How Deep to Plant Carnation Plants?

Carnations last for weeks when cut.

Carnations (Dianthus caryophyllus) may be annual, perennial or biennial. These long-lasting cut flowers grow well in full sun. Plant carnations from seed or take cuttings from existing carnation plants, root the cuttings and plant them.

Planting Seeds

Plant carnations from seed in late spring or early summer. Space seeds 10 to 12 inches apart and plant them 1/8 inch deep in the garden bed.

Dividing Carnations

Existing perennial plants can be divided in half to create new plants. Dig up the old carnation, then cut the root clump into equal pieces that have both roots and shoots pointing up. The University of Minnesota Extension recommends dividing perennial carnations every one to three years in the early spring.

Planting Cuttings and Transplants

Dig one hole for each carnation plant that is twice as wide and just as deep as the pot holding your rooted cutting or transplant. For example, if you planted the cutting in a 4-inch pot, make your hole 4 inches deep and 8 inches wide. Gently tug the new carnation from the pot and place it in the hole so it rests at the same depth as it was planted. Firm the soil around the plant.

References

• University of Vermont: Carnation
• Maryland Cooperative Extension: Carnation Production and Consumer Care
• University of Minnesota Extension: Dividing Perennials