Bulb · Iridaceae
Freesia
Freesia refracta
Send up arching sprays of intensely fragrant winter blooms from a handful of humble corms.
Full sun
Every 3–7 days
61–70°F · 16–21°C
70–84 days
Overview
Freesia (Freesia refracta) belongs to the Iridaceae family and grows from a small corm. This tender South African native earns its keep with a powerful, sweet fragrance that fills a room from just a few stems.
The blooms line up along one side of a wiry, arching stem and pop open in sequence, so a single spray keeps performing for days. Freesia hits its stride as a cool-season grower, flowering winter into early spring about 10 to 12 weeks after the corms go in. Look for it in white, gold, blue, and red, with the white forms carrying the sweetest scent of the bunch.
Freesia is hardy in USDA zones 9 and 10, where corms can stay outdoors and return year after year. Anywhere colder, grow it in pots and bring the corms in before frost, since a hard freeze finishes them off. Hand it full sun, a fast-draining mix, and a careful watering hand, because wet feet are the one thing this plant will never forgive.
Care
The short version: give freesia full sun and a fast-draining mix, water steadily but lightly while it grows, then taper off as the foliage yellows and the corms slide into dormancy.
Light
Aim for full sun and freesia rewards you with sturdy stems and a full flush of flowers. It will get by in partial shade, but pile on too much and the stems turn weak and floppy while the bloom count drops off.
Water
Keep the mix evenly moist through active growth, watering roughly every 3 to 7 days, and never let the corms sit wet. Overwatering rots them fast. Once the foliage starts to yellow, cut water back sharply and let the plant drift into dormancy.
Soil
Freesia craves an organic-rich, well-drained mix loosened with coarse sand or crushed rock, sitting anywhere from 6.0 to 8.0 on the pH scale. It stays fussy about drainage, and standing water will kill the corms outright.
Temperature
This is a cool-season plant that peaks between 61°F and 70°F (16°C to 21°C). Push it into hot weather and the bloom cuts short.
Humidity
Ordinary household or garden humidity suits freesia fine, so skip chasing any target figure. Good airflow counts for far more, since stagnant air rolls out a welcome mat for pests and rot.
Feeding
Feed monthly through active growth and flowering with a balanced or low-nitrogen liquid fertilizer. Lean too hard on nitrogen and you steer the plant toward leaves at the expense of flowers.
Pruning
There is no real pruning to do here. Just deadhead the spent flowers and let the foliage die back on its own before you lift and store the corms, because those fading leaves are busy feeding next year's bloom.
Repotting
Think replant, not repot. Launch each season with fresh or stored corms, and lift and divide when a crowded clump starts handing back fewer, smaller blooms or simply outgrows its pot.
Size & spacing
Freesia climbs 12 to 24 inches (30 to 60 cm) tall and spreads 6 to 12 inches (15 to 30 cm) across. Set the corms about 1 to 2 inches apart for room to fill in.
When to plant
Freesia runs on a cool-season clock. Tuck corms in from late summer through early winter, let them build through the cool months, and watch fragrant flowers arrive winter into early spring, roughly 10 to 12 weeks after you plant.
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
Nearly every freesia headache circles back to water and a short list of familiar pests. Spot the early signals on corms and leaves, and you can act fast before the damage spreads.
Corms turn to mush and the plant caves in
When corms go soft, brown, and mushy and the plant collapses, you are almost certainly looking at corm rot. Overwatering and poorly drained soil top the list of causes, with fusarium wilt or root rot pathogens close behind. Lift a corm to confirm the soft brown tissue and check for waterlogged soil, then stop overwatering, sharpen the drainage, toss the rotted corms, and replant only healthy ones in a fresh, well-drained, organic-rich mix. Head it off next time with coarse sand or crushed rock worked in and a lighter watering hand. This one runs severe.
