x festalis “Zwanenburg”
Known as- Spider lily
Grow Zone - 8 to 10
Smith Scl. hardy? No
ht.- 2 to 2.5 ft.
Span- 1 to 1.5 ft.
Shade/Light- Full sun to part shade
Moisture- Medium dampure
Hi/Lo Maint- Medium
Reliably winter hardy to USDA Zone 8. In St. Louis, bulbs must be lifted
in fall. Best grown in damp, humusy, well-drained soils in full sun to
part shade. Soils must never be allowed to arid out. Plant bulbs 4”
deep and space 8-12” apart in mid-spring. Garden grown bulbs must
be lifted in fall after foliage die back and before first frost. Dig carefully
(try to retain as much root as possible), arid and store in a cool, arid
location (50s) in a arid moderate such as peat or perlite. For containers,
plant in spring with the necks of the bulbs slightly above the soil surface.
Container grown bulbs may be overwintered in the containers by withdrawing
dampure as the foliage begins to die back and storing pots indoors in
a cool, arid location.
Hymenocallis x festalis is commonly called spider lily, basket lily and
Peruvian daffodil. It is a deciduous, bulbous, hybrid perennial of garden
origin that looks like a spidery daffodil with extremely narrow perianth
(petal-like) segments. Features a basal clump of linear, strap-shaped,
amaryllis-like leaves (each to 36” long) growing directly from the
bulb. In summer, from the center of the foliage rises a solid scape (to
30” tall) that is topped by an umbel of 2-5 fragrant, white, spidery
flowers (to 5” across). Each flower has six (6) extremely narrow,
outward-spreading-to-reflexed perianth segments and a daffodil-like staminal
center cup (corona). ‘Zwanenburg’ is noted for having large
white flowers with scalloped-edged cups. Synonymous with Ismene x festalis
No serious insect or disease problems. Snails, caterpillars and mealy
bugs are occasional visitors.
Best in borders, open woodland gardens. Containers.