Best Time To Plant Chamomile In Oregon

Oregon’s western valleys offer a long chamomile growing season, while eastern regions require a more condensed planting schedule. The best time to plant chamomile in oregon depends heavily on your specific climate zone and whether you are starting from seed or transplant. Getting the timing right ensures healthy plants and abundant blooms.

Chamomile is a cool-season herb that thrives in Oregon’s mild springs and falls. It does not tolerate extreme heat or soggy roots. Knowing your region’s frost dates is the first step to success.

This guide covers everything from soil prep to harvesting. You will learn exactly when to sow seeds and set out transplants for both German and Roman chamomile varieties.

The best time to plant chamomile in oregon is early spring, about two to three weeks before the last expected frost. For most of western Oregon, that means March through early April. In eastern Oregon, wait until late April or early May.

Fall planting is also possible in mild coastal areas. September to October works well for a spring harvest the following year. However, winter protection may be needed in colder zones.

Understanding Oregon’s Climate Zones

Oregon has diverse climates. The west side is mild and wet. The east side is drier and colder. Your planting window shifts accordingly.

Western valleys (Portland, Salem, Eugene): USDA zones 8a-8b. Last frost mid-March to early April. First frost mid-October to November.
Coastal areas (Astoria, Newport): USDA zones 8b-9a. Very mild winters. Frost rare. Plant almost year-round.
Eastern Oregon (Bend, Pendleton, Ontario): USDA zones 5b-7a. Last frost late April to mid-May. First frost late September to early October.
High desert (Burns, Lakeview): USDA zones 4b-5b. Short growing season. Plant after May 15.

Spring Planting: The Primary Window

Spring is the most reliable time for chamomile in Oregon. Seeds germinate best in cool soil between 55°F and 65°F. Direct sow or start indoors.

Check your local frost date. Use the Oregon State University Extension frost chart.
Prepare soil in a sunny spot. Chamomile prefers well-drained, sandy loam.
Sow seeds 1/4 inch deep. Space 6-8 inches apart for German chamomile.
Water gently. Keep soil moist but not waterlogged.
Thin seedlings to 12 inches apart once they have two true leaves.

Transplants can go out after the last frost. Harden them off for a week first. Set them 12 inches apart in rows 18 inches apart.

Indoor Seed Starting

Start seeds indoors 4-6 weeks before your last frost. Use seed trays with drainage. Place under grow lights or in a bright window. Keep soil temperature around 60°F.

Transplant when seedlings are 2-3 inches tall and have several leaves. Do not disturb roots too much. Chamomile does not like root disturbance.

Fall Planting: For Mild Regions Only

In western Oregon’s mild winters, fall planting works well. Sow seeds in late August through September. Plants establish before winter and bloom early the next spring.

Choose a spot with good drainage. Wet winter soil can rot roots.
Mulch lightly after planting to insulate soil.
Water sparingly in fall. Rain usually provides enough moisture.
Protect from heavy frost with row covers if needed.

Fall planting is not recommended for eastern Oregon. Winters are too harsh. Seeds or transplants will likely die.

Summer Planting: Not Ideal

Summer heat stresses chamomile. Plants bolt quickly and produce fewer flowers. If you must plant in summer, choose a shaded location and water frequently.

In western Oregon, June planting is possible but risky. In eastern Oregon, avoid summer planting entirely. The heat is too intense.

Choosing The Right Chamomile Variety

Two main types of chamomile are grown in Oregon. Each has different planting needs.

German Chamomile (Matricaria Chamomilla)

This annual variety grows quickly from seed. It produces abundant flowers for tea. Best for spring planting. Harvest in 60-70 days.

Prefers full sun.
Grows 2-3 feet tall.
Self-seeds readily. May naturalize in your garden.

Roman Chamomile (Chamaemelum Nobile)

This perennial variety is low-growing and spreading. It works as a ground cover. Best for fall planting in mild areas. Blooms in late spring.

