How to Propagate Daphne from Cuttings and Layering

Propagate before you need to, not after

The argument for propagating daphne is not that plants are expensive. It is that a healthy shrub can be lost in a fortnight for no visible reason, and a cutting taken from a dead plant is not an option. Every grower who has kept daphne happily for years does the same thing: takes a few cuttings while the plant is thriving, roots them, and keeps one or two coming along quietly in pots somewhere else in the garden.

The plant you propagate from matters. Choose a specimen that is growing strongly, flowering well and, above all, showing no pale mottling, blotching or ring patterns in the leaves. Those patterns mean virus, and every cutting you take from an infected plant will be infected too, however healthy it looks in its first year.

Wear gloves throughout. Daphne sap irritates skin, and taking a batch of cuttings means a lot of contact with freshly cut stems. Keep the trimmings away from children and pets, and do not leave cut material lying where it can be picked up.

Semi-ripe cuttings: the standard method

The timing is the part most people get wrong. What you want is semi-ripe wood: this season's growth that has firmed up and gone slightly woody at the base while the tip is still soft and green. Bend a shoot; it should be springy rather than either floppy or brittle. That state arrives in late summer to early autumn, once the main flush of growth has slowed. Softwood taken too early rots, fully hardened wood taken too late sits for months and does nothing.

Take the material early in the morning, when the shoots are full of water, and get it into the propagating compost quickly. If you have to carry cuttings any distance, seal them in a plastic bag out of the sun. A wilted cutting rarely roots.

1. Cut healthy shoots four to six inches long Choose side shoots of this season's growth, four to six inches (10 to 15 cm) long, from the outside of the plant where the wood has ripened evenly. Take more than you need, because a proportion will always fail.
2. Trim to a heel or a node Either pull the shoot off with a small heel of older bark attached and trim the tail of the heel clean, or cut straight across just below a leaf joint. Both work; the heel is traditional for daphne and roots a little more reliably.
3. Strip the lower leaves Remove the leaves from the bottom half of the cutting and pinch out the very soft tip if it is still growing. Leave three or four leaves at the top, halving any that are large, so the cutting can photosynthesise without losing too much water.
4. Dip the base in rooting hormone Moisten the cut end, tap it in hormone rooting powder or gel and knock off the excess. It is not essential but it improves the strike rate noticeably on woody cuttings like these.
5. Insert into gritty, open potting mix Use half potting mix and half coarse grit, perlite or sharp sand. Push each cutting in a third to half its length around the edge of a pot, firm lightly and water once to settle the compost around the stems.
6. Keep humid, shaded and cool at the top, warm at the base Cover with a propagator lid or a clear bag held clear of the leaves, and keep them out of direct sun. Bottom heat around 65F (18C) speeds rooting considerably. Ventilate for a few minutes daily to stop gray mold building up.
7. Wait, and resist pulling them up Expect roots in roughly six to twelve weeks, sometimes longer. Test by tugging very gently; resistance means roots. Cuttings that are still green and firm at three months are still worth keeping, so do not tip them out early.

Layering: slower, but hard to get wrong

If the plant has any low, flexible branches, layering is the most reliable method there is, because the shoot stays attached to the parent and keeps being fed while it makes its own roots. Choose a young, whippy branch that can be bent down to soil level without cracking. Loosen a patch of ground where it will touch, or sink a pot of gritty potting mix there if the ground is unsuitable.

Wound the underside of the stem lightly where it will meet the soil, either by a shallow angled cut or by twisting to bruise the bark, dust the wound with rooting hormone, then pin the stem down with a wire staple or a stone and cover it with an inch or two (3 to 5 cm) of soil. Tie the tip to a short cane so it grows upward. Keep the spot moist and leave it entirely alone.

Rooting typically takes a full year, sometimes two. Check by scraping a little soil away rather than lifting the stem. When there is a decent root system, sever the layer from the parent but leave it in place for another few weeks before lifting it, so it adjusts to living on its own roots before it is disturbed.

Growing on: the stage where most losses happen

Rooted daphne cuttings are more likely to be lost during potting up than during rooting, because the young roots break easily and the plants hate disturbance from the very beginning. Handle each cutting by its leaves, never by the stem, and move it with as much compost as will cling on.

Pot into a small pot of loam-based compost with added grit, one size up only, and keep the young plants somewhere sheltered, bright and frost-free for their first winter. A cold frame or an unheated porch is ideal; a warm indoor room is not, because they need a cool rest. Do not feed until they are growing away strongly the following spring, and then only lightly.

Leave them in pots for a year or two before planting out, and remember that the same rule applies as for a nursery plant: choose the final position carefully, because once they are in the ground they will not move again.

Handle berries and seed with gloves and keep them out of reach. The fruit is the most poisonous part of the plant and its bright color is exactly what makes it tempting to a child.

Keep a record of what rooted and what did not

Success rates with daphne cuttings vary far more between batches than between gardeners, so your own notes are the only useful guide. Write down when you took each batch, how firm the wood was, whether you used a heel or a node, whether you had bottom heat, and how many of each batch were still alive at the end of the following spring rather than at the end of the first month.

After two or three seasons that record tells you the exact week in your own garden when the wood reaches the right stage, which is the single biggest factor in the strike rate. It also tells you, quite unsentimentally, how many cuttings you need to take to be confident of one surviving plant.