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

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Tulipa Triumph 'Dean'

Tulip

Hybrids of Single Early and Darwin Hybrid Tulips
Feature angular flowers on sturdy stems
The Triumph class offers the largest and most stunning assortment of colors

  • »  The top choice for Easter and Mother's Day pot production
  • »  Exceptional for mass plantings

Tulipa Calculator
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Growing and Maintenance Tips for Tulipa Triumph 'Dean'

All wholesale Spring flowering bulbs must be planted in the Fall
Soil temperatures must be 55 F or below to ensure proper root development
The optimal planting time is when night-time temperatures are 40-50 F
The ideal soil pH level for bulbs is between 6 and 7
Most bulbs require a minimum cold frame of 6 weeks to root properly
Tulips in particular need 12 to 16 weeks in the dark with a sustained soil temperature below 50° F

Additional Information
Height 20 Inches
Spread 4-6 Inches
Spacing 4-6 Inches
Hardiness Zone 3-8
Color Red
Detailed Description for Tulipa Triumph 'Dean'

Storage Tips
Store bulbs in a cool, dry spot with good air circulation and low humidity
Most bulbs can tolerate temperatures between 38 and 70 F
Protect from heat, frost and strong sunlight
Pre-cooled bulbs for the South must be planted immediately

Avoid These Common Pitfalls
Not sure if a bulb is viable? Look for bulbs that are firm to the touch
Bulbs hate "wet feet" - never plant in areas with poor drainage or standing water
Planting when the soil temperature is too warm is the primary cause of stunted blooms
Road salt and de-icing compounds are harmful to bulbs - avoid areas where plowed snow accumulates
Crop rotation is key - don't plant the same type of bulb in the same spot year after year to protect against Rhizoctonia
Don't plant too shallow - it's essential that bulbs are planted at least 3 times their height into the soil
Plant bulbs firmly in the soil with their pointy end up and basal plate down - not all bulbs will right themselves underground
Avoid areas that do not receive at least half a day of sun
Plant away from invasive tree and perennial root systems that can strangle bulb roots & compete for limited water and nutrition

Wholesale Only Flower Bulbs Direct From Our Family Farms in Holland
A.D.R. Bulbs supplies wholesale tulip flower bulbs, specializing in bulk tulips for landscape professionals & retail packaged tulip bulbs for garden centers
Top size, elite quality, wholesale only flower bulbs since 1946

Great Companions for Tulipa