| Flowering Period |
Genus and Species |
Basic Flower Colors |
Depth of Planting (inches/cm) |
Spacing Between Bulbs (inches/cm) |
Average Plant Height (inches/cm) |
Selected Garden Usages |
| Very Early Spring |
Crocus chrysanthus |
Blue Yellow White |
5/12.5 | 0-2/0-5 | 3/7.5 | Rock gardens, ground covers, lawns, beds, woodland gardens. |
| Crocus sieberi |
Blue | 5/12.5 | 0-2/0-5 | 3/7.5 | Rock gardens, ground covers, lawns, beds, woodland gardens. | |
| Crocus tommasinianus |
Purple | 5/12.5 | 1-2/2.5-5 | 4/10 | Rock gardens, ground covers, lawns, beds, woodland gardens. | |
| Eranthis spp. | Yellow | 5/12.5 | 1/2.5 | 4/10 | Rock gardens, beds, woodland gardens. | |
| Galanthus spp. | White | 5/12.5 | 1/2.5 | 5/12.5 | Rock gardens, beds, woodland gardens. | |
| Iris reticulata, histroides, danfordiae |
Blue Purple Yellow |
5/12.5 | 1/2.5 |
6/15 | Rock gardens, beds, woodland gardens. | |
| Narccissus (Paperwhites) Tender III |
White | 5/12.5 | 3/7.5 |
14/35 | Beds, borders, rock gardens, meadows, woodland gardens. | |
| Early Spring |
Anemone blanda cvs. |
Rose Blue White |
5/12.5 | 2/5 | 4/10 | Rock gardens, beds, woodland gardens. |
| Chionodoxa spp. | Blue | 5/12.5 | 1/2.5 | 5/12.5 | Rock gardens, beds, ground covers, lawns, woodland gardens. | |
| Crocus flava | Yellow | 5/12.5 | 0-2/0-5 | 3/7.5 | Rock gardens, beds, ground covers, lawns, woodland gardens. | |
| Crocus vernus | Purple White & Striped |
5/12.5 | 1-2/2.5-5 | 4/10 | Rock gardens, beds, ground covers, lawns, woodland gardens. | |
| Hyacinthus orientalis |
Blue Pink Red Lavender White Yellow Orange |
8/20 | 2/5 | 10/25 | Beds, borders, rock gardens. | |
| Narcissus Hardy I and II |
White Yellow Bicolors |
8/20 | 3/7.5 | 8-20/20-50 | Beds, exhibition bulbs, borders, fresh cut flowers, ground covers, woodland gardens. | |
| Scilla siberica | Blue | 5/12.5 | 1/2.5 | 6/15 | Beds, borders, rock gardens,lawns, woodland gardens. | |
| Scilla tubergeniana |
Whitish | 5/12.5 | 2/5 | 5/12.5 | Beds, borders, rock gardens, lawns, woodland gardens. | |
| Middle Spring |
Allium neapolitanum |
White | 5/12.5 | 4/10 | 15/37.5 | Beds, borders, rock gardens. |
| Anemone coronaria, fulgens - Hybrids |
Various Colors |
5/12.5 | 2/5 | 10/25 | Beds, fresh cut flowers. | |
| Convallaria majalis |
White | 3/7.5 | 2/5 | 8/20 | Beds, rock gardens, woodland gardens | |
| Dietes | White Yellow |
1/2.5 | 12/30 | 36/90 | Beds, borders, rock gardens. | |
| Erythronium 'Pagoda' |
Yellow | 5/12.5 | 2/5 | 12/30 | Beds, rock gardens, ground covers , woodland gardens. | |
| Fritillaria imperialis |
Red Yellow Orange-Red |
8/20 | 12/30 | 30/75 | Beds, ground covers, exhibition bulbs. | |
| Fritillaria meleagris |
White Purple |
5/12.5 | 2/5 | 8/20 | Beds, rock gardens, ground covers, woodland gardens. | |
| Ipheion (Triteleia) uniflorum |
Lt. Blue | 5/12.5 | 3/7.5 | 4/10 | Rock gardens, lawns, woodland gardens. | |
| Leucojum aestivum |
White | 5/12.5 | 2/5 | 14/35 | Beds, rock gardens, ground covers , woodland gardens. | |
| Muscari armeniacum |
Dk. Blue | 5/12.5 | 3/7.5 | 6/15 | Rock gardens, woodland gardens. | |
| Muscari azureum |
Lt. Blue | 5/12.5 | 1/2.5 | 6/15 | Rock gardens, woodland gardens. | |
| Muscari botryoides album |
White | 5/12.5 | 1/2.5 | 6/15 | Rock gardens, woodland gardens. | |
| Narcissus Hardy I and II |
White Yellow Bicolors |
8/20 | 3/7.5 | 8-20/20-50 | Beds, borders, fresh cut flowers, ground covers, woodland gardens. | |
