Chamomile in Zone 5A — Great Plains

Chamomile is a fantastic addition to any Great Plains garden. Its delicate, apple-like flavor makes a soothing tea, and the plant itself is surprisingly resilient in our variable climate. Plus, those daisy-like flowers add a cheerful touch to your herb garden, attracting beneficial insects to boot.

We all know our region throws curveballs – from those unpredictable temperature swings in spring to the occasional hail storm. But Chamomile's relatively quick 60-day maturity means you can usually squeeze in a harvest or two during our 168-day growing season.

Starting Chamomile indoors gives you a head start, but it's not essential. If you're eager for an early harvest or want more control over the seedlings' environment, consider indoor sowing.

Begin indoors from late February through mid March – about six weeks before you plan to transplant. Use seed trays with a good seed-starting mix, and provide warmth (a heat mat helps) and plenty of light (grow lights are best). Remember to water from the bottom to avoid damping off. Given our variable spring weather in the Plains, this can be a smart move to protect those delicate seedlings.

Transplant your Chamomile seedlings outdoors from mid April through early May. Before transplanting, harden them off by gradually exposing them to outdoor conditions for about a week.

Space the plants 6-8 inches apart in a sunny spot with well-drained soil. Keep an eye on the weather forecast – a late frost can still happen, even in late April. If frost threatens, cover your seedlings with row covers or blankets.

Direct sowing Chamomile is a simple and effective method, especially if you're not in a rush. The benefit is less handling of the delicate seedlings, but the drawback is less control over germination.

Sow seeds directly into the garden from mid April through late July. Ensure the soil is finely raked and the soil temperature is consistently above 60°F. Lightly press the seeds into the soil, but don't bury them too deep, as they need light to germinate. Thin seedlings to 6-8 inches apart once they emerge.

Chamomile is drought-tolerant and prefers well-drained soil, making it a good fit for our Plains climate. Overwatering is a bigger risk than underwatering, leading to weak, leggy growth.

During the spring, when rainfall is more frequent, you might not need to water at all unless we're in a dry spell. Once the summer heat hits, check the soil moisture regularly. Stick your finger about 2 inches deep into the soil. If it feels dry, it's time to water.

Aim for about 1 inch of water per week, either from rainfall or irrigation. Water at the base of the plants to avoid wetting the foliage, which can encourage fungal diseases in our low-to-moderate humidity. Signs of underwatering include wilting and yellowing leaves. Overwatering, on the other hand, can cause root rot and stunted growth. A light layer of mulch, like straw or wood chips, can help retain moisture and suppress weeds, which is helpful during our hot summers.

You can expect your first Chamomile harvest in early June, about 60 days after planting. The harvest window extends through mid October, until the first frost threatens.

Harvest the flowers when the petals bend slightly backward and the center is bright yellow. The best time to harvest is in the morning after the dew has dried. Use scissors or your fingers to gently pluck the flowers from the stems, being careful not to damage the plant. Regular harvesting encourages continued production.

As the first frost approaches in early October, harvest any remaining flowers, even the ones that aren't fully open. You can dry these flowers indoors for tea.

Here are some common problems you might encounter with Chamomile in the Great Plains:

Aphids

• What it looks like: Clusters of tiny soft-bodied insects (green, black, or white) on stems and leaf undersides. Sticky honeydew residue. Curled or distorted new growth.
• What causes it: Rapid-reproducing sap-sucking insects. Populations explode in warm weather. Ant colonies may farm them for honeydew.
• How to fix/prevent it: Strong water spray knocks them off. Encourage ladybugs and lacewings (natural predators). Insecticidal soap for heavy infestations. Neem oil works systemically. Avoid excess nitrogen fertilizer (it attracts them).

Mealybugs

• What it looks like: White, cottony masses on stems and leaves. Stunted growth. Sticky honeydew.
• What causes it: Sap-sucking insects that thrive in warm, dry conditions. They can be spread by wind or ants.
• How to fix/prevent it: Wipe them off with a cotton swab dipped in rubbing alcohol. Insecticidal soap or neem oil can also be effective. Ensure good air circulation around your plants.

Thrips

• What it looks like: Tiny, slender insects that feed on plant sap. Silver streaks or stippling on leaves. Distorted flowers.
• What causes it: These pests are attracted to stressed plants, and their populations can explode during hot, dry weather.
• How to fix/prevent it: Spray plants with a strong stream of water. Insecticidal soap or neem oil can help control infestations. Remove any heavily infested plant parts.

Great Plains Specific Challenges: The hot heat and variable rainfall of the Great Plains can stress Chamomile, making it more susceptible to pests. Monitor your plants regularly, especially during hot, dry periods. Wind protection is essential to prevent damage and reduce stress on the plants.

Chamomile benefits from companion planting.

Good companions include onions, cabbage, broccoli, cucumber, and green beans. Onions help deter pests with their strong scent. Cabbage and broccoli benefit from Chamomile's ability to attract beneficial insects that prey on cabbage worms. Cucumbers seem to thrive when planted near Chamomile. Green beans improve the soil by fixing nitrogen, which Chamomile can use.

Avoid planting Chamomile near mint, as mint can be invasive and outcompete it for resources.