Phacelia Companion Planting

Phacelia (Phacelia tanacetifolia) is one of the most effective insectary plants for attracting hover flies, parasitoid wasps, and predatory beetles. Each phacelia plant can support production of thousands of hover fly larvae that consume aphids.

Sow phacelia at tomato bed borders. Also excellent as a cover crop that attracts beneficials when it blooms before incorporation.

Phacelia flowers attract native bees (Halictidae, Megachilidae) and honeybees that are critical pollinators for squash. Enhanced pollination improves fruit set and berry count in cucurbits.

Sow phacelia strips between squash hills. Phacelia is frost-tender -- sow after last frost.