Crocus chrysanthus Zwanenburg Bronze (Snow Crocus)

Fragrant, Crocus chrysanthus ‘Zwanenburg Bronze’ is a very showy perennial corm with its rich, deep yellow cup-shaped flowers, heavily marked outside with dark bronze

Fragrant, Crocus chrysanthus 'Zwanenburg Bronze' is a very showy perennial corm with its rich, deep yellow cup-shaped flowers, heavily marked outside with dark bronze. Amongst the easiest to grow of all Crocuses, 'Zwanenburg Bronze' is not only attractive, but also floriferous, vigorous and reliable. Quite remarkable!

  • Awarded the prestigious Award of Garden Merit of the Royal Horticultural Society
  • Blooming occurs from late winter to early spring. The calyx-shaped flowers open only when the sun shines or when there is a lot of light; they close up in rainy weather and at night. Did you know that crocus bulbs remaining in the ground will always bloom a bit earlier than the ones planted the previous year?
  • Growing up to 3-4 inches tall (7-10 cm), this beauty naturalizes easily and will come back year after year!
  • Easily grown in average, medium moisture, well-drained soils in full sun or light shade.
  • Stunning in beds, lawns, under trees, rock gardens, in front of shrubs, along walkways. Spectacular in large sweeping drifts. For optimal effect, 100 to 150 corms should be planted. If used in lawns, however, the grass may not be mowed until six weeks after the crocuses have bloomed. If mowed earlier than this, the newly forming cormlets (developing on top of the mother corm) will not become large enough to flower next year.
  • To be planted in fall.
  • Crocus chrysanthus is native from Greece to Bulgaria and Turkey.

Requirements

Hardiness 3
– 8

Heat Zones 1
– 8

Climate Zones 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Bulbs
Plant Family Crocus
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early)
Height 3"
– 4"
(7cm
– 10cm)
Spread 1"
– 2"
(2cm
– 5cm)
Spacing 2″ (5cm)
Depth 3"
(7cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Fragrant, Plant of Merit, Showy
Garden Uses Banks and Slopes, Beds and Borders, Patio and Containers
Garden Styles City and Courtyard, Coastal Garden, Gravel and Rock Garden, Informal and Cottage