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Garden Planning, Succession & Crop RotationHerb Garden Planning Calendar
Herbs behave very differently. Some are tender annuals, some are hardy perennials and some are biennials, so a good herb calendar groups them by life cycle before it assigns any dates.
Key points
- Plan by life cycle: annual, biennial or perennial.
- Set tender herb timing from your last frost date.
- Group herbs with similar sun and drainage needs.
- Harvest often, but never strip a plant.
- Preserve herbs only with tested procedures from USDA, NCHFP or extension.
How do you group herbs for planning?
Sort your herbs into annuals, biennials and perennials. Annuals such as basil finish in one season and are damaged by cold. Biennials such as parsley grow leaves one year and flower the next. Perennials such as thyme, sage and chives return each year where hardy.
Each group follows a different schedule, so planning by group is simpler than planning by herb name.
Write the group next to each herb on your plan, along with its sun and water needs. A short list on one page is easier to use than a thick reference. Many herbs also fit into flower beds and vegetable gardens, so plan the placement with their growth and size in mind rather than keeping them apart.
When should you sow or transplant herbs?
Tender annual herbs go outside after frost danger has passed and the soil has warmed. Hardy herbs can go in earlier. Some herbs are slow from seed and are usually bought as plants, while others sow easily in place.
Base timing on your last frost date, not a fixed calendar date. For example, if your last frost usually falls in the second half of the spring, plan tender herbs after that date and sow hardy herbs sooner. Check your extension planting guide for each herb.
Hardening off transplants for several days, by moving them outside for longer periods, helps them adjust to wind and sun before they go into the ground.
What sun, soil and water do herbs want?
Many culinary herbs from dry climates prefer plenty of sun and well-drained soil, and rot in wet ground. Others, such as mint, tolerate more moisture. Check each herb's needs, and put those with similar needs together.
Pots and raised beds help where drainage is poor. Mint spreads aggressively, so many gardeners grow it in a container. Overwatering is the most common problem with Mediterranean-type herbs. Let the top of the soil dry before watering again, and use a soil that drains freely.
- Sun lovers with fast drainage: group together
- Moisture-tolerant herbs: group apart
- Spreaders: give them a container or a barrier
How do you harvest herbs without hurting the plant?
Harvest leaves regularly, since cutting encourages new growth in most herbs, but do not strip a plant bare, especially a young one. Take growing tips from leafy herbs to keep them bushy.
Cut in the morning after dew dries. Wash herbs before use. Keep an eye on pesticide labels if anything has been sprayed, since pre-harvest intervals exist and herbs are eaten directly. Taking too much at once, especially late in the season, can weaken perennial herbs going into winter, so ease off as cold approaches.
How do you preserve extra herbs?
For drying, freezing or storing herbs in oil or vinegar, use only tested procedures from the National Center for Home Food Preservation, USDA or your extension service. Some methods, especially those using oil, carry food safety risks if done wrongly.
Do not rely on unverified instructions for time, temperature or storage. Follow a tested source from start to finish. Fresh herbs can also be shared with neighbors or used up quickly in cooking, which avoids the preservation question altogether.
How do you plan for containers and indoor herbs?
Pots are useful for herbs, especially those that spread or need very good drainage. Use containers with drain holes and a potting mix made for containers, and expect to water more often than for beds because pots dry quickly.
A sunny window can carry some herbs through winter, though light is often limited indoors. Group plants with similar needs and rotate pots so growth stays even.
What care do perennial herbs need through the year?
Trim in spring after the worst cold has passed, thin crowded clumps, and replace woody plants that decline. In fall, ease off heavy cutting so plants can harden off before winter.
Winter protection depends on the herb and your climate. Your hardiness zone shows winter minimum temperature, but not other conditions such as wet soil, which kills many herbs in cold months.
Replacing old woody plants every few years is normal, and it is easier if you take cuttings or divisions while the plant is still healthy. Take notes on which plants came through winter each year, which tells you what to replace.
Sources and further reading
Last reviewed: November 2026. Educational information, ranges only. Confirm timing with your county extension office.