Dianthus / Carnations Sowing and Growing

Dianthus / Carnations Sowing and Growing

Sowing & Growing Guide
When to Sow:

  • Indoors: January to March
  • Outdoors: April to May

Indoor Sowing:

  1. Fill seed trays or small pots with fine, peat-free seed compost.
  2. Sow the seeds thinly on the surface and lightly press them in without covering – they need light to germinate.
  3. Place the trays in a warm spot, ideally at 15-20°C.
  4. Keep the soil moist, but avoid overwatering.
  5. Germination should take 14-21 days. Once seedlings are large enough to handle, transplant them into individual pots.

Outdoor Sowing:

  1. Once the soil has warmed up and all danger of frost has passed, sow the seeds directly into a prepared bed or container.
  2. Scatter the seeds thinly and press them into the soil’s surface.
  3. Keep the area moist until seedlings emerge.

Plant Care:

  • Position: Dianthus loves a sunny spot, so plant them where they can bask in full sun.
  • Soil: Well-drained, fertile soil is ideal. If your soil is heavy or clay-like, mix in some sand or grit to improve drainage.
  • Watering: Water regularly, but avoid waterlogging, as dianthus dislikes sitting in wet soil.
  • Feeding: Apply a balanced fertiliser every 4-6 weeks during the growing season to keep them blooming beautifully.
  • Deadheading: To encourage more flowers, regularly deadhead spent blooms. This will also keep your plants looking tidy.

Flowering:

  • Expect blooms from early summer, continuing through autumn if cared for well. Their lovely scent and bold stripes make them a garden favourite.

Tip: Dianthus also makes a wonderful cut flower. Snip a few stems for your home and enjoy their sweet fragrance indoors!

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