Feverfew in Zone 6B — Texas

Feverfew is a worthwhile addition to your Texas garden for its cheerful daisy-like flowers and potential medicinal properties. It's relatively low-maintenance, attracts beneficial insects, and thrives in our long growing season, giving you beautiful blooms from spring through fall.

Now, we all know Texas weather can be unpredictable, throwing everything from extreme heat to sudden freezes our way. But with Feverfew's hardiness and our lengthy 230-day growing season, you have plenty of time to get a good crop. Timing your planting right is key.

Starting Feverfew indoors is an option, especially if you want a head start on the season or have specific varieties in mind. Begin in mid January through early February, about eight weeks before you plan to transplant.

Use seed trays with a good seed-starting mix, and keep them in a warm location, ideally with grow lights to ensure strong, even growth. Bottom watering is a great way to keep the soil consistently moist without disturbing the delicate seedlings. Given our early springs here in Texas, getting a jump start indoors can pay off.

Transplant your Feverfew seedlings outdoors in mid March through mid April, after the danger of a hard freeze has passed. Before transplanting, harden off your seedlings by gradually exposing them to outdoor conditions for about a week.

Space them 12-15 inches apart to allow for good air circulation. Keep an eye on the forecast; those late-season cold snaps can still happen. If a freeze is predicted, cover your young plants.

Direct sowing Feverfew is also a viable option, and it's less work! Wait until late March through mid August, when the soil has warmed up.

Prepare your garden bed by loosening the soil and removing any weeds. Scatter the seeds thinly over the surface and gently press them into the soil. Keep the soil consistently moist until the seedlings emerge. Thin them to 12-15 inches apart once they're a few inches tall.

Feverfew is pretty drought-tolerant once established, which is a blessing during our Texas summers. However, consistent watering is important, especially when plants are young.

During the hotter months, check the soil moisture regularly. Stick your finger about two inches deep into the soil; if it feels dry, it's time to water. Aim for about an 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, especially with our variable humidity.

Signs of underwatering include wilting leaves and stunted growth. Overwatering can lead to root rot, indicated by yellowing leaves and a generally unhealthy appearance. A good layer of mulch, like shredded bark or compost, helps retain moisture and suppress weeds.

Regular pruning will keep your Feverfew plants looking their best and encourage continuous blooming. Deadhead spent flowers by snipping them off just below the flower head. This prevents the plant from putting energy into seed production and encourages it to produce more blooms.

After the main flush of flowering, usually in late summer, you can cut the plants back by about one-third to rejuvenate them. As the first frost approaches in early November, you can let the remaining flowers go to seed if you want to encourage self-seeding for the following year. Otherwise, cut the plants back to the ground.

You can expect your first Feverfew harvest starting in early June and continuing through mid November, about 70 days after planting. The best time to harvest is when the small daisy-like flowers are in full bloom.

To harvest, simply snip off the flower heads and leaves with scissors or pruning shears. Harvesting regularly encourages continued production.

As the first frost approaches in early November, you can harvest any remaining flowers and foliage for drying and preserving. Hang them upside down in a cool, dark place until they are completely dry.

Here are some common issues you might encounter with Feverfew in your Texas garden:

Self-seeds Prolifically

• What it looks like: Seedlings popping up everywhere in your garden where you didn't intend to plant them.
• What causes it: Feverfew is a prolific self-seeder, especially if you let the flowers go to seed.
• How to fix/prevent it: Deadhead spent flowers regularly to prevent seed formation. If you want to allow some self-seeding, be prepared to thin out the seedlings in the spring.

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).

Leaf Miners

• What it looks like: Squiggly, white or yellow trails inside the leaves. The leaves may also appear blotchy or distorted.
• What causes it: Leaf miners are the larvae of small flies, moths, or sawflies that burrow into the leaves and feed on the tissue.
• How to fix/prevent it: Remove and destroy infested leaves. Use row covers to prevent adult insects from laying eggs on the plants. Neem oil can also be effective.

Texas Specific Challenges: The hot-to-extreme heat and variable humidity can stress Feverfew, making it more susceptible to pests and diseases. Ensure good air circulation and avoid overwatering to minimize these problems. During periods of drought, provide supplemental water to keep your plants healthy and productive. Fire ants can also be a nuisance; use appropriate baiting methods to control them in your garden.

Feverfew makes a great companion plant for several garden vegetables and flowers.

Tomatoes benefit from Feverfew planted nearby because Feverfew repels some common tomato pests. Roses also benefit from Feverfew's pest-repelling properties. Herbs like rosemary and thyme are good companions as they share similar growing requirements and attract beneficial insects.

Avoid planting Feverfew near anything that prefers consistently moist soil, as Feverfew thrives in drier conditions.