Bringing Herbs in for the Winter - How To Manage Herbs and Herb Plants for Winter Enjoyment
A Pot of Healthy Young Herbs
Bringing Herbs Indoors for the Winter
If you garden in a temperate climate, as I do, you are saddened by the approach of the end of the growing season. Winter brings its joys, for sure, but it also brings an end to walking out the kitchen door to snip fresh herbs in the garden. However, you can bring your herbs indoors for the winter, whether in pots as live, growing plants, or in a number of preserved forms. Not all herb plants lend themselves to being dug up out of the garden at the end of the growing season or to being managed in pots indoors during the winter months, yet, with careful planning and a little work, you can enjoy the aroma and taste of your garden’s herbs, fresh or preserved, after the outdoor growing season is over. Bringing herbs indoors for winter enjoyment is a matter of knowing which herb plants will do well indoors and which will not, and of being creative about preserving fresh garden herbs through drying, freezing, and storing in oil or vinegar.
Know Your Herbs - A Strategy for Managing Herbs and Herb Plants for Winter Enjoyment
It’s all about the herbs; it’s not about me or you. Herbs have different tolerances, and thus requirements, based on a number of characteristics, and it’s up to us to know their characteristics and to meet the needs the characteristics demand. Characteristics include hardiness, growth cycle, and type of root. When you know these characteristics, you can make informed decisions about which herb plants will do well in indoor conditions and which will not.
Lavender - An Outstanding Hardy Perennial Herb
Rosemary - A Semi-Hardy Perennial Herb
Lemon Verbena - A Tender Perennial Herb
Basil - An Annual Herb Plant
Parsley - A Biennial Herb
Hardy perennial herb plants such as French tarragon, lavender, and chive take their rest in the garden over winter. Although the top parts of the plants die back in the winter, the roots remain alive in the ground in a dormant state. In the spring, fresh new top growth emerges. During the spring and summer, cut their new growth regularly for freezing or drying.
Semi-hardy perennial herb plants such as rosemary, Greek oregano, and some of the thymes may stay in the ground as well. If they don’t make it through the winter, you can replace them in the spring. It’s possible that one area of your yard will work better for these plants than another, so experiment a little. Semi-hardy perennial herbs are thus hardy for some temperate micro-climates but not for others!
Tender perennial herb plants such as bay laurel and lemon verbena can become quite large and impressive herb plants over time. Grown in their natural environments, the bay laurel can reach a height of 40 feet and the lemon verbena 15 feet. In temperate climates they are either treated as annuals in the outdoor garden, or kept in pots all year ‘round, summering outdoors and resting indoors for the winter as they have no tolerance for frost.
About Growth Cycles
Annual herb plants such as basil and dill are planted new each spring, either from seeds or seedlings. Some annual herbs lend themselves well to a late summer seeding in pots, after which they can be brought indoors and kept in strong light conditions. Their growth will be limited indoors, but there will be enough to lend some green to the house and some flavor in the kitchen.
Biennial herb plants such as parsley, caraway, and angelica have a two-year growth cycle. In their first season, they sprout from seed and reach their maximum vegetative growth late in the summer. In the following spring, left undisturbed in the ground through the winter, they send up flower stalks at the sacrifice of the succulent growth we cherish as the green herb. When the spring flowers are spent, the ripe seeds can be planted, and the plant’s two-year cycle will begin again.
About Root Types
Most common herb plants have shallow-to-deep fibrous systems. But some, such as parsley and caraway, have tap roots which do not lend themselves to being uprooted from the ground, nor do they lend themselves to living well in pots over long periods of time. These plants grow like carrots; they seek deep, porous soil to provide an easy path for sending their main root downwards. If their main root is inhibited by lack of space or compacted soil, their top growth will be less than stellar.
Simple Rules of Thumb for Deciding Which Herb Plants to Bring Indoors and Which Herbs To Preserve
- Let hardy perennial herb plants remain in the ground over winter and enjoy their taste and fragrance during the coldest months by freezing, drying, or preserving in oil or vinegar.
- Establish semi-hardy and tender perennial herb plants in pots for migration from outdoors to indoors.
- Start seedlings in small pots in late summer outdoors for fresh, actively growing young herbs indoors in the winter.
- Avoid uprooting herbs with tap roots.
Managing Potted Herb Plants Outdoors During the Growing Season
After planting semi-hardy or tender perennial herb plants in pots in the spring for eventual migration indoors for the winter, you may want to sink these pots into the garden soil during the growing season. Doing so will help preserve moisture and even out temperature extremes. At the end of the summer, just pull up the pots and clean them thoroughly before bringing indoors.
Chives - So Easy To Grow from Seed!
A Sample Plan for Managing Herbs and Herb Plants for Winter Enjoyment
February-March : Start easy-to-seed plants of perennial, annual, and biennial herbs…such as chive, basil, and parsley…for transplanting into the summer garden after the last expected frost date for your region.
March-May : Shop local nurseries or online plant suppliers for the hardy, semi-hardy, or tender perennial herb plants you want to establish. Plant the hardy perennial herb plants in the garden; plant the semi-hardy and tender perennial herb plants in commercial potting soil in the pots which you will migrate indoors in the autumn.
May : Let the herb plants establish themselves outdoors.
June-August : Make frequent cuttings of new herb plant growth for eating and for preserving for winter enjoyment.
August-September : Start those easy-to-seed herb plants in small pots for fresh herbs indoors during the winter months and for holiday gift-giving.
September-October : Prepare your indoor environment for the potted semi-hardy and tender perennials and the August seedlings you established in pots during the summer.
October : Make sure all herb plants destined for indoors are safely inside before the first expected frost date.
When you know the characteristics of herb plants and create a plan to manage their needs throughout the year, you can enjoy the tastes and aromas of your summer herb garden all year ‘round.
Resources for Learning More about Herbs and Their Characteristics
- Herbs and Herbal Uses
Wonderful herb charts showing which are annual, perennial, tender or hardy, and you can even print your own seed packets!
- Growing Herbs in the Home Garden
Resource for growing herbs indoors and out from the West Virginia University Extension Service.
- List of Common Herbs - Herb Gardening - University of Illinois Extension
An invaluable resource for both beginning and experienced herb gardeners.
- Bay Laurel Plants Veggie Gardening Tips
Bay Laurel, also known as Sweet Bay, is a culinary herb plant that makes a great addition to the kitchen garden and can easily be grown on a patio or deck.
More from Sally on Gardening...
- Bringing Houseplants In for the Winter - 10 Tips for Preparing House Plants for Healthy Winter Livin
- 10 Uses for Chives
- Waging War in the Garden
- Tomato Killer on the Loose - What Ate My Tomatoes?
- Buy Pink Gardening Apparel and Accessories Online
- Buy Pink Gardening Tools Online
- Party Time at the Buddleja - You Know You Want a Butterfly Bush!
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