Choosing Bulbs for Shady Gardens
By The National Gardening Association, Bob Beckstrom, Karan Davis Cutler, Kathleen Fisher, Phillip Giroux, Judy Glattstein, Mike MacCaskey, Bill Marken, Charlie Nardozzi, Sally Roth, Marcia Tatroe, Lance Walheim, and Ann Whitman from Gardening All-in-One For Dummies
Flower bulbs that bloom in the spring are good choices for normally shady gardens. Many of these little bulbs flower so early in the year that, according to the calendar, it isn’t even spring yet. Shade beds get lots of sun at this time of year because trees and shrubs have not yet leafed out.
These bulbs are named in sequence by their Latin (botanical) names, making it easier to look them up in a catalog index when you want to order some for your garden:
Grecian windflower (Anemone blanda): Daisy-like flowers in blue, pink, or white. This bulb blooms at the same time that you’d put pansies and primroses in the garden. Additionally, the lower-growing Grecian windflower pairs nicely with smaller daffodils and the earlier-flowering, lower-growing tulips, adding a soft accent.
Glory of the snow (Chionodoxa luciliae): This bulb blooms while the weather is still a little nippy. It has charming blue flowers, several along a stem that’s only a few inches high. It’s obliging about increasing so give it room to romp. Try it under early-flowering shrubs or shrubs with long-lingering fruits from last autumn.
Winter aconite (Eranthis hyemalis):, This plant flowers before the snow is over. Yellow buttercup-like flowers on stems only a few inches high add early color to the woodland garden. This little treasure needs a place where it won’t be disturbed when dormant.
Dogtooth violet (Erythronium species): It looks like a miniature lily, with a nodding flower or two in white, yellow, or pink. The upswept petals give a graceful look to a plant that’s less than 1 foot (30 cm) tall. When planting, handle the dormant corms gently because they bruise easily. Give the dogtooth violet a special place to be admired, near a path where you can easily pause to appreciate it.
Guinea hen flower (Fritillaria meleagris): Each bulb has one or sometimes two nodding bell-like flowers clearly marked in purple and white, like a checker board. Either you like it or you don’t, but no one’s indifferent! Try fritillarias for something new and different, because it’s easier to grow than its uncommon appearance suggests.
Snowdrop (Galanthus nivalis): This plant is arguably the most popular of the little, early blooming bulbs for shady places. Its fresh white flowers are a sure sign of winter’s end. Sturdy and easy to grow, snowdrops come in more varieties than you may suspect.
Wood hyacinth (Hyacinthoides hispanica): This vigorous plant is best suited to casual places where it has space to spread, or paired with shrubs that will stand up to its habit of extending its territory. It’s not as fragrant as its namesake, but spikes of blue, bell-like flowers make it all worthwhile.
Siberian squill (Scilla siberica): This excellent little bulb sports electric-blue flowers that follow hot on the heels of glory of the snow. The few little flower bells face downward on each stem. As bulbs multiply by seed and offset, they spread into pools of blue, irresistible in woodland, delightful in a lawn too thin and patchy to pass as a putting green.
Daffodils (Narcissus species and cultivars): Daffodils are easy to grow, great in gardens and vases alike, and untouched by pests such as deer, rabbits, chipmunks, or voles. You have your choice of tall stately ones, small charming ones, singles or doubles, and even a few that are fragrant. Daffodils and narcissuses are the same thing.
Jonquil (which is what folks in the southeastern United States name every yellow narcissus) is more accurately used for a somewhat later-flowering group of usually fragrant daffodils that are mostly yellow (but earlier-flowering daffodils can also be yellow).

Gardening Glossary
annuals
Plants that complete their entire life cycle within one growing season. The plant germinates from seed, grows and blooms, and then produces seed and dies.

Gardening Glossary
biennials
A plant that take two growing seasons to complete its life cycle. It germinates and grows leaves and stems in the first year; produces flowers and fruit (seed) in the second, and then dies.

Gardening Glossary
bolt
When a plant flowers or produces seed prematurely.

Gardening Glossary
cold frame
A wooden or concrete block box in which you can grow plants or hold dormant during the cold winter months.

Gardening Glossary
cole crops
A family of vegetables, including broccoli, cabbage, cauliflower, kale, and Brussels sprouts. They thrive in cooler weather.

Gardening Glossary
complete fertilizer
Any fertilizer that contains all three of the primary nutrients, N-P-K (nitrogen, phosphorus, potassium). Phrase is based on regulations governing the fertilizer industry. Does not mean that the fertilizer literally contains everything a plant needs to thrive.

Gardening Glossary
deadheading
The practice of pinching or cutting off spent flowers

Gardening Glossary
evaporative-pad humidifier
A humidifier in which fans blow across a moisture-laden pad that sits in a reservoir of water.

Gardening Glossary
harden off
The process of acclimating plants grown indoors gradually to the brighter light and cooler temperatures of the outside world.

Gardening Glossary
hardiness
The ability of a plant to survive is called its hardiness.

Gardening Glossary
humus
A stable end product of organic-matter decomposition that's believed to increase microbial activity in soil, improve soil structure, and enhance the root development of plants.

Gardening Glossary
Bacillus thuringiensis Bt
An effective bacteria that attacks only the larvae of caterpillar family insects. It is safe to other insects, animals, and humans.

Gardening Glossary
macronutrients
Mineral nutrients that plants need in the largest quantities: nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur.

Gardening Glossary
mulch
Organic or inorganic material placed over the surface of soil, usually directly over the root zone of growing plants. Used to conserve moisture, kill weed seedlings, modify soil temperature, provide attractive covering to garden beds.

Gardening Glossary
organic matter
Once-living stuff like compost, sawdust, animal manure, ground bark, grass clippings, and leaf mold (composted tree leaves). Used to enrich soil and improve soil texture.

Gardening Glossary
perennials
Any plant with a life cycle of three or more years. Herbaceous (non-woody) perennials include flowering plants and herbs, mainly. Woody perennials include trees and shrubs. Longevity depends on the plant and growing conditions.

Gardening Glossary
pH
The measure of soil's acidity. Soil with low pH means it's too acidic; soil with high pH means it's alkaline. Most plants grow best in soil with a pH value between 6.5 and 7.2. Neutral soils measure 7.

Gardening Glossary
photosynthesis
The process through which plants take nutrients from the air and from the water in the soil to produce sugars that fuels the plant's growth.

Gardening Glossary
primary nutrients
Nitrogen, phosphorous, and potassium are the three nutrients plants need in the largest quantities.

Gardening Glossary
root crops
Plants with edible underground roots such as onions, carrots, beets, potatoes, turnips. Most root crops are cold-weather crops.

Gardening Glossary
self-blanching
A type of cauliflower with leaves that naturally curl over the head and exclude light. Requires cool temperatures for leaves to curl effectively.

Gardening Glossary
sets
Small onion bulbs, about 1/2-inch wide, that were started from seed the previous year. Grow onion sets with the pointy end up.

Gardening Glossary
side-dressing
The act of adding a small amount of fertilizer around or "on the side" of plants after they're growing.

Gardening Glossary
succession planting
Planting small, 2-to-4-foot patches of plants every two weeks throughout the growing season so that you can harvest a crop over an extended period of time.

Gardening Glossary
thinning
The act of cutting the least robust seedlings in your garden to give the healthier plants more room to grow.

Gardening Glossary
vining crops
Crops that grow on vines, such as cucumbers, melons, pumpkins, and winter squash. They usually require support (staking, trellising, etc.) to keep them off the ground.