Herb Garden Care by Season: A Year-Round Checklist

An herb garden does not need much work, but it does need the right job at the right time. Cut back a sage too late in the year, or set basil out too early, and the plant pays for it. Thinking about herb garden care by season gives you a short list for each part of the year instead of one long list of chores.

The tasks below are tied to seasons and conditions, not calendar dates. Spring arrives weeks earlier in a mild coastal garden than in a cold northern one, so watch your own frost dates, soil and plants and let them set the pace.

The year at a glance

Your local climate decides when each row begins. The USDA Plant Hardiness Zone Map shows the hardiness zone for your area, which is a rough guide to how cold your winters get and which perennial herbs are likely to come back.

Early spring: wake the garden up

Begin when the soil has thawed and is dry enough to crumble in your hand. Working wet soil compacts it, so a few days of patience helps.

• Clear winter debris. Rake away matted leaves and pull back winter mulch from plant crowns so light and air reach the new shoots.
• Cut back dead stems once new growth shows. On perennials such as sage, thyme and oregano, wait until you can see fresh green, then trim just above it. Cutting before you can tell live wood from dead risks removing stems that would have recovered.
• Divide chives and oregano. Lift crowded clumps, split them into sections and replant with fresh spacing.
• Top up compost. Spread a thin layer of finished compost around established plants and over empty ground.
• Sow cool-season herbs. Cilantro, dill and parsley handle cool weather and can go in while tender herbs still have to wait.

For how to work out your own timing from your last frost, see the guide to when to plant herbs.

Late spring into summer: plant, pinch and pick

This is the busy season, and most of the work is light and frequent.

• Plant tender herbs after frost. Basil goes out once frost danger has passed and the nights have warmed. Harden off transplants before they face full sun and wind.
• Mulch. A layer of mulch around leafy herbs holds moisture and keeps weeds down. Keep it thin and pulled back from the stems of thyme, sage and rosemary, which prefer dry crowns.
• Check soil moisture. Push a finger into the soil before you water. Need varies with heat, wind, rain and whether the plant is in the ground or in a pot.
• Pinch and harvest regularly. Frequent light picking keeps plants bushy. The harvesting guide shows where to cut and how much to take.
• Remove flower buds on basil. Pinching them out as they form keeps the plant making leaves for longer.
• Resow cilantro and dill in cool spells. Both bolt in heat, so make small repeat sowings whenever the weather turns mild.
• Watch for pests. Look under leaves while you pick. Catching a few insects early is far easier than dealing with many.

When something looks wrong, resist guessing from one symptom. Yellow leaves or wilting can have several causes, and the guide to common herb garden problems walks through the checks that tell them apart.

Fall: gather in and slow down

As days shorten and nights cool, the aim shifts from pushing growth to letting plants settle.

• Take the last big harvests of annuals before frost. Basil blackens at the first frost, so cut it when a cold night is forecast. Dry or freeze what you cannot use fresh.
• Stop hard pruning of perennials. Heavy cutting prompts soft new growth that has no time to toughen before cold weather. Light picking for the kitchen is fine.
• Collect seed. Gather ripe seed heads from cilantro, dill and basil on a dry day.
• Plant or divide hardy perennials in mild regions. Where winters are gentle, fall gives roots time to establish in cool, moist soil. In cold regions, leave this job for spring.
• Tidy, but leave some stems. Clear diseased leaves and spent annuals. Standing stems on healthy perennials give the crowns a little shelter, and you can cut them back in spring.

Winter: protect and plan

The garden asks little in winter, but two jobs matter in cold climates.

• Protect marginal plants. Herbs growing near the cold edge of their listed range benefit from a loose mulch around the crown and a spot out of the wind.
• Move potted rosemary to shelter in cold zones. Where winters are harsher than rosemary tolerates, bring the pot to a cool, bright, frost-free place.
• Plan and order seed. Note what you ran short of and what you grew too much of, sketch next year’s layout and order seed while the choice is wide.

Drainage matters as much as temperature at this time of year. The guide to overwintering herbs explains mulching, shelter and care of containers in detail.

Adjusting the checklist to your climate

The order of jobs stays the same wherever you garden, but the seasons stretch and shrink.

In regions with long, hot summers, cool-season herbs such as cilantro and parsley do their best work in fall, winter and early spring, and midsummer becomes the quiet period. In regions with short summers, the window between last and first frost is narrow, so planting tender herbs promptly after frost matters more.

Containers run ahead of the ground in both directions: they warm sooner in spring, dry faster in summer and chill faster in fall. Check them first whenever the weather changes.

Keep a simple garden record

A few notes each year turn this general checklist into one that fits your own garden. Write down the dates of your last spring frost and first fall frost, when each herb went in, when cilantro bolted and which perennials came back.