Ornamental · Violaceae
Pansy
Viola × wittrockiana
Set them out as the weather cools and pansies open color through fall, winter, and spring.
Full sun
Every 2–4 days
19–64°F · -7–18°C
USDA 6–10
Overview
Pansies are the broad, flat-faced flowers of the cool-season garden, their five rounded petals overlapping into a nearly circular bloom in almost every color. Dark central blotches ink each face so it reads like a small expression. They belong to the violet family, a garden hybrid raised from wild violas, and their color deepens as the air turns cool and crisp rather than warm.
The plant sits low and mounded, a tuft of scalloped green leaves just 4 to 9 inches (10 to 23 cm) tall, with the flowers held on short stems just above the foliage. Each face may be one solid color, marked with a dark blotch, or streaked with fine whiskers that run from the center outward, and the palette stretches from soft, pale pastels to deep, near-black purples.
These are short-lived plants by design, grown as cool-season annuals whose flowers come thickest in fall, winter, and spring. Heat thins them out, drawing the stems long and lean and shrinking the blooms once summer sets in. The full, close mound gives way, and the plants are pulled once the weather turns.
Care
The short version: pansies want cool-weather planting in rich, well-drained soil, full sun to part shade, evenly moist soil, and regular deadheading to keep the flat-faced flowers coming.
Light
Pansies open fullest in full sun through the cool months, and they hold their color in partial sun or partial shade as well. Once spring warms, a spot with afternoon shade keeps the faces fresh and the petals from scorching.
Water
Keep the soil evenly moist but well-drained, letting the top inch dry a little between waterings. Direct the water at the base rather than over the leaves, since a wet leaf surface invites downy mildew and crown rot. In cool weather that usually falls around a drink every 2 to 4 days.
Soil
Root them in humus-rich, well-drained loam worked full of organic matter. A slightly acidic pH of 5.5 to 6.5 suits them, and free drainage matters more than anything for keeping the pale roots sound.
Temperature
This is a cool-weather flower, holding its bloom from about 19°F to 64°F (-7°C to 18°C). Established plants shrug off hard cold and a dusting of light snow, but the flowers thin and the stems draw long once the days push past the mid-60s.
Humidity
Average outdoor humidity, somewhere around 40% to 70%, suits pansies. Airflow across the leaves matters more, since still, damp air trapped in a crowded planting is what lets the fuzzy leaf diseases take hold.
Feeding
Feed with a balanced water-soluble fertilizer about once a month through the cool-season stretch in fall and spring. Light, steady feeding keeps the flowers opening without forcing the soft, glossy growth that aphids crowd onto.
Pruning
Deadhead spent flowers often, snapping off the shriveled faces to keep new buds forming and stop the plant setting seed. Pinch back any stem that draws leggy, which holds the mound compact and stretches the flowering season.
Repotting
Move container pansies into a larger pot once they fill the old one. The tell is roots circling the inside of the pot or pushing out through the drainage holes, or soil that dries almost as fast as it is watered.
Size & spacing
Pansies stay small, a mound just 4 to 9 inches (10 to 23 cm) tall spreading 9 to 12 inches (23 to 30 cm) across. That low, tight footprint fits the front edge of a bed, a pot, or the gaps among taller plants for early color.
When to plant
Pansies run on cool weather, not warmth. Set plants out in fall so the flowers open through the cool months and overwinter in mild zones, or plant in very early spring for a run of color before summer heat draws the plants thin.
Northern hemisphere
Southern hemisphere
Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.
- Plant: Fall (overwinters in mild zones) or very early spring
- Harvest: Fall, winter, and spring in cool weather; declines and gets leggy in summer heat
Hardiness
USDA hardiness zones: 6–10
Temperature: down to -23°C
Troubleshooting
Most pansy trouble shows up in two ways: small pests working the plant in cool, damp weather, and rot or stretching when the ground turns wet or the air turns warm. Caught early, the signs are easy to read and easy to fix. Match what you see on the leaves and stems below, then act before it spreads.
