Daffodil trumpets and tulip cups opening against the last patches of snow are a spring ritual across Ontario, and they start with a handful of bulbs planted in the fall. A few kinds handle the province’s winters and its hungry wildlife far better than others.
Best Spring Bulbs to Grow in Ontario
Daffodils, tulips and crocus all suit Ontario, because winters here deliver the cold that spring bulbs need to flower, and according to Iowa State University Extension, alliums also need that cold to bloom. Toronto sits in Canadian hardiness zone 7a (a Canadian rating, not a USDA zone). The planting window runs September and October, and November or even December works if the ground is still unfrozen.
Daffodils
Daffodils are the most dependable bulb to put in an Ontario bed. They are more vigorous than tulips and most other spring bulbs, they come back year after year, and deer and other animals leave them alone.
Each year the American Daffodil Society honors cultivars with the Wister Award, given for long-lasting flowers, disease resistance and good vigor. Look for that mark when choosing.
Tulips
Tulips give the boldest color, but they are often short-lived in the garden. Plan on treating the larger kinds as annuals, lifting them in late spring to make room for summer plants.
They are also a favorite food of voles, squirrels, rabbits and deer. Plant them where you can watch over them, close to the house rather than at the back of the lot.
Alliums
Alliums, the ornamental onions, close out the spring bulb season. They do not need a chill period to bloom, which makes them forgiving if a fall goes sideways.
Plant them in the same September to October window as everything else and let them follow the tulips.
Crocus
Crocus bring early color, though they share a weakness with tulips: voles, squirrels and rabbits go after them. Plant them in drifts so a few losses do not leave a bare patch.
Tuck them near daffodils, which animals leave alone, and the clumps are less likely to be dug up.
Ontario — the year and the numbers
- State
- Ontario
- Hardiness zones
- 7a
- Last spring frost
- April 30
- First fall frost
- October 16
- Annual rain
- 31 in
- Lawn zone
- cool-season
- Source
- Environment and Climate Change Canada — Canadian Climate Normals 1981-2010, station TORONTO LESTER B. PEARSON INT'L A · Toronto
How to Choose Spring Bulbs for Your Ontario Garden
Your choice depends less on the catalog photo than on what your yard throws at a bulb: hungry animals, a short list of free evenings, a bed that is already crowded. Match the bulb to the problem and it will earn its spot.
Start with winter, because most spring bulbs only flower after a long cold spell. An Ontario winter supplies it without any help from you.
| Your situation | What suits it in Ontario | Why |
|---|---|---|
| Cold winters you want a bulb to simply survive | Daffodils | They are more vigorous than tulips and last longer as a reliable perennial bulb. |
| Deer, voles or squirrels visit the yard | Daffodils | Animals eat tulips and crocus but leave daffodils alone. |
| Little time for yearly replanting | Daffodils and alliums | Daffodils return on their own, and alliums need winter cold to bloom. |
| A small bed or crowded border | Tulips lifted after bloom | Larger bulbs like tulips can be treated as annuals and lifted in late spring to free the space. |
| You want a bulb that needs real winter cold | Tulips and hyacinths | Most spring bulbs need about 12 to 16 weeks of cold to flower, which a normal Ontario winter gives. |
Crocus fit almost any of these situations as an accent, as long as you accept some losses to animals.
Which Spring Bulbs Suit Different Parts of Ontario
Ontario is a big province, and spring does not arrive everywhere at once. The bulbs stay the same, but the pace of the season shifts with where you live.
- Toronto: Spring frost lingers on average until April 30, and in one year out of two it falls later than that, so the date marks the middle of a window rather than a safe day. Daffodils, tulips, alliums and crocus all fit here, and tulips are most worth lifting where beds are crowded.
- Northern Ontario: Spring runs weeks behind Toronto, so bulbs bloom later and the ground freezes sooner in fall. Plant toward the early part of the window, and choose daffodils, the most dependable perennial bulb, for beds you do not want to replant.
Wherever you garden, the same fall habits apply, and the local season only moves the calendar a little.
Spring Bulb Buying Mistakes to Avoid in Ontario
Tulips Planted as Forever Bulbs
Tulips are often short-lived, and animals go after them.
Plant daffodils where you want a lasting show, and treat tulips as a seasonal bonus you may need to refresh.
Bulbs Left in the Bag
A bulb stored over the winter is a bulb wasted. Cold is what triggers flowering, so bulbs that never go into the ground never get it.
If bulbs are still in the bag after the usual window, plant them anyway, as long as the soil can be dug.
Leaves Cut Too Soon
After the flowers fade, the leaves keep feeding the bulb for next year. Cutting or tying green leaves weakens the bulb and shrinks the next bloom.
Remove only the faded flowers and leave the foliage until it turns brown.
Where to Get Spring Bulb Advice in Ontario
Ontario has no county extension office. The planting months here follow the nearest comparable climate, so confirm local timing with people who garden near you.
- The province’s agriculture and food service is the official starting point for provincial guidance, worth a look before fall planting.
- A local garden centre can confirm local timing, so ask when you shop in September.
- A local garden society or provincial gardening group can tell you how the season runs where you live, and many meet through the fall.
Common Questions
When Do Spring Bulbs Start to Come Up in Ontario?
Tulips, daffodils and other spring bulbs normally begin emerging from the ground in March or early April. Tulips flower April through May, and some daffodils can open as early as late February.
Can You Plant Forced Daffodils Outdoors?
Yes. Many forced daffodil cultivars perform well when planted outdoors, and they can be saved after indoor bloom. Plant them in the garden once the ground can be dug.
Do You Need to Chill Tulips in the Refrigerator Before Planting?
Not in Ontario. Chilling in the refrigerator is for places with winters too mild to give the cold, while an Ontario winter does that work for you in the ground.