06/01/2026
Borage (Borago officinalis) is one of the most productive pollinator plants you can put in a vegetable garden β and almost no one grows it. πΏ
The flowers are vivid cobalt-blue, star-shaped, and produced continuously from early summer until the first frost. Bumblebees and honeybees work them heavily, which makes borage particularly useful planted near tomatoes, squash, and strawberries that need consistent pollinator attention.
It is one of the easiest plants in the garden: direct-seed in place in spring, thin to about 12 inches apart, and give it regular water. It tolerates partial shade but flowers more prolifically in full sun. Germination takes about a week. No transplanting needed or wanted β borage does not move well.
The self-seeding behavior is the other reason to grow it: once you have borage in a bed, you essentially have it permanently. It drops seed heavily at the end of the season, and volunteers appear the following spring without any effort. Allow a few plants to go to seed each year and the population manages itself. π±
Borage also has a well-established reputation as a companion for tomatoes β some gardeners report reduced tomato hornworm pressure when borage grows nearby, though the mechanism is not fully understood. Its dense hairy foliage and strong scent are the likely deterrents.
One note: borage contains low levels of pyrrolizidine alkaloids. This is relevant if you plan to use the plant in any culinary way β moderate use is the standard guidance. As a garden plant, no concern applies.