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Staircase™ Yellow Lupine

Lupinus polyphyllus 'Staircase Yellow'

  • Proven Winners® Staircase™ Yellow Lupine Delivers Vibrant Golden Spires that Bloom Spring Through Summer
  • Cold Hardy: Thrives in Zones 4-8
  • Grows 1-2 ft Tall and Wide
  • Showy Yellow Blooms From Early Summer to Late Spring
  • Deer Resistant, Rabbit Resistant
Regular price $4980
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Plant Size

Specifications

Plant specifications
Plant Characteristics Cold hardy, Flowering, Deer-resistant, Drought resistant, Attracts Butterflies, Attracts pollinators
Hardiness Zone 4a to 9b
Sunlight Full sun, Partial shade
Height 1-2 ft
Width 1-2 ft
Watering Needs Moderate
Preferred Soil Loamy, Peaty
Growth Rate Moderate
Growth Habit Upright
Blooms In Spring, Summer
Flower Color Yellow
Foliage Color Green
Pet Safety Toxic to pets
Suitable Space Outdoors
Botanical Name Lupinus polyphyllus 'Staircase Yellow'
Species polyphyllus
Cultivar Staircase Yellow
Class Magnoliopsida, Fabidae
Does Not Ship To AK, HI, ID, MT, PR

Frequently Asked Questions

How tall does Staircase™ Yellow Lupine grow at maturity?

  • Staircase™ Yellow Lupine reaches 18-24 inches tall and wide at maturity, forming upright, statuesque clumps. This compact perennial stays under 2 feet, making it perfect for front to mid-border plantings in zones 4-8.

Does this variety rebloom?

  • Yes, Staircase™ Yellow Lupine will rebloom later in the season if you deadhead the spent flower spikes after its main late spring to early summer show. This reliable reblooming habit extends the golden display well into the growing season. Deadhead promptly after the first flush fades for best results, available at naturehills.com.

Can Staircase™ Yellow Lupine be grown in containers?

  • Yes, Staircase™ Yellow Lupine grows well in containers given its compact 18-24 inch size. Choose a deep pot (at least 12 inches) to accommodate the taproot, and ensure good drainage since lupines dislike wet feet. Best success in zones 4-8 with cool conditions.

How much moisture does it require?

  • Staircase™ Yellow Lupine prefers consistent, moderate moisture but is drought-tolerant once established. This perennial thrives in zones 4-8 with well-draining soil that doesn't stay waterlogged. Water regularly during its late spring to early summer bloom period, then reduce frequency as it matures.

What is its cold hardiness temperature?

  • Staircase™ Yellow Lupine is hardy in USDA zones 4-8, tolerating winter temperatures down to -30°F. This Proven Winners® perennial thrives in cooler climates and benefits from cold winter periods for best flowering. Shop at Nature Hills for reliable cold-hardy lupines.

How should it be mulched?

  • Apply a 2-3 inch layer of organic mulch around Staircase™ Yellow Lupine, keeping it several inches away from the crown. This cool-climate perennial benefits from mulch that retains moisture while allowing good air circulation. Refresh the mulch each spring before the late spring bloom period.