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Description of some non-hardy bulbs

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Acidanthera (Gladiolus callianthus) likes full sun, but will tolerate partial shade
Photo: Jardin botanique de Montréal (Gilles Delisle)  
Gladiolus callianthus

Other species

Full sun

Species Height Spacing Planting depth When to plant and store
Corn lily
Ixia cv.
45 cm 7 cm 7 cm Planting: end of May
Storage: September
Gardening tip: treat corn lilies like gladioli
Harvest brodiaea
Brodiaea coronaria
30 to 45 cm 10 to 15 cm 10 to 15 cm Planting: May
Storage: September
Persian buttercup
Ranunculus asiaticus cv.
30 cm 10 cm 5 cm Planting: end of May
Storage: September
Gardening tip: store Persian buttercup tubers in vermiculite
Spider lily
Hymenocallis x festalis
40 cm 25 cm 15 cm Planting: end of May
Storage: September
Tiger flower
Tigridia pavonia
30 cm 10 to 15 cm 5 to 8 cm Planting: end of May
Storage: September
Gardening tip: treat tiger flowers like gladioli
Wanderflower
Sparaxis tricolor
40 cm 7 cm 7 cm Planting: end of May
Storage: September

Full sun or partial shade

Species Height Spacing Planting depth When to plant and store
Acidanthera
Gladiolus murielae
(syn.= Acidanthera murielae)
60 cm 10 cm 15 cm Planting: June
Storage: October
Agapanthus
Agapanthus praecox and cultivars
50 to 90 cm 30 to 45 cm 5 cm Planting: April
Storage: October
Poppy anemone
Anemone coronaria
20 to 30 cm 10 to 15 cm 5 cm Planting: May
Storage: October
Gardening tip: let anemone tubers sit in water for 24 hours before planting

Partial shade

Species Height Spacing Planting depth When to plant and store
Florist’s calla
Zantedeschia cv.
60 to 50 cm 50 cm 5 to 10 cm Planting: April
Storage: September
Gardening tip: treat florist’s callas like tuberous begonias. However, calla tubers must be planted vertically.

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