Scientific Name
Scilla campanulata (Endymion, Hyacinthoides)
Common Name
Spanish Blue-Bells, Wood Hyacinths
SCILLA (ENDYMION, HYACINTHOIDES)
campanulata (hispanicus)
(Blue, pink and white flowers)
A. Flowering Characteristics
Scilla campanulata flowers in mid-spring (April/May) for 2-3 weeks and plants are 10-12 inches tall.
B. General Characteristics
1. Origin of species: Portugal, Spain
2. Common names: Spanish Blue-Bells, Wood Hyacinths
3. Geophyte organ: Bulb
4. Hardiness type: Hardy II - Injured at temperatures below 14 degrees F (-10C) when planted.
5. Natural reproductive systems and growth and development requirements: Reproduces by bulblets and requires a warm (60 to 70F) - cool (28 to 32F) - warm (45 to 60F) annual thermoperiodic cycle.
6. Primary uses: Beds, borders, rock gardens, ground covers, and woodland gardens.
C. Cultural Information
1. Bulb sizes: 6/7, 7/8, 8/10, 10/up cm, in circumference.
2. Planting density: 1-2 inches apart, 15-20 per sq. ft.
3. Planting depth: 5 inches to base of bulb.
4. Planting time: Fall
5. Perennialization habit: 1990 USDA Climatic Zone 3 with mulch, Zones 4 to 8 without mulch.
6. Light requirements: Full sunlight, to PM only or AM only sunlight, to 25% shade.
7. Moisture: Tolerates summer drought, but requires moisture during growing season.
8. Animal susceptibility: Not reported.
D. Companion Plants:
Anemone pulsatilla, Anemone sylvestris, Aquilegia, Chaenomeles japonica, Dicentra, ferns, Forsythia, Helleborus orientalis, Hosta, Jasminum nudiflorum, Myosotis, Phlox divaricata, Phlox stolonifera, Primula, Rhododendron spp. (deciduous and evergreen), Cotoneaster, Berberis, Acer palmatum, Deutzia gracilis, Weigela.

Holland Technical Service Bulletin Number 37 was prepared for the WWW system by A.A. De Hertogh, L.B. Gallitano, G. Hartley, M.E. Traer, and A.B. Russell, Department of Horticultural Science, NC State University. The information was obtained not only from original research conducted by the authors but also from databases released by other sources. This Bulletin was published by the International Flower Bulb Center (IBC), Hillegom, the Netherlands on behalf of the Dutch Flower Bulb Industry. Because of the various climates in North America and year-to-year variability of the weather, the IBC cannot and does not accept responsibility for divergent results that may arise using information obtained from this document or site. Photographs copyright @1997 by A.B. Russell and A.A. De Hertogh. Computer programming by Miguel Buendia, graphics by Brad Capel.