After battling finicky allium, ramp, and delphinium seeds this year, I was thrilled when it was time to turn my eye to planting borage.
Borage is one of those plants that makes me feel like I am a world champion green-thumb.
A Bit About Borage
Borage, , is an annual herb in the forget-me-not, or Boraginaceae family that has naturalized across most of the United States.
alleviate symptoms of asthma.
It’s not only valuable in the kitchen and the medicine cabinet, but it can also be used in the garden as a cover crop to suppress weeds, help retain water, and enrich the soil.
Borage grows just about anywhere, and that’s only a slight exaggeration. It thrives in full sun to part shade locations, in containers, or spreading out in a meadow.
USDA Hardiness Zones 2-11 and isn’t too demanding when it comes to moisture or soil – which is why it pops up in sandy and clay soil alike. So long as it doesn’t have wet feet, borage will be happy to do its thing.
The plant features beautiful, bright blue flowers that have a distinct star shape. There’s also a cultivar available with stunning white flowers.
The stems are covered in fuzz and have a deep red color when they’re young. Plants grow to a mature height of about two feet.
Before you sprinkle your seeds into the soil, you need to do some prep work.
It’s easiest to sow borage seeds directly into the garden – in a full sun or part shade location – but you can start them indoors if you want.
peat moss, or sand into the soil to improve drainage.
You can also use some well-rotted compost worked into the top 12 inches of the soil to give your borage babies a boost of nutrients and to loosen up the soil.
If you’re planting in a container, make sure it’s at least 12 inches wide and deep, to accommodate the taproot, and that it has at least one drainage hole at the bottom.
If it has been used before, clean your pot with one part bleach to 10 parts water. Add a well-draining potting soil.
If you’re starting seeds indoors, use six-cell jumbo plug flats or three-inch pots. You need something large enough so that the long roots have room to spread out as they grow.
I like to use biodegradable pots with a seed starting mix so I don’t have to disturb the taproots.
But borage is resilient enough that you don’t have to worry too much as long as you take a little care when transplanting.
Where to Buy Seeds
You can usually find seeds available at your local garden center or nursery. Make sure you buy them from a reliable source to ensure the seeds are viable.
Seeds are available from Eden Brothers in a variety of packet sizes.
You can also find a variety with white flowers, also at Eden Brothers.
When to Sow
Start seeds outdoors in the spring when all danger of frost has passed, or start them indoors three to four weeks before the last frost.
Borage only takes about eight weeks to mature, so you can succession plant all summer long as long as you have eight weeks before the first frost.
Just keep in mind that it will bolt and go to seed more quickly in hot weather.
How to Sow Seeds
Borage seeds should be planted 1/4- to 1/2-inch deep, so you can either poke a hole and plop in a seed every 12 inches, or take the easy route and sprinkle seeds on the soil.
fine-spray hose head.
Before they germinate, you want to keep the soil moist but not waterlogged. The soil should feel slightly damp and stick together, but you shouldn’t see any water drip out if you give it a squeeze.
In about a week, sometimes up to two weeks, you should start seeing seedlings stick their heads out of the ground.
Initially, you’ll see a pair of shiny, wavy cotyledons appear. Later, you’ll start to see the true leaves emerge. These are hairy and have a matte, rough texture.
Once you see the true leaves, you can ease up on watering. That means you can allow the soil to dry out on the surface in between spritzes.
If you started your seeds indoors, you can transplant them into the garden when they are six to eight inches tall, and all danger of frost has passed.
Borage won’t complain if you give it part shade, meaning it gets only three or so hours of sun a day, but it will grow faster and bloom more profusely in full sun.
I planted borage from seed in late April in a sunny spot and you can see how happy the plant was by mid-June.
At the same time, I planted some seeds in my “cocktail herbs” container garden.
It’s getting three hours of sun a day, and the plant is a little leggier and about a week behind blossom-wise than my full sun borage.
That said, the leaves of both taste delicious, so it all depends on your goals.
The plants need regular water, but you can let the soil dry out a little between irrigation. When the top two inches of the soil feel dry, it’s time to top things off.
Growing Borage is a Self Esteem Boost
There’s something to be said about a plant that feels like a bit of a vacation compared to some of the more fussy plants out there.
Of course, I love the challenge of gardening, but sometimes you want a plant that you can grow from seed without it feeling like you’re waging an uphill battle.
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Kristine Lofgren is a writer, photographer, reader, and gardening lover from outside Portland, Oregon. She was raised in the Utah desert, and made her way to the rainforests of the Pacific Northwest with her husband and two dogs in 2018. Her passion is focused these days on growing ornamental edibles, and foraging for food in the urban and suburban landscape.