Chamomile in Zone 6A — Midwest

Chamomile is a delightful addition to any Midwest garden. Its delicate, apple-like flavor makes a soothing tea, and the cheerful flowers attract beneficial insects. Plus, there's something deeply satisfying about harvesting your own herbs right here in Zone 6A.

Midwest weather can be unpredictable, with late frosts and occasional summer heat spells. But don't worry, Chamomile is quite hardy, and with our 178-day growing season, you'll have plenty of time to enjoy a bountiful harvest.

Starting Chamomile indoors isn't essential, but it gives you a head start, especially if you're eager for an early harvest. Start your seeds indoors from mid February through early March, about six weeks before you plan to transplant. Use seed trays with a good seed-starting mix, and keep them warm and well-lit.

Bottom watering is your friend here – it prevents damping off and encourages strong root growth. With our moderate-to-late springs, getting a jump start indoors can be a real advantage.

Transplant your Chamomile seedlings outdoors from early April through early May, once the danger of hard frost has passed. Before planting, harden them off by gradually exposing them to outdoor conditions for about a week. This helps them adjust to the sun and wind.

Space your plants 6-8 inches apart in well-drained soil. Remember, Midwest weather can be variable in spring, so keep an eye on the forecast and be ready to protect your young plants from any unexpected cold snaps.

Direct sowing Chamomile is a simple and reliable method, especially for a continuous harvest throughout the season. Sow seeds directly into the garden from early April through early August. Chamomile seeds need light to germinate, so just press them lightly into the soil instead of burying them deeply.

Make sure the soil is well-prepared and has warmed up a bit. Keep the soil consistently moist until the seedlings emerge. Space plants 6-8 inches apart. Direct sowing is a great option if you want to avoid the hassle of transplanting, but keep in mind that the plants might take a little longer to mature compared to starting indoors.

Chamomile is pretty low-maintenance when it comes to watering, which is great for us Midwest gardeners who sometimes get caught up in other things. It prefers well-drained soil and actually thrives with less water, so be careful not to overdo it. Overwatering can lead to leggy, weak growth, and nobody wants that.

During the spring, when we often get plenty of rain, you might not need to water your Chamomile at all. In the summer heat spells, check the soil regularly. Use the "finger test": stick your finger about two inches into the soil. If it feels dry, it's time to water. Aim for about an inch of water per week during dry spells. Water at the base of the plants to avoid wetting the foliage, especially with our moderate-to-humid conditions, which can encourage fungal diseases.

Signs of underwatering include wilting leaves and dry, cracked soil. Overwatering can cause yellowing leaves and root rot. A light layer of mulch, like straw or shredded leaves, can help retain moisture and keep the soil cool during those hot summer days.

You can expect your first Chamomile harvest from early June through late October in the Midwest. The flowers are ready to harvest when the petals bend slightly backward, usually about 60 days after planting. The best time to harvest is in the morning after the dew has dried. This is when the flowers have the highest concentration of essential oils.

Gently pluck the flowers from the plant, being careful not to damage the stems or leaves. Regular harvesting encourages continued production, so don't be shy! Dry the flowers on a screen or in a dehydrator for use in tea.

As our first frost approaches in mid- October, harvest any remaining flowers to dry and enjoy throughout the winter. Even after a light frost, you might still get a few more blooms, but their quality might not be as good.

Here are a few common problems you might encounter with Chamomile in the Midwest:

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: A strong spray of water will knock them off. Encourage ladybugs and lacewings (natural predators). Use insecticidal soap for heavy infestations. Neem oil also works well. Avoid excess nitrogen fertilizer, as it attracts them.

Mealybugs

• What it looks like: Small, white, cottony masses on stems and leaves, often in the joints. Stunted growth and yellowing leaves. Sticky honeydew.
• What causes it: Sap-sucking insects that thrive in warm, humid conditions. They can be brought in by ants or spread by wind.
• 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. Control ant populations, as they protect mealybugs.

Thrips

• What it looks like: Tiny, slender insects (usually yellow or brown) that feed on plant sap. Silver streaks or spots on leaves and distorted flowers. Black fecal spots.
• What causes it: These pests are attracted to plants under stress. They thrive in hot, dry conditions.
• How to fix/prevent it: Encourage beneficial insects like lacewings and predatory mites. Use sticky traps to catch them. Insecticidal soap or neem oil can help control populations.

Midwest Specific Challenges: Our moderate-to-hot summers and moderate-to-humid conditions can create an ideal environment for pests like aphids and mealybugs. The wet-summer rainfall can also increase the risk of fungal diseases if plants are not well-spaced and ventilated. Keep a close eye on your plants and take action early to prevent problems from getting out of hand.

Chamomile is a great companion plant for many vegetables in the Midwest garden. It attracts beneficial insects and can even improve the flavor of some crops.

Good companions include onions, cabbage, broccoli, cucumber, and green beans. Onions help repel pests like aphids, while cabbage and broccoli benefit from Chamomile's ability to attract beneficial insects that prey on cabbage worms. Cucumbers and green beans seem to thrive when planted near Chamomile, possibly due to its overall beneficial effects on the soil.

Avoid planting Chamomile near fennel, as they tend to inhibit each other's growth.