Bulb · Iridaceae
Freesia
Freesia refracta
Arching sprays of intensely fragrant winter blooms that open one at a time.
Full sun
Every 3–7 days
61–70°F · 16–21°C
70–84 days
Overview
So what is freesia, exactly? It's a tender little corm from the Iridaceae family (Freesia refracta), and it hails from South Africa. What everyone falls for is the scent, which is genuinely strong for such a delicate-looking flower. The blooms line up along one side of a thin, arching stem and open in order, so a single spray keeps going for days rather than fading all at once.
This is a cool-season grower through and through. Pop the corms in and expect flowers about 10 to 12 weeks later, usually from winter into early spring. In USDA zones 9 and 10 the corms can just stay outside and come back year after year. Anywhere colder, you'll want to grow them in pots and bring the corms in before frost, because a hard freeze will finish them off.
Color-wise, you've got white, gold, blue, and red to play with, and if fragrance is your priority, the white forms tend to smell the sweetest. Freesia likes full sun, though it'll put up with a bit of partial shade, and it really wants a fast-draining mix. Careful watering is the whole game here. Wet feet? That's the one thing this plant simply won't forgive.
Care
The short version: give freesia full sun and a fast-draining mix, keep watering steady but light while it's growing, then ease off as the leaves yellow and the corms drift into dormancy.
Light
Full sun is what freesia really wants, though it'll tolerate a little partial shade without complaint. Skimp on the light, though, and you'll notice the difference fast: weak, floppy stems and fewer blooms to show for your trouble. So when in doubt, give it the brightest spot you've got.
Water
While it's actively growing, aim to keep the soil evenly moist, watering roughly every 3 to 7 days, but never let the corms sit in soggy ground. Overwatering is the quickest way to rot them, so err on the drier side. Once the foliage starts yellowing, cut way back on the water and let the plant slide into dormancy.
Soil
Reach for an organic-rich, well-drained potting mix, then work in some coarse sand or crushed rock to keep water moving through. A pH anywhere from 6.0 to 8.0 suits it fine. This plant is genuinely picky about drainage, and here's the thing: standing water will kill the corms, so that's the part you can't get wrong.
Temperature
Being a cool-season plant, freesia is happiest somewhere between 61°F and 70°F (16°C to 21°C). When the weather turns hot, don't be surprised if the blooming season gets cut short, since heat really isn't its friend.
Humidity
No need to fuss over a humidity number here: ordinary household or garden humidity is perfectly fine. What actually matters more is good airflow. Stagnant air is what tends to invite pests and rot, so a spot with a little movement goes a long way.
Feeding
Feed about once a month while the plant is growing and flowering, using a balanced or low-nitrogen liquid fertilizer. Why go easy on the nitrogen? Because too much of it just pushes the plant to make leaves instead of the flowers you're actually after.
Pruning
There's no real pruning to do with freesia, which is nice. Just deadhead the spent flowers as they finish. When the foliage starts fading, resist the urge to tidy it up and let it die back naturally, since those fading leaves are quietly feeding next year's bloom before you lift and store the corms.
Repotting
Freesia gets replanted rather than repotted, so each season kicks off with either fresh corms or ones you've stored. When corms get crowded, they start handing you fewer, smaller blooms or simply outgrow the pot, and that's your cue to lift and divide them.
Size & spacing
Expect freesia to reach somewhere around 12 to 24 inches (30 to 60 cm) tall with a spread of 6 to 12 inches (15 to 30 cm). When you're setting the corms, space them about 1 to 2 inches apart so each one has a little breathing room.
When to plant
Think of freesia as running on a cool-season clock. You tuck the corms in anywhere from late summer to early winter, let them grow through the chilly months, and around 10 to 12 weeks later you get those fragrant flowers, right through winter into early spring.
Northern hemisphere
Southern hemisphere
Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.
- Sow: Plant corms in pots in late summer through early winter (succession planting extends bloom)
- Plant: In zones 9-10, plant corms in fall; elsewhere grow in containers and overwinter corms indoors
- Harvest: Winter to early spring, about 10-12 weeks after planting
Hardiness
USDA hardiness zones: 9–10
Temperature: down to -7°C
Troubleshooting
Almost every freesia problem traces back to watering, with a handful of familiar pests filling out the rest. Keep an eye on the corms and leaves, and if you spot the early signs you can step in before the trouble really spreads.
Soft, mushy corms and a plant that flops over
If the corms turn soft, brown, and mushy and the whole plant collapses, you're likely looking at corm rot. The usual culprit is overwatering or poorly drained soil, though fusarium wilt or root rot pathogens can be behind it too. To check, lift a corm: soft brown mushy tissue plus waterlogged soil tells the story. Stop overwatering, improve the drainage, toss the rotted corms, and replant the healthy ones in a fresh, well-drained, organic-rich mix. Going forward, a fast-draining mix with coarse sand or crushed rock and a lighter hand on the watering will keep it from coming back. This one's severe, so act quickly.
