulent.
Pick a snug, fast-draining pot. Choose terracotta one size up at most, with a drainage hole. Have gritty very free-draining rocky or sandy mix ready.
Tip it out and clean the roots. Slide the plant out, crumble off the old soil, and trim any black, mushy or dead roots with clean snips.
Pot into dry mix. Set nihoa palm at its original depth in dry gritty mix, firming gently. Do not bury the stem deeper than it was.
Wait a week before watering. Leave it completely dry and out of harsh sun for about 7 days so any damaged roots callus. Only then water lightly.

Aftercare

Keep nihoa palm completely dry and out of fierce sun for about a week so any nicked roots callus before they meet moisture; watering a freshly repotted succulent is the classic way to rot it. Then resume the normal lean, dry rhythm. Do not fertilise for about 3 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for nihoa palm

Nihoa Palm wants very free-draining rocky or sandy mix. Best in gravelly, sandy, or rocky free-draining soil with minimal organic content. In containers, use cactus or palm grit mix with added perlite. Tolerates alkaline or neutral pH up to 7.5. Good drainage is the single most critical requirement. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting nihoa palm — frequently asked questions

How often should you repot nihoa palm?

Every 2–3 years, into bone-dry mix for nihoa palm. Repot nihoa palm every 2–3 years into a snug pot of very free-draining rocky or sandy mix, ideally in spring or summer. Let it sit in dry soil and do not water for about a week afterwards so any nicked roots can callus. Over-potting and watering straight away is what rots succulents.

What size pot does nihoa palm need?

When is the best time of year to repot nihoa palm?

Should you water nihoa palm after repotting?

No — not straight away. Repot nihoa palm into dry mix and wait about a week before the first watering so any damaged roots callus over. Watering a freshly repotted succulent is the single most common way to rot one.

Should you fertilise nihoa palm after repotting?

Not immediately. Wait about 3 weeks after repotting nihoa palm. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.