Seed heads rattle on the dry stems of goldenrod and black-eyed Susan in late fall, and the same cold that browns them is what native wildflower seeds are waiting for. In Nova Scotia, you can sow from late fall into winter, or else in early spring.
When Is the Best Time to Plant Wildflower Seeds in Nova Scotia?
Sow in October and November, so the seed spends the winter outdoors, or in April and May, as soon as the soil can be worked. Frost dates below are for Halifax, in Canadian hardiness zone 6b.
- In October and November, scatter seed on bare ground, since many native wildflower seeds need a cold, moist winter before they germinate.
- Through winter, the seed stays put in the soil, and a fall sowing does not come up in fall but waits until the following spring.
- In January or February, a missed fall window can still be rescued, because the seed still gets the winter cold it needs.
- In April and May, sow as early as the soil can be worked, using seed that was kept cold and dry over the winter.
- After a spring sowing, keep the soil moist until the seedlings emerge, since dry spells at that stage stop germination.
In Halifax, the average last spring frost is May 7, and the average first fall frost is October 18. Those are midpoints, so frost arrives later than the spring date in about half of years and earlier than the fall date in about half as well. Upland and northern parts of the province run weeks behind Halifax. These months follow the nearest comparable climate in upstate New York and New England, so confirm local timing with a garden centre, a garden society or a provincial gardening group.
Nova Scotia — the year and the numbers
- State
- Nova Scotia
- Hardiness zones
- 6b
- Last spring frost
- May 7
- First fall frost
- October 18
- Annual rain
- 55 in
- Lawn zone
- cool-season
- Source
- Environment and Climate Change Canada — Canadian Climate Normals 1981-2010, station HALIFAX STANFIELD INT'L A · Halifax
How to Sow Wildflower Seeds in Nova Scotia
Good sowing is mostly about contact between seed and bare soil. The steps are short, and each has a reason.
- Prepare the site first, because seedlings cannot compete with an established mat of growth.
- Remove the sod and the weeds down to bare soil, since turf and vigorous weeds shade and crowd out young wildflowers. Turning a lawn into a meadow starts with this step.
- Broadcast the seed by hand, walking the bed in a steady pattern so the coverage stays even.
- Press the seed against the soil without burying it, for example by stepping on it or tamping it with a board. Most native wildflower seed is sown on the surface or barely covered, and pressing gives it the contact it needs to take up moisture.
- Water a spring sowing regularly until the seeds germinate, because a seed that dries out after it starts to swell will not recover.
- Leave a fall or winter sowing unwatered, since the winter moisture and cold do that work.
Annual wildflowers can bloom the first year. Native perennials often take a year or two, so a new meadow looks sparse at first, and that is normal.
Wildflowers That Grow Well in Nova Scotia
Native wildflowers do well because they are adapted to the regional climate and can survive adverse conditions. Research has also found them more attractive to pollinators than non-natives, at about four times the appeal. A meadow of grasses and native wildflowers becomes self-sustaining over time.
These species are suited to meadow plantings of this kind, with notes drawn from regional extension guidance.
| Wildflower | How it does in Nova Scotia | Why |
|---|---|---|
| Black-eyed Susan | Quick to establish, with a long summer bloom into fall | Fast grower that self-seeds freely and tolerates drought and salt |
| Purple coneflower | Long summer bloom and interest across seasons | Drought resistant, tolerates infertile soil and feeds birds with its seeds |
| Bee balm | Long summer bloom | Drought tolerant, and its tubular flowers attract hummingbirds |
| Lanceleaf coreopsis | Dependable in summer heat and humidity | Drought tolerant and a host plant for butterfly and moth larvae |
Columbine, foxglove beardtongue, oxeye sunflower, goldenrod and aster fit the same meadow. Whichever you choose, buy a regional mix of native species so the seed suits local conditions.
When to Sow, Water and Mow Wildflowers in Nova Scotia
The year divides into sowing in the cold months, watering in spring, and mowing when the season ends. Each gesture has a sign you can read in the yard as well as a month.
| Task | Best timing in Nova Scotia | Why then |
|---|---|---|
| Sow in fall | October and November, with January or February as a fallback | Winter cold and moisture break seed dormancy |
| Sow in spring | April and May, once the soil can be worked | Early sowing gives seedlings moist, cool ground to start in |
| Water seedlings | After a spring sowing, until the seeds have germinated | Seeds sown in spring must stay moist to sprout |
| Mow | Late in the season, after monarch migration | Protects butterflies and other insects still using the stems |
Bloom runs from June through September. Coreopsis and columbine open by late June, followed by bee balm and oxeye sunflower in midsummer, then goldenrods and asters into fall. Mow after those finish, leaving standing stems as long as insects are using them.
Where to Get Wildflower Advice in Nova Scotia
The province has no county extension offices, so advice comes from the provincial agriculture ministry, local gardening groups and garden centres.
- Nova Scotia’s agriculture department, Nova Scotia Agriculture, is the place for questions on native species and soil testing, and its guidance is worth reading before you buy seed.
- A local garden society or master gardener group can tell you how your district runs compared with Halifax, which helps in upland areas.
- A nearby garden centre can point you to a regional native mix, and late summer is a good time to ask, before the fall sowing.
Common Questions
Can You Plant Wildflower Seeds in Winter in Nova Scotia?
Yes. January or February sowing still gives many seeds the cold they need, so it works as a fallback when fall passes. Scatter the seed on bare soil or a thin cover of snow, and it will come up in spring.
Do Wildflowers Bloom the First Year?
Annual wildflowers can bloom the first year after sowing. Native perennials often wait a year or two, so expect green growth first, with flowers following as the roots settle in.
How Should You Store Wildflower Seed Before a Spring Sowing?
Keep it cold and dry over the winter, in the refrigerator or another place that stays just above freezing. Then sow it as early in spring as the soil can be worked.