USDA Zone 12 is frost-free year-round, with average winter lows of 50 to 60°F. There is no last spring frost and no first autumn frost to plan around, so Zone 12 gardeners plant by heat and by the wet and dry seasons instead of by frost dates. The tropical warmth that lets heat lovers grow all year makes cool-season crops much harder. Frost dates here are zone averages and vary by microclimate, elevation and year — check your local extension service for guidance for your exact spot.
Chamomile is the gentle tea herb of Zone 12 — a dainty, daisy-like annual whose small white and yellow flowers brew into a calming, apple-scented tea. It is a cool-season crop in the tropics: chamomile flowers best in the coolest months, roughly December to February, and fades fast when the heat returns. Grow it in the cool season, harvest the flowers little and often, and let a few plants go to seed — chamomile self-sows freely and will come back on its own next cool season.
Zone 12 at a glance
Zone 12 is frost-free year-round, with average winter lows of 50 to 60°F. Plant by the season: the coolest, driest months for cool-season crops, and the cooler part of the year for the best fruit set on heat lovers.
| Detail | Zone 12 guidance |
|---|---|
| Average winter low | 50 to 60°F |
| Last spring frost | None — frost-free year-round |
| First autumn frost | None — frost-free year-round |
| Days to germination | 7–14 days |
| Days to maturity | 60–90 days |
| Sowing | both |
| Best planting window | December to February |
| Harvest | 60–90 days after sowing/transplanting |
| Sun | full sun |
| Soil pH | 5.5–7.0 |
| Spacing | 6–12 inches |
| Water needs | moderate |
| Cold tolerance | hardy |
When to plant chamomile in Zone 12
Sow chamomile in Zone 12 in the coolest months, roughly December to February. It can be direct sown or started indoors, and seed germinates in 7–14 days; flowers are ready to pick in 60–90 days. Sow a small patch every few weeks in the cool season so you always have fresh flowers. In the hot months chamomile bolts, flowers sparsely and dies back, so save your seed for the cool season. Give it a sunny spot with light afternoon shade in Zone 12, and keep the soil moist but never soggy. The planting calendar hub shows the Zone 12 year at a glance, and the December guide covers the coolest month.
Starting chamomile in Zone 12
Chamomile seed is tiny and needs light to germinate, so sow it on the surface of moist soil or seed mix and barely cover it — or do not cover it at all. Keep it evenly damp until seedlings appear in 7–14 days, and thin seedlings to 6–12 inches apart once they have a few true leaves. Chamomile likes soil with a pH of 5.5–7.0 and a spot with morning sun and light afternoon shade. Water gently at the base so the fine seedlings are not washed away, and mulch lightly to hold moisture. It also grows well in a pot, which lets you move it to the coolest, shadiest spot you have.
Soil, spacing, sun and water
Chamomile grows best in full sun, in soil with a pH of 5.5–7.0, spaced 6–12 inches apart. Dig in compost before planting and mulch lightly to hold moisture. Give plants room so air moves between them — in Zone 12 humidity, airflow is the best defence against leaf diseases. This crop has moderate water needs: water deeply when the top inch or two of soil feels dry, rather than sprinkling lightly every day, and water at the base in the morning so leaves dry before night. Mulch helps hold moisture. Keep the bed weed-free, and feed lightly with compost rather than heavy fertiliser, which pushes soft, disease-prone growth. The seed-spacing calculator can work out quantities for your bed.
Companion planting
Good companions for chamomile include tomatoes, peppers, marigolds, cabbage. The companion planting finder can suggest combinations for your whole garden. Rotate crops each year and avoid planting where the same family (Asteraceae) grew last year. A related crop to plan alongside is lavender, which shares the Zone 12 calendar, so the two guides work well together.
Pests and problems
The common pests and problems to watch for with chamomile are aphids, slugs, thrips. Inspect plants regularly, especially leaf undersides, and act early: hand-pick larger pests, wash aphids off with water, and remove badly affected leaves. Healthy plants in the right soil and spacing resist pests better than stressed ones. Fungal problems are the bigger worry in Zone 12 humidity: water at the base, space widely, and mulch to stop soil splashing onto leaves. If you are unsure what you are looking at, the pest identifier helper can narrow it down.
Harvest and storage
Pick chamomile flowers when they are fully open, about 60–90 days after sowing, pinching the flower heads off with your fingers. Pick little and often — every day or two in full flower — because the more you pick, the more the plant produces. Dry the flowers in a single layer in a warm, airy, shaded spot until crisp, then store in a sealed jar away from light. Use a spoonful per cup of tea. Let a few plants go to seed at the end of the season and chamomile will self-sow, giving you free seedlings when the cool weather returns.
Frequently asked questions
When should I plant chamomile in Zone 12?
In the coolest months, roughly December to February. Zone 12 is frost-free year-round with winter lows of 50 to 60°F, so plant by heat, not frost. Check your local extension service for your area.
How long does chamomile take to grow in Zone 12?
Seed germinates in 7–14 days and flowers are ready to pick in 60–90 days. Pick little and often — the more you pick, the more it produces.
How do I dry chamomile for tea?
Spread the flower heads in a single layer in a warm, airy, shaded spot until crisp, then store in a sealed jar away from light. Use a spoonful per cup.
Will chamomile come back next year in Zone 12?
It self-sows freely. Let a few plants go to seed at the end of the cool season and seedlings will appear on their own when the cool weather returns.