DIVIDING BULBS
Certain bulbs need dividing or separating in order
to maintain a healthy, flowering stand. Crowded bulbs are less likely
to produce a high quantity and quality flowers. When flower number and
size starts to diminish, consider separating the bulbs and replant.
Bulbs planted at recommended depths initially require
less dividing and resetting.
Spring flowering bulbs such as daffodils, tulips and
hyacinthsshould be divided in September or October. Granted, it is difficult
to determine the location of the bulbs without staking or mapping them
out previously. Care should be taken when digging to prevent damage to
bulbs. It usually is easier to dig a large area and separate bulbs then
trying to dig individual bulbs separately.
If bulbs are planted among trees, shrubs or perennials
consider replacing the bulbs every three to five years instead of separating.
This minimizes damage to the root system of the nearby plants.
Summer flowering bulbs can be divided in early April
or late fall.
Some bulbs, including Surprise Lilies (Lycoris) may
not appear to need dividing. However, plants will produce more flowers
if divided.
When dividing or separating bulbs, carefully remove
side bulbs from the main bulb. Replant at correct spacings.
The following table provides a guideline for dividing
bulbs.
| Bulb |
Years
to Divide |
| Tulips |
3 - 5 |
| Daffodils |
3 - 6 |
| Hyacinths |
2 - 3 |
| Lilies |
4 - 6 |
| Surprise
Lily (Lycoris) |
3 - 5 |
| Iris (Bulbous
types) |
3 - 6 |
| Alliums |
4 - 8 |
| Crocus |
seldom
needed |
| Grape Hyacinths
(Muscari) |
seldom
needed |
|