Table 2. Light, Hardiness, and Climatic Zone Usage for Summer and Fall Flowering Bulbs

Scientific Name
Light Requirement
Hardiness
2
3
4
5
6
7
8
9
10
11
Achimenes 25-50% Shade Tender II - - C C C C C C C C
Acidanthera bicolor Full-PM Sun Tender III - Sp/C Sp/C Sp/C Sp/C M M H H H
Agapanthus spp.* Full-AM Sun Semi-hardy - - C C C/M H H H H H
Albuca Full-PM Sun Tender III - - C C C C C M H H
Allium spp.* Full-PM Sun Hardy III to Tender III - M M H H H H H H -
Alstroemeria Full-AM Sun Hardy I - - C C C/M M H H H H
Amaryllis belladonna Full-PM Sun Semi-hardy - - - - M M M H H H
Amaryllis (Hippeastrum) Full-PM Sun Tender III C C C C C C/M C/M C/H C/H -
Anemone coronaria Full-PM Sun Tender III - - Sp Sp Sp M H H H -
Anthericum liliago Full-PM Sun Hardy I - - - M M H H H - -
Antholyza Full-PM Sun Tender III - - - - - - M H H H
Babiana Full-PM Sun Tender III - - C C C C M H H -
Begonia,
Tuberous Hybrids		 AM Sun to 50% Shade Tender III - Sp Sp Sp Sp Sp Sp M H -
Belamcanda chinensis Full-AM Sun Semi-Hardy - - - - M M H H H H
Bessera Full-PM Sun Tender III - - C C C C M/C H H H
Bletilla striata AM Sun to 50% Shade Semi-hardy - - - M H H H - - -
Bloomeria Full-PM Sun Tender III - - - - - - M H H H
Brodiaea (Triteleia) laxa Full Sun to 25% Shade Hardy I - - - M M H H - - -
Caladium AM Sun to 50% shade Tender I - - Sp Sp Sp Sp Sp Sp H H
Calochortus Full-AM Sun Semi-hardy - - - - - M M H H H
Camassia Full Sun to 25% Shade Hardy I - - M H H H - - - -
Canna Full-AM Sun Tender III - Sp/C Sp/C Sp/C Sp/C M/C M/C H H H
Cardiocrinum 25-50% Shade Semi-hardy - - - M M M M - - -
Chasmanthe Full-AM Sun Tender III - - - C C C M H H H
Chlidanthus fragrans Full-AM Sun Tender II - - C C C C C M H H
Clivia 25% Shade Tender II C C C C C C C C/M C/H -
Colchicum autumnale Full Sun to 25% Shade Hardy II - - M H H H H H - -
Colocasia Full-AM Sun Tender I - - - Sp Sp Sp Sp M H H
x Crinodonna Full-AM Sun Tender III - - C C C C M M H H
Crinum Full-AM Sun Tender III - - C C C C M M H H
Crocosmia (Montbretia) Full-AM Sun Semi-hardy - - C C M M H H H -
Crocus (Autumn Species) Full Sun to 25% Shade Hardy II - - M H H H H - - -
Curcuma AM Sun to 25% Shade Tender II - - C C C C C M H H
Curtonus Full-PM Sun Tender III - - - - - - M H H -
Cyclamen* AM Sun to 50% Shade Hardy I - - - M M M M M - -
Cyrtanthus AM Sun to 25% Shade Tender III - - C C C C C M H H
Dahlia Full-AM Sun Tender III - - Sp/C Sp/C Sp/C Sp/C C/M H H H
Dietes Full-AM Sun Tender II - - - C C C C/M M H H
Eremurus Full-AM Sun Hardy I - - - M M M H - - -
Eucharis 50% Shade Tender I - - C C C C C C M H
Eucrosia 25% Shade Tender I - - C C C C C M H H
Eucomis Full-AM Sun Tender II - - C C C C/M C/H H H H
Freesia Full-PM Sun Tender III - - Sp/C Sp/C Sp/C Sp/C Sp/C F F -
Galtonia Full Sun to 25% Shade Semi-hardy - - - - M M M H H -
