When buying spring-flowering bulbs, look for ones that are firm, free of mold and large compared with others of their kind. A few bulbs, such as winter aconite, will seem shriveled when you buy them. Soak these in water overnight before planting. Usually, bulbs come with planting instructions, and a few must be planted as soon as possible. Avoid exposing them to temperatures higher than 75 degrees.
Most bulbs require well-drained soil.
Many, such as tulips, thrive in areas that remain sunny and dry in the summer. Camassia and summer snowflake are two bulbs that tolerate moist soil and partial shade. By Marty Hair. The Boston Globe contributed to this report.