A quick guide to thriving lupins.
Lupins can be grown either from seed or cuttings.
Seeds
When seed pods have turned brown, remove them from the plant and open them. Store the seeds in a cool, dry, dark place until you’re ready to sow them. If stored correctly, seeds can remain viable for 3 years or more.
Basel cuttings
During April, the strong basal shoots of herbaceous perennials make excellent, quick-rotting cuttings. By following the steps below, you can grow plenty of new plants.
What you need
- A sharp knife
- A dibber or chopstick
- Sharp grit
- Clear plastic bag
Steps
- Select a plant with several strong basal shoots, 10 – 12 cm long. Choose 3 or 4 to take as cuttings. Make a clean cut as close to the base as possible.
- Neaten the cut if needed, then use a sharp knife to remove any basal leaves that would sit below the compost surface. Pinch out the top with your fingers.
- Use a dibber o chopstick to ease the cuttings into the compost, inserting them at least 2.5 cm deep. For best results, place the cuttings around the edge of the pot.
- Cover the compost surface with grit to discourage weeds and help retain moisture. Water and mist the cuttings regularly to reduce moisture loss though the leaves.
- After watering, place a clear plastic bag over the cuttings to keep them damp.