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
New growth that comes in distorted and twisted, leaves that turn sticky and shiny, and tiny insects on the plant all point to aphids or thrips. Check the fresh growth and leaf undersides for clusters or thrips to confirm, then blast them off with a jet of water and follow up with insecticidal soap if they hang around. Inspect regularly and keep the air moving to shut them out. Count this as a setback rather than a disaster.
Fix:
- Rinse off insects with water
- Treat with insecticidal soap if infestation persists
Chewed foliage with silvery trails
Ragged, irregular holes in leaves and flowers plus silvery slime trails, often turning up after watering or rain, are the calling card of slugs and snails. The holes paired with those slime trails confirm it, so hand-pick the culprits in the evening and set out bait or barriers. Keep conditions from staying too wet and clear away the debris where they hide. This stays cosmetic.
Fix:
- Hand-pick slugs and snails
- Use bait or barriers around plants
Toxicity
Freesia makes an easy pick for a household full of animals. The ASPCA counts it among the non-toxic bouquet flowers, and no case of true poisoning turns up in pets or livestock. A pet that chews a stem might get a brief bout of mild stomach upset, nothing more.
Safe for
People · Cats · Dogs · Horses · Rabbits · Livestock · Birds
Cats None
Cats are safe here, with nothing toxic in the leaves, flowers, or corms. A nibble might spark a brief, mild stomach upset, the same as any off-diet plant.
Dogs None
Dogs face no poisoning risk. The worst you might see is a little drooling or a loose stool after one eats something it had no business eating.
Horses Safe
Horses meet no known toxins in freesia. A mouthful of foliage passes through with, at most, a passing digestive grumble.
Rabbits Safe
Rabbits are not at risk, since nothing in the plant is poisonous. A sudden big helping of any new green can loosen the gut, though, so introduce it slowly.
Livestock Safe
Livestock like cattle, goats, and sheep pick up no poisoning from grazing the foliage. As with any animal, unfamiliar plant material can stir up a mild, short-lived upset.
Birds Safe
Birds face no toxic threat, whether kept as pets or visiting the backyard. Nothing about freesia calls for keeping a bird away.
People Safe
People find freesia non-poisonous, which is exactly why it shows up so often in cut bouquets. It is not grown to eat and there is no reason to taste it, but a stray bit does no 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 fans out across a broad range of colors, and a handful of named cultivars turn up far more often than the rest.
Royal Blue
Royal Blue puts out blue flowers, an uncommon shade among the warmer freesia colors.
Golden Passion
Golden Passion carries gold to yellow blooms and gets grown above all else for its strong, sweet fragrance.
White River
White River flowers pure white, and white forms are reported to pack the richest scent of all.
Red Lion
Red Lion delivers red flowers and brings the boldest splash of color to a freesia planting.
How to propagate
Freesia multiplies with almost no effort. Split the corms you already grow, or kick off a fresh season straight from a bag.
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 offsets is the easiest, most reliable route. Wait for the foliage to yellow and the plant to go dormant, then lift the whole clump and pull apart the small cormels ringing the parent. Replant them the next cycle and they bloom 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, pointed end up, in a well-drained mix any time from late summer through early winter. Flowers follow about 10 to 12 weeks later, winter into early spring.
SeedModerate
Sow seed in the growing season · Seed-grown plants take 1-2 years to reach flowering size
Seed works, but it takes patience. Sow during the growing season and the plants need 1 to 2 years to reach flowering size. That runs a lot slower than division, so few home gardeners take it on.
Myths
Freesia Corms Can Be Left In The Ground All Year In Any Climate.
Freesia is frost-tender and hardy only in USDA zones 9 to 10. Everywhere colder, you either lift and store the corms, or grow them in containers and overwinter them indoors. Skip that step and a hard freeze ends the season for good.
Freesia Is Poisonous To Cats And Dogs.
The ASPCA lists freesia among its non-toxic bouquet flowers, and it has never been reported as harmful to pets. A nibble might bring a little mild stomach upset, the same reaction most plants trigger outside an animal's usual diet. That passing grumble is not real poisoning.