Outdoor Planting Chart for Bulbs
Click here to view our infomation about planting bulbs outdoors.
Use deeper depths for colder areas and in sandy soils.
*Additional planting information is in descriptions or footers.
‡Corms: soak 24 hours before planting.
| Flower | Distance Apart | Planting Depth |
|---|---|---|
| Allium, large | 6-14" apart | 4-8" |
| Allium, small | 1-4" apart | 3-4" |
| Camas Lily | 6-10" apart | 4-6" |
| Crocus | 1-4" apart | 3-4" |
| English Bluebell* | 3-4" apart | 3-5" |
| Fritillary, large* | 8-10" apart | 6-8" |
| Fritillary, small | 4-5" apart | 3-4" |
| Glory-of-the-Snow | 1-3" apart | 3-4" |
| Grape Hyacinth | 2-4" apart | 3-4" |
| Grecian Windflower ‡ | 3-4" apart | 2-3" |
| Hyacinth* | 3-4" apart | 5-8" |
| Iris, dwarf | 1-4" apart | 3-4" |
| Iris, dutch | 3-4" apart | 6-8" |
| Narcissus | 4-6" apart | 6-10" |
| Narcissus, Short | 3-4" apart | 4-6" |
| Siberian Squill | 2-4" apart | 3-4" |
| Snowdrop* | 2-4" apart | 3-4" |
| Spring Starflower* | 1-3" apart | 2-3" |
| Striped Squill | 2-4" apart | 3-4" |
| Summer Snowflake* | 2-3" apart | 2-3" |
| Tulip, garden* | 4-6" apart | 6-10" |
| Tulip, species | 2-3" apart | 3-4" |
| Winter Aconite‡* | 2-4" apart | 2-4" |