| Puschkinia libanotica |
Bluish- white |
5/12.5 | 2/5 | 5/12.5 | Rock gardens, beds, ground covers, woodland gardens | |
| Ranunculus | Various Colors |
5/12.5 | 4/10 | 12/30 | Beds, borders, fresh cut flowers | |
| Scilla (Endymion) campanulata |
Blue Pink White |
5/12.5 | 2/5 | 12/30 | Beds, borders, rock gardens, ground covers, woodland gardens. | |
| Tulipa cvs. | Most colors |
8/20 | 2/5 | 6-16/15-40 | Beds, borders, rock gardens, fresh cut flowers | |
| Late Spring |
Allium aflatunense |
Purple | 5/12.5 | 3/7.5 | 25/62.5 | Beds, rock gardens, meadows, fresh cut flowers,ground covers. |
| Allium cowanii |
White | 5/12.5 | 4/10 | 16/40 | Beds, fresh cut flowers. | |
| Allium karataviense |
Lilac to Pink |
5/12.5 | 8/20 | 10/25 | Beds, rock gardens, woodland gardens. | |
| Amaryllis (Hippeastrum) |
Various colors |
8/20 | 10/25 | 30/75 | Beds, borders, exhibition bulbs, fresh cut flowers. | |
| Camassia spp. | Blue | 8/20 | 4/10 | 24/60 | Beds, meadows, woodland gardens. | |
| Iris hollandica (Dutch Iris) |
Various colors |
5/12.5 | 4/10 | 20/50 | Beds, borders, fresh cut flowers. | |
| Ixiolirion montanum (pallasii) |
Lt. purple |
5/12.5 | 5/12.5 | 20/50 | Beds, rock gardens, ground covers, woodland gardens. | |
| Muscari comosum plumosum |
Purple | 5/12.5 | 4/10 | 6/15 | Borders, rock gardens, woodland gardens. | |
| Narcissus Hardy I and II |
Yellow White Bicolors |
8/20 | 4/10 | 8-20/20-50 | Beds, borders, fresh cut flowers, ground covers, woodland gardens. | |
| Ornithogalum umbellatum |
White | 5/12.5 | 3/7.5 | 5/12.5 | Beds, borders, ground covers, rock gardens, woodland gardens. | |
| Tulipa cvs. | Various colors |
8/20 | 2/5 | 6-16/15-40 | Beds, borders, fresh cut flowers | |
| Very Late Spring to Early Summer |
Allium caeruleum | Blue | 5/12.5 | 2/5 | 20/50 | Beds, fresh cut flowers, exhibition bulbs. |
| Allium christophii |
Silvery Purple |
5/12.5 | 12/30 | 20/50 | Beds, fresh and dried cut flowers, rock gardens, ground covers. | |
| Allium giganteum |
Purple | 8/20 | 12/30 | 40/100 | Beds, exhibition bulbs, fresh cut flowers | |
| Allium moly (luteum) |
Yellow | 5/12.5 | 3/7.5 | 10/25 | Beds, rock gardens, woodland gardens, ground covers. | |
| Allium oreophilum |
Red | 5/12.5 | 3/7.5 | 10/25 | Beds, rock gardens, woodland gardens, ground covers. | |
| Allium sphaerocephalon |
Reddish Purple |
5/12.5 | 3/7.5 | 30/75 | Beds, borders, fresh and dried cut flowers. | |
| Brodiaea (Triteleia) laxa |
Lt. Blue | 5/12.5 | 4/10 | 18/45 | Beds, rock gardens, fresh cut flowers. | |
| Eremurus Hybrids |
Various Colors |
5/12.5 | 12/30 | 30-70/ 75-175 |
Beds, fresh cut flowers, exhibition bulbs. | |
| Eucomis bicolor | Green- White |
5/12.5 | 12/30 | 18/45 | Exhibition bulbs, fresh cut flowers, beds, woodland gardens. | |
| Iris anglica | Blue Purple |
8/20 | 6/15 | 20/50 | Beds, fresh cut flowers, exhibition bulbs. | |
| Ixia Hybrids |
Various Colors |
5/12.5 | 3/7.5 | 16/40 | Beds, fresh cut flowers. | |
| Lilium candidum | White | 1/2.5 | 5/12.5 | 40/100 | Beds, exhibition bulbs, rock gardens. | |
| Lilium Asiatic Hybrids |
Various Colors |
8/20 | 5/12.5 | 36/90 | Beds, fresh cut flowers, borders. | |
| Lilium Oriental Hybrids |
Various Colors |
8/20 | 6/20 | 48/120 | Beds, fresh cut flowers, borders. | |
| Sparaxis Hybrids |
Various Colors |
5/12.5 | 3/7.5 | 10/25 | Beds, fresh cut flowers. |