Any plant that is “hardy” in your zone is fine to plant in winter. These flowers have no problem with snow or frost and, in fact, need the cold. Here are some of my favorite flower seeds for winter sowing in January or February.
The general rule of thumb is that most plants freeze when temperatures remain at 28°F for five hours. Of course, there are exceptions to this rule. Seedlings, with their tender new leaves, often give up the ghost when temperatures dip to 32-33°F. Tropical plants have differing low-temperature thresholds.
In warmer zones, the winter planting window is wide open. You can sow seeds for winter vegetable crops, like salad greens, radishes, carrots, onions, Swiss chard, English peas and kale. Look for transplants of other cool-season vegetables, including Brussels sprouts, broccoli and cauliflower.
December means that it is time to start planning your garden wherever you live. You can also try growing some fresh herbs inside on your kitchen windowsill. Listed below are flower, vegetable and herb varieties that are great to start planting in December based on the Hardiness Zone that you live in.
January is a great time to start planning what vegetable varieties to be grown in the garden. Look through your catalogs and find the vegetable seeds for your garden. Some flower varieties should be started in January. In a warmer environment you can plant certain vegetables, but must be ready for a frost.
There's no need to winterize them, since they won't go dormant and should continue to bloom throughout the year. But there are a couple of beneficial chores to complete so your petunias will thrive from November to March.
The first thing you need to know is when to transplant your roses. Roses need to be dormant or going dormant, not actively growing, when they are moved. Late winter to early spring is the best time.
Interestingly, there are some rose varieties that can bloom all year-round if they are grown in a climate with warm winters. Though, roses will stop blooming as soon as it starts to freeze, as there is no rose type that can survive freezing temperatures.
Crabgrass, petunias, and snapdragons are types of annual that will not survive cold temperatures and will need to be cared for to survive winter.
These cold-weather champs are kale, spinach and collards. Other hardy vegetables include broccoli, Brussels sprouts, English peas, kohlrabi and leeks. Hardy root crops are radishes and turnip, which also yields some greens from the tops. Other hardy greens include kale, mustard greens and collards.
Most flowers should be planted after your region's last frost date. Planting flowers in spring is the most popular time, but perennials do fine if planted in early fall in the North and late fall in the South.
I did some research and found out that houseplants need to be taken indoors before overnight temperatures dip below 45 degrees. Most tropical plants suffer harm from temperatures below 40 degrees.
Winter conditions in any zone are unpredictable. As a rule, your potted roses and rose trees should be kept in an environment above 25 degrees F, and ideally at 40 degrees, but not above 40-50 degrees or they will not go dormant.
A: In Southern California, it's never too late to plant rosebushes. The popular “Iceberg” roses are super hardy and will rebloom without constant deadheading. They are also available in pink and burgundy flowered varieties. If you want to plant any perennials, it's a good idea to do it sooner rather than later.
Native and naturalized roses as well as most modern shrub roses do not require any protection apart from a good layer of snow. Less hardy or grafted roses (hybrid teas, floribundas, etc.) must be protected if they are to survive the winter.
Flowers that come back up from their roots every year in the springtime are called “perennial” flowers. Some of the best perennial flowers to grow in a garden are peonies, daylilies, coneflowers, and hollyhocks.
In cold climates, petunias are annuals and only last one growing season. Within their warmer growing zones, petunias will come back every year but still don't last very long—about three years. However, they will self-seed for continued growth. Petunia spp.
Are marigolds perennials or annuals? Actually, both! Most marigolds are annuals, but a few are perennials. Marigolds self-seed so they may appear to be a perennial when in reality, they are just coming back from seed.
Late winter is 4 to 6 weeks before spring thaw begins. This could be any time in January to May, depending on your climate. Use your average last frost date and count back.
Annuals to plant in February
The list includes lobelia, petunia, vinca, browallia, snapdragon, and verbena. You still have time to start seeds of cool-season annuals (indoors) such as pansies, dianthus, calendula, English daisy, ranunculus, monkeyflower, annual poppies, primula, Veronica, and forget-me-nots this month.
Only pansies and violas are hardy enough to survive a surprise hard freeze, but dianthus, nasturtiums, petunias, primroses, snapdragons, and sweet peas can handle brief cold spells. Most delphinium, foxgloves, and hollyhocks will require some exposure to cold weather to flower well, so get them out early, too.