Pansies are the flower for the seasons when nothing else wants to bloom: they flower through cool spring and autumn, and in mild winters they keep going when the rest of the garden is bare. Their little faces, in every colour from deep purple to soft yellow, are the first colour of the year in many gardens.
What makes pansies special is their love of cool weather — they are hardy, and they actually flower best when days are cool and nights are cold, fading in summer heat. That makes them perfect for autumn planting in mild zones, where they bloom through winter, and for spring planting in cold zones, where they flower until the heat arrives. Treat them as a cool-season annual and they will reward you.
Pansies at a glance
| Growing factor | What pansies need |
|---|---|
| Sun | part shade |
| Soil pH | 6.0–6.5 |
| Days to germination | 10–14 |
| Days to maturity | 60–80 |
| Spacing | 6–9 inches apart |
| Water needs | moderate |
| Cold tolerance | hardy |
| Family | Violaceae |
Starting seeds
Pansies give you a choice: start seeds indoors for earlier flowers, or sow direct once the soil warms. For the earliest display, sow indoors a few weeks before your last frost — late winter in Zones 3–5, early spring in Zones 6–8, late winter in Zones 9–10 — and transplant out after the frosts end. For direct sowing, wait until the soil is workable and warming: late spring in Zones 3–5, mid-spring in Zones 6–8, early spring in Zones 9–10. Zones 11–13 are frost-free, so both methods work through much of the year; check your local extension service for the best local dates. Seeds germinate in 10–14 days. Keep seed mix or soil evenly moist until seedlings are up, and give indoor seedlings as much light as you can. Our seed starting calculator plans your indoor sowing date, and the germination time calculator estimates when to expect seedlings.
Transplanting and planting out
Transplant seedlings out after the last frost, on a cloudy day or in the evening so they do not wilt in the sun. Space plants 6–9 inches apart — that spacing is what keeps air moving and disease down — and water each plant in well. Our plant spacing calculator works out exactly how many plants fit your bed, and the square foot garden planner helps lay them out.
Soil and feeding
Pansies grow best in fertile, well-drained soil with a pH of 6.0–6.5. Dig in compost before planting — it feeds the soil and helps it hold moisture without getting soggy — and mulch after planting to keep the roots cool and the weeds down. Feed during the growing season with a balanced fertiliser at the label rate, roughly once a month while plants are actively growing, and stop feeding as the season ends. Our fertiliser calculator works out the right amount for your bed, and the compost ratio calculator helps you make good compost to dig in.
Watering
Pansies have moderate water needs: keep the soil evenly moist while plants are establishing and flowering, and water deeply rather than little and often so the roots grow down. Water at the base in the morning so the foliage dries during the day, mulch to hold moisture in, and watch for wilting in hot, dry spells. Our watering calculator gives a starting point for your bed size, and the watering schedule generator can build a routine around it.
Sunlight and temperature
Pansies need part shade — morning sun with shade from hot afternoon sun. Pansies are hardy and tolerate frost and cold weather well, so they can be planted out earlier and left in the ground over winter in most zones. In frost-free Zones 11–13, heat and a lack of winter chill can limit performance, so give them the coolest spot you have. Check your zone with the hardiness zone finder before choosing varieties. Our sunlight calculator can check whether your spot gets enough sun.
Pests and diseases
The pests and diseases to watch for on pansies are aphids, slugs, cutworms. Aphids cluster on young growth, and slugs can eat seedlings and low flowers. Cutworms may cut young plants at the base, so protect seedlings and check the soil around them. Check plants weekly, looking under leaves as well as on top, and act early. Hand-pick larger pests, knock aphids off with a strong spray of water, and remove badly affected leaves. Keep the area weed-free and avoid wetting the foliage when you water, since damp leaves invite fungal disease. Our pest identifier helper can help identify what you are seeing, and the plant disease checker helps narrow down leaf and stem problems.
Companion plants
Good companions for pansies are lavender, marigolds, garlic, chives. Lavender, marigolds, garlic and chives are good neighbours, and pansies also pair well with spring bulbs — plant them over tulips and daffodils for a bed that flowers for months. Our companion planting finder can suggest more pairings for your bed plan.
Harvesting
Pansies are grown for their flowers, and picking them is the way to keep them blooming. Deadhead spent flowers regularly, snapping them off with the stalk, and the plants will produce new blooms for weeks. Pick flowers in the morning for use as edible garnishes — pansy flowers are edible and make a pretty decoration for salads and cakes. Pull plants up once summer heat makes them leggy and they stop flowering. Our harvest date calculator can estimate your picking date from your sowing date, and the vegetable yield estimator helps you work out how much a bed will produce.
Common problems and fixes
| Problem | Likely cause | Fix |
|---|---|---|
| Plants go leggy in summer | heat | Plant pansies for cool seasons and replace them when heat arrives. |
| Seedlings cut at the base | cutworms | Protect stems with a collar and check the soil around seedlings. |
| Flowers eaten overnight | slugs | Water in the morning and protect low flowers from slugs. |
Plants go leggy in summer
Pansies are cool-weather plants, and summer heat makes them stretch, flower poorly and eventually die. This is normal, not a failure: grow them for spring and autumn, and replace them with heat-loving flowers when summer comes.
Seedlings cut at the base
A seedling found lying flat with its stem cut clean through at soil level is classic cutworm damage. Push a small cardboard collar around each seedling at planting time, and check the soil around damaged plants — the culprit is usually curled up just under the surface.
Flowers eaten overnight
Slugs love low-growing pansy flowers and can eat a whole plant's blooms in one wet night. Water in the morning so the soil surface is dry by evening, and keep the bed clear of leaves and debris where slugs hide during the day.
Frequently asked questions
How long does it take to grow pansies?
From planting to maturity takes 60–80 days. Seed germination takes 10–14 days, and the total time depends on whether you start from seed, a nursery plant, or a bulb or cutting.
How far apart should I plant pansies?
Space pansies 6–9 inches apart. That spacing gives each plant room for air movement, which keeps disease down, and room to reach its full size without crowding its neighbours.
What soil pH do pansies need?
Pansies prefer a soil pH of 6.0–6.5. Test your soil before amending it — most garden soils are close enough, and guessing with lime or sulphur can do more harm than good.
When is the best time to plant pansies?
In cold zones, plant in spring for flowers until summer heat arrives. In mild zones, plant in autumn — pansies are hardy and will bloom through winter and into spring. They germinate in 10–14 days and reach maturity in 60–80 days.
Are pansies frost-hardy?
Yes, pansies are hardy and tolerate frost and light freezes well. A hard freeze can damage flowers, but the plants usually recover and bloom again once it warms up.