Borage in Zone 6B — Texas

Borage is a fantastic addition to any Texas garden, offering beautiful blue, star-shaped flowers and leaves with a refreshing cucumber-like flavor. It's incredibly versatile – use the flowers in salads, freeze them in ice cubes for drinks, or let the bees enjoy them! Plus, it's just plain satisfying to grow something that looks so unique and thrives with minimal fuss.

Our Texas weather can be a bit much, with that brutal Texas heat and unpredictable rainfall, but Borage is surprisingly resilient when planted at the right time. With our long growing season, you can easily get a couple of harvests from late spring through fall.

You can transplant Borage seedlings outdoors from mid March through early April. Before planting, make sure to harden off your seedlings. This means gradually exposing them to outdoor conditions for about a week to prevent shock.

Space your Borage plants 12-18 inches apart to allow for good air circulation. Keep an eye on the forecast – we can still get some unexpected freezes around this time, so be ready to cover your seedlings if needed.

Direct sowing is the way to go with Borage, and it's super easy. Sow seeds directly into the garden from late March through early September. Borage prefers soil temperatures between 60-70°F for optimal germination.

Prepare your soil by loosening it and removing any rocks or debris. Plant seeds about ¼ inch deep and 12-18 inches apart. Keep the soil consistently moist until seedlings emerge. Borage is known to self-seed readily, so be prepared for volunteers in the following seasons.

Borage needs moderate watering to thrive in our Texas gardens. During the hottest part of the summer, especially July and August, you'll need to water more frequently. A good rule of thumb is to water deeply when the top two inches of soil feel dry to the touch – that's the "finger test."

Aim for about 1 inch of water per week, either from rainfall or irrigation. Watering at the base of the plant is generally best, but with our variable humidity, overhead watering isn't usually a problem as long as it's done in the morning so the foliage can dry out before nightfall.

Signs of underwatering include wilting leaves and stunted growth. Overwatering, on the other hand, can lead to root rot, so watch out for yellowing leaves and a generally unhealthy appearance. Mulching around your Borage plants with organic matter like shredded leaves or compost helps retain moisture and regulate soil temperature, which is crucial during the Texas heat.

You can expect your first Borage harvest around mid May if you plant in early spring, and continue harvesting all the way through mid November. The star-shaped blue flowers are ready to harvest when they are fully open. The young leaves are also edible and have a refreshing cucumber flavor.

To harvest, simply snip off the flowers or leaves with scissors or your fingers. Avoid damaging the main stem. Regular harvesting encourages continued production. As the first frost approaches in early November, you can harvest any remaining flowers and leaves to dry or use fresh.

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

Self-Seeding Aggressively

• What it looks like: Borage seedlings popping up everywhere in your garden, even where you didn't plant them.
• What causes it: Borage readily self-seeds, especially with our long growing season and mild winters.
• How to fix/prevent it: Deadhead flowers before they go to seed to prevent unwanted seedlings. You can also pull up any volunteers that you don't want.

Powdery Mildew

• What it looks like: White or grayish powdery coating on leaves and stems. Leaves may curl, yellow, and die.
• What causes it: Fungi that thrive in warm days, cool nights, and moderate humidity. Dry leaf surfaces actually favor it.
• How to fix/prevent it: Improve air circulation by spacing plants properly and pruning. Remove affected leaves. Neem oil or potassium bicarbonate sprays can help. A milk spray (1 part milk to 9 parts water) can also be effective.

Can Become Leggy

• What it looks like: Long, stretched stems with fewer leaves, making the plant look sparse and weak.
• What causes it: Insufficient sunlight or overly rich soil.
• How to fix/prevent it: Ensure your Borage plants get at least 6 hours of sunlight per day. Avoid over-fertilizing. Prune back leggy stems to encourage bushier growth.

Texas Specific Challenges: The combination of hot-to-extreme heat, variable humidity, and unpredictable rainfall can stress Borage plants, making them more susceptible to powdery mildew and leggy growth. Proper watering and spacing are crucial to help your Borage thrive in our unique Texas climate. Keep an eye out for fire ants, too, as they can disturb the soil around your plants.

Borage is a great companion plant for several vegetables and herbs in the Texas garden. It attracts pollinators, which is beneficial for tomatoes, squash, strawberries, and cucumbers. Borage is said to deter tomato hornworms, making it an excellent companion for tomatoes. It also improves the flavor and growth of strawberries. Avoid planting Borage near fennel, as they can inhibit each other's growth.