Propagating Cryptocoryne beckettii (Beckett's Crypt)

Multiply this hardy bronze-olive rosette crypt by separating runner-borne daughter plants and dividing the rhizome, and learn how to ride out crypt melt.

Overview

Cryptocoryne beckettii is a perennial, rhizomatous herb native to the freshwater springs and rivers of Sri Lanka. It grows as a basal rosette of leaves on sheathing petioles up to about 15 cm long, with blades that range from green to dark green, brown or red-brown above and a red-tinged underside marked by conspicuously red veins. Often called the oldest cultivated crypt, it is one of the easiest aquarium Cryptocorynes once it has settled in.

Because it is a rosette plant rather than a stem plant, you never top or take cuttings. Instead it spreads on its own by sending out runners and by thickening its rhizome, so propagation is mostly a matter of harvesting what the mother plant already produces.

Propagation Method (Runners / Division)

Cryptocoryne beckettii normally spreads and multiplies by vegetative stolon and rhizome growth. Two routes are available: separating daughter plants that appear on runners (stolons) creeping through the substrate, and dividing an established rhizome into rooted sections. Both rely on the plant having first acclimatised and grown a solid root system.

Step-by-Step

Wait until the mother plant is well established and has pushed up several daughter plants along its runners.
Trace each runner through the substrate to a daughter plant that already carries its own roots and two or three leaves.
Cut the runner with clean scissors, leaving roots on both the daughter and the mother.
Lift the daughter plant gently so its fibrous roots stay intact, or dig up and split the rhizome into chunks that each keep roots and a growing point.
Replant each division in nutrient-rich substrate, burying the roots but keeping the crown above the substrate surface.
Push a root tab beside each new plant and leave it undisturbed while it re-roots.

Conditions for Healthy Growth

This crypt prefers a quiet location and light that is not too intense; it tolerates low light and grows very easily even in hard water. Give it a good, nutrient-rich substrate, ideally a mix that includes some sand, clay and peat. It thrives without added CO2, though extra CO2 and richer substrate speed it along. As a root feeder it draws most of its nutrition from the bed, so feed the substrate rather than the water column.

Maintenance

Beckett's crypt is slow and low-maintenance: leave the rosette in place and let it spread into a compact group. Remove only old or damaged outer leaves at the base, and thin out daughter plants when the clump becomes crowded. Top up root tabs periodically to keep the heavy root system fed.