Fix:
- Stop overwatering and improve drainage
- Discard rotted corms
- Replant healthy corms in fresh, well-drained organic-rich mix
Twisted new growth and sticky leaves
Distorted, twisted new growth along with shiny, sticky leaves and little insects usually points to aphids or thrips. Take a close look at the fresh growth and the undersides of the leaves for clusters of bugs or thrips to confirm it. A firm rinse with water often does the trick, and insecticidal soap handles the stubborn cases. Checking your plants regularly and keeping the air moving are your best defenses. It's more of a setback than a disaster, so no need to panic.
Fix:
- Rinse off insects with water
- Treat with insecticidal soap if infestation persists
Chewed leaves with silvery trails
Ragged, irregular holes in the leaves and flowers, plus silvery slime trails that show up after watering or rain, are the calling card of slugs and snails. Those holes paired with the shiny trails, often the morning after a good soak, pretty much confirm it. Hand-pick them in the evening and set out bait or barriers to slow them down. Keeping things from getting overly wet and clearing away the debris where they like to hide helps a lot. Honestly, this one's mostly cosmetic.
Fix:
- Hand-pick slugs and snails
- Use bait or barriers around plants
Toxicity
Got pets? Freesia is a friendly pick for the house. The ASPCA counts it among the non-toxic bouquet flowers, and there's no record of real poisoning in pets or livestock. Worst case, a pet that chews on a stem might get a brief, mild tummy ache.
Safe for
People · Cats · Dogs · Horses · Rabbits · Livestock · Birds
Cats None
Cats are in the clear here, since there's nothing toxic in the leaves, flowers, or corms. At most, a nibble might bring a brief, mild bit of stomach upset, just like any off-diet plant would.
Dogs None
Dogs face no poisoning risk from freesia. The worst you'd likely see is a little drooling or a loose stool after they've eaten something they shouldn't have.
Horses Safe
Horses have nothing to fear here, since there are no known toxins. A mouthful of foliage passes through with, at most, a passing digestive grumble.
Rabbits Safe
Rabbits aren't at risk either, since nothing about freesia is poisonous. That said, a big sudden helping of any new green can loosen the gut, so go slow with it.
Livestock Safe
Livestock like cattle, goats, and sheep won't be poisoned by grazing on the foliage. Keep in mind that any unfamiliar plant material can cause mild, short-lived upset in an animal.
Birds Safe
Birds face no toxic threat from freesia, whether they're pets or backyard visitors. There's simply nothing here that warrants keeping a bird away.
People Safe
People are safe too, which is exactly why freesia turns up in so many cut bouquets. It isn't grown to be eaten, so there's no reason to taste it, but a stray bit won't do any harm.
Non-toxic, but ingestion of plant material that is not part of a pet's normal diet may cause mild stomach upset.
Varieties
Freesia shows up in a lovely spread of colors, and while there are plenty out there, a few named cultivars tend to pop up again and again.
Royal Blue
Royal Blue is a blue-flowered cultivar, and blue happens to be a pretty uncommon color among the warmer freesia shades.
Golden Passion
Golden Passion is a gold to yellow form that's grown above all else for its strong, sweet fragrance.
White River
White River is a white-flowered cultivar, and white forms are said to carry the richest scent of the lot.
Red Lion
Red Lion is a red-flowered cultivar that brings the boldest splash of color to a freesia planting.
How to propagate
Want more freesia? It's an easy one to multiply. You can split the corms you've already got, or just start fresh with a new bag from the shop.
Offsets & pupsEasy
Lift and separate offset cormels when foliage yellows and the plant goes dormant · Replant and bloom the following season (about 10-12 weeks after replanting)
Dividing corms and their offsets is the easiest and most reliable way to go. Wait until the foliage yellows and the plant goes dormant, then lift the whole clump and gently pull apart the little cormels clustered around the parent. Replant them the next cycle and you'll see blooms about 10 to 12 weeks later.
Bulbs & cormsEasy
Plant corms in late summer through early winter for winter to early spring bloom · Flowers normally appear 10-12 weeks after planting
Starting from bought corms is every bit as simple. Set them 1 to 2 inches deep and 1 to 2 inches apart with the pointed end facing up, in a well-drained mix, anytime from late summer through early winter. Flowers follow about 10 to 12 weeks later, arriving through winter into early spring.
SeedModerate
Sow seed in the growing season · Seed-grown plants take 1-2 years to reach flowering size
Growing from seed works, but it's the slow lane. Sow during the growing season and be patient, because plants need 1 to 2 years to reach flowering size. Since that's a good bit slower than division, few home gardeners bother with it.
Myths
Freesia Corms Can Be Left In The Ground All Year In Any Climate.
Not quite. Freesia is frost-tender and only hardy in USDA zones 9 to 10, so leaving corms in the ground works there and there only. In colder spots you've got to lift and store the corms, or grow them in containers and overwinter them indoors. Skip that step and a hard freeze will finish them off.
Freesia Is Poisonous To Cats And Dogs.
Good news on this one. The ASPCA actually lists freesia among its non-toxic bouquet flowers, and it isn't reported as harmful to pets. A curious nibble might cause a bit of mild stomach upset, but that's true of most plants outside an animal's usual diet. That's ordinary tummy trouble, not real poisoning.