Gladiolus* Full Sun Tender III - Sp Sp Sp Sp Sp/M Sp /M M H H
Gloriosa Full-PM Sun Tender II - C C C C C C C/M C/H C/ H
Habranthus Full-PM Sun Tender II - - C C C C C C/M H H
Haemanthus AM Sun to 25% Shade Tender II - C C C C C C C/M H H
Hemerocallis Full-AM Sun Hardy III - M M M M H H H H -
Hippeastrum (Amaryllis) Full-PM Sun Tender III C C C C C C/M C/M C/H C/H -
Homeria Full-PM Sun Tender II - - C C C C C M H H
Hymenocallis* Full-PM Sun Tender II - - C C C C M H H H
Incarvillea delavyi Full-PM Sun Tender III - - C C/M M H - - - -
Iris (Rhizomatous) Full-AM Sun Hardy II - M M H H H H H H H
Ixia Full-PM Sun Tender III - - Sp Sp M M F F - -
Kniphofia Full-PM Sun Hardy II - - - M M H H H - -
Lapeirousia Full-PM Sun Semi-hardy - - - C C C/M M M H H
Leucojum autumnale Full Sun to 25% Shade Semi-hardy - - - - M H H H - -
Liatris Full-AM Sun Hardy I - M M H H H H H - -
Lilium Full-PM Sun Hardy I to III - M M M H H H H H -
Lycoris aurea Full-PM Sun Semi-hardy to Hardy III - - - - - M M H H -
Lycoris radiata Full-PM Sun Semi-hardy to Hardy III - - - - - M M H H -
Lycoris squamigera Full-PM Sun Semi-hardy to Hardy III - - - M M M M H H -
Milla Full-PM Sun Tender III - - - C C C C/M H H H
Montbretia (Crocosmia) Full-AM Sun Semi-hardy - - C C M M H H H -
Moraea Full-AM Sun Tender II - - - C C C C/M H H H
Nerine Full-AM Sun Tender III - C C C C C M H H H
Nomocharis AM Sun to 25% Shade Hardy II - - M M M M - - - -
Ornithogalum (Tender species) Full-PM Sun Tender III - - Sp Sp Sp Sp M H H -
Oxalis (Tender species) Full Sun to 25% Shade Tender III - - Sp Sp Sp M M H - -
Polianthes Full-PM Sun Tender II - - - Sp Sp Sp M H H H
Ranunculus Full-PM Sun Tender III - - Sp Sp Sp Sp M H - -
Rhodohypoxis Full-Am Sun Tender III - - C C C C C/M H H H
Sandersonia PM-AM Sun Tender II - C C C C C C C/M H H
Scadoxus AM Sun to 25% Shade Tender II - C C C C C C C/M H H
Schizostylis Full-PM Sun Tender III - - - - - - M H H H
Sparaxis Full-PM Sun Tender III - - Sp Sp Sp M F/M F - -
Sprekelia Full-AM Sun Tender III - - - - - - M H H H
Sternbergia lutea Full-PM Sun Semi-hardy - - - - - M M H H H
Tigridia Full-PM Sun Semi-hardy - - Sp Sp Sp M M H H H
Triteleia laxa (Brodiaea) Full-Sun to 25% Shade Hardy 1 - - - M M H H - - -
Tritonia Full-PM Sun Tender III - - Sp Sp Sp Sp M H H H
Tulbaghia violacea Full-PM Sun Tender III - - - C C C C M H H
Vallota North: Full Am Sun; South: 25% Shade Tender III - C C C C C C M H H
Vetheimia PM Sun to 25% Shade Tender II - - - C C C C M P P
Watsonia Full-PM Sun Tender III - - - Sp Sp Sp M H H H
Zantedeschia Full Sun to 25% Shade Tender III C C C C C C C/M H H H
Zephyranthes Full-PM Sun Semi-hardy - - C C C C/M H H H H

* Highly dependent on species

1 Codes Used: C=Primary Use in Containers; H=Hardy; M= Hardy with a mulch; Sp = plant in Spring, harvest in fall; F=Fall Planted