Our Dianthus seeds produce hardy perennial plants that are colouful, drought resistant, and bloom in the first year. Learn how to grow Dianthus in our simple online growing instructions. These short growing flowers are widely variable and work well in raised beds, window boxes, containers, and even hanging baskets.
When I Get My Seedling Home
Keep seedlings under very bright light to prevent legginess. Artificial lights are ideal, but a bright (ideally, south-facing) room will work for the short term. You may have to pot on seedlings more than once before they go out to allow for root growth. This is done by transplanting them into a slightly larger container with enough additional soil to keep the container mostly full. Keep the soil moist by daily watering and allow for free drainage so the plants are never sitting water.
Do not transplant outside until daytime temperatures are steadily 10°C (50°F) or warmer. This may mean keeping seedlings indoors for up to a month. The plants should not require any fertilizer until transplant time. Aim to space transplants 15-23cm (6-9″) apart.
Grow in rich, well drained soil with a pH range of 6.0-7.5. Water established plants only during dry spells. Cut back the short stems after flowering, and be sure to mulch if very cold weather is expected. Replenish with new seeds every 3-4 years.