Propagate Matilija Poppy From a Winter Root

Take a pencil-thick root of matilija poppy in winter and lay it flat in sandy mix. Keep the mix barely moist until a shoot shows.

Take a pencil-thick root in winter

matilija poppy starts most reliably from a piece of root, not from a stem snip and not from untreated seed. Take the cutting in fall or winter, because digging the rhizomes in the growing season often kills the parent. [1] A small sprout that already has roots attached is even easier than a bare piece. Lift it with a spadeful of soil and pot it before you plant it out.

1. Choose a young side root at least as thick as a pencil. A thin, stringy piece rarely sprouts.
2. Cut a 3- to 6-inch length. You can then cut that into shorter pieces about 2 inches long.
3. If a small shoot has already come up, lift that sucker with its roots instead of a bare root.

Lay it flat in sandy mix

Lay each piece on its side on moist, soilless mix. Press it so it touches the mix, then cover it with about half an inch of sand. Keep the pot from freezing, and keep the mix moderately moist — not soggy and not bone-dry. Shoots may take a few months. [2] Young lateral roots taken in November or December and kept moist in shade are the usual nursery start. [3] Once a shoot is up and rooted, move it to a nursery pot. Plant it out in fall or winter without breaking the new root ball. Sun, first-year water, and the cut-back live on How to Grow Matilija Poppy.

1. Fill a shallow pot or flat with sandy mix. Moisten it, then lay the root pieces horizontally on the surface.
2. Cover with about half an inch of sand. Do not stand the pieces on end.
3. Set the pot in bright shade, out of a freeze. Water only enough to keep the mix barely moist.
4. Wait. New shoots can take two or three months. Pot each plant once it has its own roots, then plant it out in the cool season.

Seed needs smoke, not a plain sow

Seed will not sprout if you just drop it on the ground. In the wild it waits for fire. A home start is a smoke treatment in late fall, then an outdoor wait through winter — not a spring tray with no treatment. Buy a plant, or take a root, if you want flowers sooner. [4]

What fails a cutting

A shredded, hairlike root in wet mix is the usual loss. Digging the parent in summer, keeping the pot soggy, or letting the sand go bone-dry for weeks will also stall the sprout. Stem cuttings from the thickest wood are less reliable than a root piece. Do not keep lifting the cutting to check it.

1. Use a pencil-thick piece, not a torn thread of root.
2. Keep the mix barely moist. Dump standing water from the saucer.
3. Leave the pot alone for weeks. Checking it every few days breaks the new roots.

If the cutting turns soft in wet mix, start again with a thicker piece and less water.