Prefers partial shade in hot climates.
Grows 6-12 inches tall.
Requires division every 2-3 years.

Soil Preparation And Site Selection

Chamomile is not fussy, but it does best in certain conditions. Prepare your site before planting.

Choose a sunny location. At least 6 hours of direct sun daily.
Test soil pH. Aim for 5.6 to 7.5. Slightly acidic to neutral.
Amend heavy clay soil with compost or sand. Good drainage is critical.
Remove weeds and rocks. Chamomile seedlings are delicate.
Rake soil smooth before sowing seeds.

Raised beds work well in rainy areas. They improve drainage and warm soil faster in spring.

Watering And Care After Planting

Chamomile needs consistent moisture during germination. Once established, it is fairly drought-tolerant.

Water deeply once a week if rainfall is less than 1 inch.
Do not overwater. Soggy soil causes root rot.
Mulch around plants to retain moisture and suppress weeds.
Fertilize lightly with compost tea once a month. Too much nitrogen reduces flower production.

Deadhead spent flowers to encourage more blooms. Leave some flowers to self-seed if you want volunteers next year.

Harvesting Chamomile In Oregon

Harvest time depends on your planting date. Spring-planted chamomile blooms in June or July. Fall-planted blooms in April or May.

Pick flowers when petals are fully open but before they start to droop.
Harvest in the morning after dew dries. Essential oils are highest then.
Pinch or snip stems just below the flower head.
Dry flowers in a well-ventilated area out of direct sun.
Store in an airtight container away from light.

You can harvest continuously for several weeks. Each plant produces dozens of flowers.

Common Problems And Solutions

Chamomile is generally pest-free in Oregon. A few issues may arise.

Aphids

Small green insects on stems and leaves. Spray with a strong stream of water or use insecticidal soap.

Powdery Mildew

White coating on leaves in humid conditions. Improve air circulation. Avoid overhead watering.

Root Rot

Yellowing leaves and stunted growth. Caused by overwatering or poor drainage. Plant in raised beds or amend soil.

Bolting

Premature flowering due to heat stress. Plant earlier in spring or provide afternoon shade.

Extending The Growing Season

In eastern Oregon, you can extend the season with simple techniques.

Use row covers or cold frames in early spring.
Start seeds indoors to get a head start.
Choose fast-maturing varieties like German chamomile.
Plant in containers that can be moved indoors during frost.

In western Oregon, you can succession plant every 2-3 weeks from March through May. This ensures continuous blooms.

Frequently Asked Questions

Can I plant chamomile in winter in Oregon?

Only in coastal areas with very mild winters. Inland valleys and eastern Oregon are too cold. Wait for spring.

What is the latest I can plant chamomile in Oregon?

In western Oregon, you can plant until early June. In eastern Oregon, do not plant after mid-May. Later planting risks heat stress.

Should I soak chamomile seeds before planting?

No. Chamomile seeds are tiny and do not need soaking. Sow them directly on the soil surface and press lightly.

How deep do I plant chamomile seeds?

Only 1/4 inch deep. Cover very lightly with soil or vermiculite. Seeds need light to germinate.

Does chamomile come back every year in Oregon?

German chamomile is an annual but self-seeds freely. Roman chamomile is a perennial and returns for several years.

Final Tips For Success

Start with fresh seeds each year. Chamomile seeds lose viability quickly. Store them in a cool, dry place.

Mark your planting dates on a calendar. Keep notes on what works in your microclimate. Oregon’s weather varies even within a single county.

Companion plant chamomile with cabbage, onions, or cucumbers. It repels pests and attracts beneficial insects.

Do not plant near mint or fennel. They compete for nutrients and space.

With the right timing and care, you will have a bountiful chamomile harvest in Oregon. Enjoy fresh tea all summer long.

Remember, the best time to plant chamomile in oregon is early spring for most areas. Adjust by two weeks for your specific zone. Happy gardening.