Reiman Gardens switched to A.D.R. Bulbs 12 years ago and has never looked back. The bulbs are high quality and the customer service is exceptional. Chris and Philipp are always willing to answer my many questions! We take pride in supporting one of the last remaining bulb farms that grows and exports.
Sarah Rummery
, Reiman Gardens
« Previous Plant | Next Plant »
Denmark is a Triumph tulip, celebrated for its bold red blooms brushed with warm orange undertones and a glowing, sunlit center. It blooms in mid‑spring on medium‑height, sturdy stems that reach 14 to 16 inches, offering a strong, reliable presence in the garden.
This variety thrives in full sun with well‑drained soil and is valued for its long‑lasting, weather‑resistant flowers that hold up beautifully through unpredictable spring conditions. Denmark is an excellent choice for forcing in pots, as well as for landscaping and cut‑flower production.
Planting: Plant in fall when soil temperatures drop below 55°F. Set bulbs 6–8 inches deep with the pointed end up. Triumph tulips adapt well to borders, containers, and large-scale plantings thanks to their uniform habit and wide color range.
Spacing: Space bulbs 4–6 inches apart. For a cohesive display, plant in groups of 10 or more—ideal for both solid color blocks and curated mixes.
Light: Full sun encourages strong, upright stems and bold color. While light shade is tolerated, performance is best with at least 6 hours of direct light.
Soil: Provide well-drained, neutral to slightly acidic soil (pH 6–7). In poorly drained areas, amend soil or raise beds to prevent bulb rot.
Watering: Water after planting to settle the soil. During spring, water only in extended dry spells—too much moisture can shorten bloom duration.
Temperature & Dormancy: Requires 12–16 weeks of cold (below 50°F) for proper rooting and flower initiation.
Fertilization: Apply a balanced bulb fertilizer when planting and again in spring as foliage emerges to support stem strength and bloom quality.
Pests: Squirrels may dig recently planted bulbs—use mulch or mesh to deter them. Deer will eat buds and foliage, especially in early spring, so apply repellents or fence vulnerable areas.
Disease: To prevent Botrytis (Tulip Fire), plant only healthy bulbs in sunny, airy spots. Avoid overhead watering. Remove and destroy any infected plant material—do not compost. Rotate planting locations yearly and avoid replanting in previously affected sites for three years.
Check back soon for additional details.