Chamomile is a gentle, daisy-like herb that is as easy to grow as it is useful: its small white-and-yellow flowers make a soothing tea, and the plant asks for almost nothing in return. In Zone 9 it is a cool-season annual that self-seeds freely — sow it once in autumn, and you may never need to sow it again.
There are two kinds: German chamomile, a taller annual with the strongest flavour for tea, and Roman chamomile, a low perennial ground cover. For tea, German chamomile is the one to grow.
Zone 9 at a glance
USDA Zone 9 covers the warmest parts of the southern United States, including much of Florida, southern Texas, southern Louisiana, southern Arizona and coastal California. Winters are mild, with average winter lows of 20 to 30°F, and the growing season runs nearly all year.
The average last spring frost in Zone 9 is Jan 30–Feb 15, and the average first autumn frost is Dec 1–15. These are USDA zone averages drawn from NOAA frost records, not exact dates for any one garden — always check your local extension service and the forecast before planting tender crops outside.
| Detail | Zone 9 guidance |
|---|---|
| Average winter low | 20 to 30°F |
| Average last spring frost | Jan 30–Feb 15 (average/range) |
| Average first autumn frost | Dec 1–15 (average/range) |
| Days to germination | 7–14 days |
| Days to maturity | 60–90 days |
| Sowing | both |
| 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 9
Sow chamomile in Zone 9 from September through March, either started indoors or direct-sown. Seeds germinate in 7–14 days and plants mature in 60–90 days to flowering. The average last spring frost is Jan 30–Feb 15 and the average first autumn frost is Dec 1–15 — USDA zone averages, not exact dates, so check your local extension service for your own area. Chamomile is hardy and tolerates light frost, and an autumn sowing will flower through winter and spring in Zone 9. In high summer it fades and sets seed, so let a few plants go to seed in spring and the patch will renew itself in autumn.
Work back from the frost dates rather than from a calendar date: the planting calendar hub gives the Zone 9 picture month by month. The month guides for October in Zone 9 and February in Zone 9 show what else is happening at planting time.
Starting chamomile in Zone 9
Direct-sow chamomile where it is to grow — it dislikes transplanting. Scatter the tiny seed on the surface of prepared soil and press it in gently, but do not cover it: chamomile seed needs light to germinate. Keep the soil moist for the 7–14 days it takes to sprout, and thin seedlings to 6–12 inches apart once they are big enough to handle. You can also start seed indoors in pots and transplant carefully, but direct sowing is simpler and the plants grow stronger. Once chamomile has flowered and set seed in your garden, volunteers will appear on their own each autumn — just thin them to spacing.
Soil, spacing, sun and water
Chamomile needs full sun and well-drained soil with a pH of 5.5–7.0. It tolerates poor soil better than most herbs — in fact, too much fertiliser makes lush leaves and few flowers. Dig in a little compost before sowing, but do not over-feed. Space plants 6–12 inches apart so air can move between them. Water needs are moderate: keep the soil evenly moist while plants are young, then water only in dry spells. Mulch lightly to hold moisture, but keep mulch away from the stems. Chamomile grows well in pots and at the edge of beds.
Companion planting
Good companions for chamomile include tomatoes, peppers, marigolds and cabbage, and chamomile itself is a classic companion plant — its flowers attract beneficial insects, and it is traditionally planted near fruit trees and vegetables. Calendula is another flower-herb that shares the cool-season bed, and our guide to when to plant borage in Zone 9 shows how another self-seeding flower-herb fits the same garden. Rotate annual crops each year, but let chamomile self-seed where it is happy. The companion planting finder can suggest combinations for your whole bed.
Pests and problems
The common pests to watch for with chamomile are aphids, slugs and thrips. Aphids cluster on young growth — wash them off with water. Slugs nibble young seedlings, especially after rain; hand-pick them after dark and keep mulch pulled back. Thrips can distort flowers in hot weather; healthy, well-spaced plants cope better. Chamomile is generally trouble-free — its biggest issue in Zone 9 is summer heat, which ends the season, not pests.
Harvest and storage
Harvest chamomile 60–90 days after sowing, picking the flowers as they open — when the white petals are flat and the yellow centre is raised. Pick little and often, every few days, and the plant will keep flowering for weeks. Dry the flowers in a single layer in a shady, airy place, then store in a jar out of the light. For tea, steep a teaspoon of dried flowers in hot water. If you want the patch to renew itself, leave a few flower heads to set seed and drop.
Frequently asked questions
When should I plant chamomile in Zone 9?
Sow from September through March. Seeds germinate in 7–14 days and plants mature in 60–90 days to flowering. An autumn sowing flowers through winter and spring.
German or Roman chamomile — which should I grow?
For tea, grow German chamomile — a taller annual with the best flavour. Roman chamomile is a low perennial ground cover, better as a lawn alternative than a tea crop.
Why is my chamomile seed not germinating?
Chamomile seed needs light — do not cover it. Scatter it on the surface, press it in gently, and keep the soil moist for 7–14 days.
Will chamomile come back next year?
Usually, yes — it self-seeds freely. Let a few flower heads set seed in spring and volunteers will appear on their own each autumn.