Month-by-Month: Chores for Gardeners in the Pacific Northwest
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
Pacific Northwest, including the milder parts of British Columbia, has a long season from spring through fall. West of the Cascade Range, the lingering cool spring tends to favor cool-season annuals, and the relatively cool summers encourage spectacular displays of annuals. East of the Cascades, where winters are longer and much colder, the annual season is shorter, but the heat and the dry climate are terrific for sun-loving annuals.
January: Order seeds for starting indoors in a few weeks or outdoors in a few months. Prepare an indoor area for starting seeds.
February: Start seeds of annuals indoors for transplanting in spring. If the ground isn’t too wet, you can start seeding the following hardy annuals directly in the ground late this month: calendula, clarkia, cornflower, dwarf pink, English daisy (Bellis perennis), pansy, stock, and sweet alyssum. Transplanting hardy annuals, such as pansies and primroses, if nurseries offer them and the soil is dry enough, or plant them in containers.
March: Prepare beds for major spring planting as long as the soil isn’t too wet. Sow sweet peas seeds before midmonth; sow seeds of other hardy annuals. Continue indoor seeding of annuals. Begin sowing warm-season annuals, such as marigolds and zinnias, for transplanting when the weather warms up in May.
April: Set out transplants of cool-season annuals, such as calendulas, pansies, and snapdragons. Begin transplanting warm-season annuals if the weather and soil have warmed up. Watch for snails and slugs to begin their most damaging season around young annuals.
May: This is the Northwest’s prime time for planting annuals. Almost anything will grow if planted now. Start feeding annuals two or three weeks after planting. Protect young annuals from snails and slugs. Sow asters, cosmos, marigolds, and zinnias from seed directly in the ground.
June: Planting season continues, but try to finish soon to get the longest season. Continue to sow seeds of heat-loving annuals, such as marigolds and zinnias. Soon after planting annuals, pinch them back to encourage bushy growth. Continue regular feeding and grooming, and never let them dry out.
July: Keep annuals going strong by feeding them regularly. If planting beds need extra watering, run a soaker hose between the plants. You can still plant annual seeds for later summer bloom.
August: Watch for late summer invaders, such as spider mites. If impatiens and lobelia get a bit straggly, cut them back by about a third to encourage a late summer burst of growth.
September: Extend the summer bloom season by removing dead flowers and watering as needed. For color until frost strikes, set out dwarf pinks, Johnny-jump-ups, pansies, stocks, and kale.
October: Remove over-the-hill summer annuals. Clean up beds and turn over the soil for fall or spring planting. Keep hardy annuals, such as pansies, going for another few weeks by continuing to feed, water, and groom them. Sow wildflowers and other annuals that get off to an early start in spring. Scatter the seeds, cover them with a thin layer of organic matter, and then water thoroughly.
November: You still have time to sow seeds of hardy annuals and wildflowers for blooms next spring. Clean up all annual planting beds.
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.
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harden off
The process of acclimating plants grown indoors gradually to the brighter light and cooler temperatures of the outside world.
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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.
