
What should I do after tulips fade in spring? What about daffodils?
This is a question that came up when speaking with my sister last night on the phone. According to the International Flower Bulb Centre (www.bulb.com):
“After tulip flowers have faded, "dead-head" them by clipping off the faded blooms so that they won't go to seed. Narcissi (daffodils) do not require dead-heading, just leave as is. The main requirement for bulb flowers in the post-bloom period is to leave the leaves alone so the plant can put its energy into "recharging" its bulb for next spring's performance. This "energy charge" is gained through photosynthesis as the plant uses the sun's energy to turn basic elements such as oxygen, nitrogen, phosphorous and potassium into food. This food is stored in the bulb's "scales," the white fleshy part of the bulb, for use next spring.
It is necessary to leave the green foliage exposed to the sun until it turns brown or six weeks have elapsed since blooming. Fight the urge to trim back or constrain the leaves during their die-back phase after looming. Don't bunch, tie, braid or cut bulb plant leaves during this period. Dealing with the fading foliage is basically one of those things that lovers of spring bulbs must deal with. The only management tip is camouflage.”
Another thing that can be done to help preserve flower bulbs is to dig them up every few years. Of course, you should dig them up after the leaves have completely died off, then place them in a shallow tray and cover them completely in dry peat moss, dry sand, or dry vermiculite. Store the tray in a cool dry place until the autumn, when you are ready to plant again. The same thing should be done every year with summer flowering bulbs. In the autumn, when planting Spring flowering bulbs, remove your summer flowering bulbs and trade places in your bulb storage (www.flower-garden-bulbs.com/storingflowerbulbs.html).

Spring flowering bulbs (Tulips, Daffodils, Hyacinth, etc.) should be dug up every few years because they multiply. In the photo on the left, the bulb on the left has already grown a new bulb but has not been divided yet. You can see that the one on the right has begun to grow a new bulb, but will not be ready for division for another year, perhaps two.
I have a friend, Chrystal, who found a giant mutant of a daffodil bulb that had been planted many years ago, but had never been split. Because of the growth of the daffodil, and it multiplying (or having baby bulbs), this thing had turned into something looking very strange. We were able to divide the single unit into about 35-40 individual daffodil bulbs which she stored and planted in the autumn for a great bloom the following Spring.