From zip code to harvest.

A free 12-month planting calendar for your herbs and flowers, tuned to your USDA zone.

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We'll look up your USDA hardiness zone and growing season.
Please enter a valid 5-digit US zip code.
  1. 1

    Enter your zip

    Get your USDA zone and growing season.

  2. 2

    Pick herbs & flowers

    Choose what to grow — tap to add or remove.

  3. 3

    Get your calendar

    A custom 12-month plan for your picks.

  4. 4

    Get your seeds

    From our packages or wherever you like.

  5. 5

    Set up, grow, & harvest

    Set up your space, then sow, tend, and harvest on schedule — full circle.

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Curated for your zone

Enter your zip above and we'll build your zone's plant list.

We've started you with the easy essentials. Add a collection or tap any plant to build your plan.

ZIP —
USDA zone — Climate — Season —

Tap any plant to remove it from your calendar. Your 12-month plan below updates instantly.

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12-month plan

Your 12-month herb & flower plan.

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Seed packages Coming soon

Priced to your plan.

Built from the plants you keep above and your garden size — $9.99 base (packing & shipping) plus each plant's own seed price ($2.50–$5 a packet by variety). One packet covers a small bed; larger gardens add packets, so cost scales gently with your space.

Enter your zip and pick your plants above — your seed package and price build automatically from what you keep.

Add to any package

✓ Email reminders are included free with every package.

5
Set up, grow, & harvest

Set it up, then grow to harvest.

Where to plant

Give each plant the right light.

In the northern hemisphere the sun tracks low across the south — full-sun plants go on the south side, shade-tolerant ones at the back.

N S W E Shade Part sun Full sun
  • Full sun · southEnter your zip to see your plants here.
  • Part sun · east or west—
  • Shade · north—
Glossary

Garden terms, plain and simple.

New to this? Here's what the words on your calendar actually mean.

Sow
Plant seeds — into a tray indoors or straight into the ground. The starting point for most herbs.
Plant
Set an established seedling or transplant into its final spot in the garden.
Tend & care
Routine upkeep — pinching, pruning, weeding, feeding, and pest checks.
Harvest
Pick or cut the leaves, stems, or flowers once the plant is ready to use.
Water
How much and how often to water for that plant and season.
Direct-sow
Sow seeds right where they'll grow, instead of starting them in pots first.
Transplant
Move a seedling from a pot or tray out into the garden.
Harden off
Gradually get indoor-grown seedlings used to sun, wind, and cool nights over about a week before planting out.
Succession sowing
Sow a little every few weeks for a steady, continuous harvest instead of one big glut.
Bolt
When a plant rushes to flower and set seed in the heat — leaves turn bitter (cilantro is famous for it).
Last & first frost
The average final spring frost and first fall frost — the bookends of your growing season.
Hardiness zone
Your USDA climate band (3–11), based on average winter lows. It's what times everything on your calendar.
Annual
Lives a single season — grows, flowers, sets seed, and dies within the year (basil, cilantro, dill).
Perennial
Comes back year after year (rosemary, thyme, sage, mint).
Mulch
A layer of straw, compost, or bark over the soil to hold moisture and keep weeds down.
FAQ

Common questions.

How do I know when to plant my herbs?

Enter your US zip code and Herb Calendar looks up your USDA hardiness zone and frost dates, then builds a week-by-week, 12-month schedule of when to sow, plant, tend, and harvest each herb and flower.

What USDA hardiness zones does Herb Calendar support?

Every US zone from 3a through 11b. Your zone is detected automatically from your zip code.

When should I plant basil?

Basil is a tender annual, so sow or transplant it only after your last spring frost once nights stay above 50°F, then harvest through summer until the first fall frost. Your exact dates depend on your zone.

Is Herb Calendar free?

Yes. The 12-month planting calendar is free for every US zip code, including a printable PDF and a zone-specific almanac.

What is the difference between sowing and planting?

Sowing means planting seeds; planting (or transplanting) means setting out an established seedling. The calendar tells you which to do, and when, for each plant.

What herbs and flowers can I grow in my zone?

Herb Calendar curates 45+ culinary herbs, tea and wellness plants, and cut, edible, and pollinator flowers, each tagged for viability in your zone — from Mediterranean staples to specialty global herbs.