Feverfew in Zone 7B — Texas

Feverfew is a fantastic addition to any Texas garden. Its cheerful, daisy-like flowers brighten the landscape, and it's known to attract beneficial insects to your garden. Plus, it's a hardy herb with a slightly bitter taste that some folks find helpful for headaches.

Don't let Texas's unpredictable weather scare you off. Feverfew is surprisingly resilient, especially if you time things right. With our long 255-day growing season, you've got a good window to get it established and enjoy its benefits.

Starting Feverfew indoors gives you a head start, especially if you're aiming for an early spring harvest. Begin your seeds indoors from late December through mid January, about eight weeks before you plan to transplant. This is particularly useful given our early spring character here in Texas.

Use seed trays with a good seed-starting mix and provide warmth and light. Bottom watering is key to prevent damping off – set the tray in a shallow dish of water and let the soil absorb it from the bottom. Keep the soil consistently moist but not soggy.

Transplant your Feverfew seedlings outdoors from early to late March. Be sure to harden them off for about a week before planting. Gradually expose them to outdoor conditions to avoid shocking them – a little time each day in a protected spot.

Space your Feverfew plants 12-15 inches apart in well-draining soil. Even though March is typically mild, keep an eye on the forecast for any late freezes, which can happen here in Texas. If a freeze threatens, cover your young plants with a frost blanket.

Direct sowing Feverfew is an easy option, too, especially if you're not aiming for a super-early harvest. Sow seeds directly into your garden from early March through late August. This gives you a wide window, even with the Texas heat.

Prepare the soil by loosening it and removing any weeds. Gently press the seeds into the soil surface – they need light to germinate. Keep the soil consistently moist until seedlings emerge. Thin the seedlings to 12-15 inches apart once they're a few inches tall.

Feverfew is pretty drought-tolerant once it's established, making it a good fit for Texas gardens. However, it does need consistent moisture, especially when it's young. Overwatering is more of a concern than underwatering with this herb.

During the hotter months, especially in the peak of our Texas heat, 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 an inch of water per week, either from rainfall or irrigation. Water at the base of the plant to avoid fungal issues, which can be exacerbated by our variable humidity.

In spring and fall, you'll likely need to water less frequently. Watch for signs of underwatering, like wilting leaves, or overwatering, like yellowing leaves. A layer of mulch around your Feverfew plants can help retain moisture in the soil and suppress weeds, which is especially helpful given our unpredictable rainfall.

Deadheading is key to keeping your Feverfew plants blooming throughout the season. Simply snip off the spent flowers just below the flower head. This encourages the plant to produce more blooms instead of setting seed.

After the main flowering period, usually towards the end of summer, you can cut the plant back by about a third to rejuvenate it. As the first frost approaches in mid- November, you can leave some flower heads if you want it to self-seed, or cut it back completely for a tidier look. Just be aware that it can self-seed aggressively.

You can expect your first harvest of Feverfew around mid May through late November, about 70 days after planting. Look for the small, daisy-like flowers to be fully open. These blooms are what you'll harvest for their traditional herbal uses.

To harvest, simply snip off the flower heads with a pair of scissors or pruning shears. Be careful not to damage the rest of the plant. Regular harvesting encourages continued production, so keep harvesting those flowers as they bloom.

As the first frost approaches in mid- November, you can harvest any remaining flower heads. You can dry them for later use. Even if the plant dies back after a freeze, it may return in the spring if it has self-seeded.

Here are some common problems you might encounter growing Feverfew in Texas:

Self-Seeds Prolifically

• What it looks like: Small Feverfew seedlings popping up everywhere in your garden.
• What causes it: Feverfew readily drops its seeds, and they germinate easily in our climate.
• How to fix/prevent it: Deadhead flowers regularly to prevent seed formation. If you allow some flowers to go to seed, be prepared to pull out unwanted seedlings. Mulch can also help suppress germination.

Aphids

• What it looks like: Clusters of tiny green, black, or white insects on stems and leaf undersides. Sticky honeydew residue. Curled or distorted new growth.
• What causes it: These sap-sucking insects thrive in warm weather and can quickly multiply.
• How to fix/prevent it: A strong spray of water can knock them off. Encourage ladybugs and lacewings, which are natural predators. Insecticidal soap or neem oil can be used for heavy infestations. Avoid excess nitrogen fertilizer.

Leaf Miners

• What it looks like: Winding, white or brown trails inside the leaves.
• What causes it: Leaf miner larvae tunnel through the leaves, feeding on the tissue inside.
• How to fix/prevent it: Remove and destroy infested leaves. Use row covers to prevent adult flies from laying eggs on the plants. Neem oil can also help control leaf miner populations.

Texas Specific Challenges Our hot-to-extreme heat and variable humidity can stress Feverfew, making it more susceptible to pests and diseases. Ensure your plants have good air circulation and are not overcrowded. Consistent watering, especially during dry spells, is essential. Also, watch out for fire ants when you're working in the garden.

Feverfew is a great companion plant for several garden favorites.

• Tomatoes: Feverfew can help repel some tomato pests, like aphids and whiteflies, by attracting beneficial insects.
• Roses: Planting Feverfew nearby can deter rose aphids and other pests that commonly plague roses.
• Herbs: Many herbs, like rosemary and thyme, benefit from Feverfew's pest-repelling properties.

Avoid planting Feverfew near plants that are highly susceptible to aphids, as it can attract these pests to the area. Otherwise, Feverfew is a pretty versatile companion plant in the Texas garden.