Using animal manure to fertilize Lilies

This may encourage basal rot. Preferably use bone meal or a complete fertilizer high in potash such as 5-10-10.

Failure to distinguish between base-rooting Lilies and stem-rooting Lilies

The base-rooting types should be placed with the tips of the bulbs 2 or 3 inches below the surface. The stem-rooting types should be planted 6 or 8 inches deep.

Using manure as a winter mulch for Tulips

This is likely to cause trouble as manure sometimes harbors Botrytis blight. Use clean straw, or salt meadow hay, and apply after a hard freeze.

Transplanting Narcissus too shallowly

In light soil they should be set with their bases 6 to 8 inches deep. In heavy soils, 5 to 7 inches deep.

Planting bulbs upside down

It puts them to the trouble of reversing themselves. Usually the pointed end should be up. When in doubt, consult someone who knows.

Forcing bulbs that are planted in pots before they have developed good root systems

Pot grown bulbs such as Tulips, Hyacinths and Daffodilsmust have good root systems developed before subjecting them to forcing temperatures. After the bulbs are potted in the fall, bury them out of doors under six inches of sand or ashes for 6 or 8 weeks before bringing them inside.

Keeping bulbs of Tulips, Daffodils or Hyacinths past the fall season to plant in spring

They will not flower. These need a long term of prior roofing before they will bloom. Therefore, they must be planted in fall in order to develop bloom for the following spring.

Failing to recognize the value of the lesser bulbs

Chionodoxa, the wild Crocuses and diminutive Narcissi are, because of their small size, particularly valuable in the intimate garden and the rock garden.

Planting hardy bulbs in poorly drained soil

Will shorten the life of the bulbs. New bulbs will be poorly developed and flowers will be inferior. Development ceases after a time or the bulbs will rot off.

Planting old bulbs of Montbretias (Tritonin) for flowers

Old bulbs mostly produce foliage but no flowers. Use young bulbs for flowering. The old bulbs can be planted to mother new bulbs.

Replanting Tulips over and over again in the same beds without resting or changing the soil

Repeated plantings of Tulips in the same soil invites diseases such as fire blight. Three years is the limit of time that a Tulip bed should be used. Then the location should be changed, or the soil replaced. Tulip beds should be rested at least two years, and well limed in the interim.

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