Limp, sagging plants above soggy ground with blackened, pulpy roots
A pansy limp over wet soil, slumped where the stem meets the ground, hides soft brown roots and a blackened crown beneath the surface, the ruin of crown and root rot in waterlogged, fungus-ridden ground. Nothing brings that tissue back, so the affected plants come out and go to the bin. Sharper drainage, less water, and a surface left to dry between waterings keep the roots firm and pale rather than mushy.
Fix:
- Remove and discard affected plants
- Improve soil drainage before replanting
- Reduce watering and avoid waterlogging
Yellow blotches above and a fuzzy gray-purple coat on the leaf undersides
Turn a yellow-blotched leaf over and the underside wears a soft gray-purple fuzz of spores, the surface of downy mildew as it grips the foliage in cool, humid, wet weather until the leaves curl and drop. Infected leaves and plants come out and go in the bin. Wider spacing and thinning open the crowded foliage to moving air, and base watering early in the day keeps the leaves dry, since that damp surface is where the fuzz spreads.
Fix:
- Remove and discard infected leaves and plants
- Improve air circulation by spacing and thinning
- Avoid overhead watering and water early in the day
Curled, distorted young leaves glazed sticky and dotted with tiny dark insects
Look closely at a fouled shoot tip and you see aphids, soft green or black specks packed along the youngest stems where a sticky film glazes the leaves and curls them. They mass on that tender growth through cool spring weather. A hard jet of water tears them off, and insecticidal soap or horticultural oil finishes the ones that cling on. Overrun shoots come away, and a lighter hand with nitrogen slows the soft, glossy growth they crowd onto.
Fix:
- Spray plants with a strong jet of water to dislodge aphids
- Apply insecticidal soap or horticultural oil to affected growth
- Remove heavily infested shoots
Tattered, hole-riddled leaves crossed by pearly slime ribbons
Ragged bites torn through the leaves and petals, edged with a dried silver trail that catches the light, are the mark of slugs and snails feeding through the cool, damp shade after dark. Picking them off by hand in the evening lifts them away, and iron phosphate bait laid along their trails thins the rest. The mulch, boards, and debris that hold the damp shelter them by day, and morning watering dries the ground before dusk.
Fix:
- Hand-pick slugs and snails in the evening
- Set out iron phosphate slug bait
- Remove mulch, boards, and debris that shelter them
Spindly, stretched stems carrying smaller, sparser blooms as the heat builds
Once the days climb past 64°F (18°C), the tidy mound loosens into thin, stretched stems that carry fewer and smaller flowers, the plain look of summer heat stress rather than any disease, since pansies are cool-season plants. Pinching those leggy stems and deadheading draws out one more flush of blooms. Afternoon shade and steady moisture hold the plant through warm spells, and real summer heat marks the point to swap it out as a cool-season annual.
Fix:
- Pinch back leggy stems and deadhead to encourage rebloom
- Provide afternoon shade and consistent moisture in warm spells
- Replace plants as a cool-season annual when summer heat sets in
Toxicity
Pansies are among the safest flowering plants to grow. The ASPCA lists them as non-toxic to cats, dogs, and horses, and the flowers are edible for people. A curious pet or a grazing animal has nothing to fear from a bed of the soft, low blooms.
Safe for
People · Cats · Dogs · Horses · Rabbits · Livestock · Birds
Cats None
Pansies are safe for cats, so a petal or leaf pulled loose by curious teeth does no harm. A cat that swallows a large mouthful of the soft foliage may have a brief, mild stomach upset, and it settles on its own.
Dogs None
Dogs can chew the leaves and flowers with no harm at all. The only thing to expect is the loose stool that follows any dog bolting a big mouthful of tender greenery, and it clears up fast.
Horses Safe
Pansies pose no danger to a horse grazing near a bed or border. The plant holds no toxin, so a grazing horse needs no special caution around the low, leafy clumps.
Rabbits Safe
Rabbits can eat both the leaves and the flowers safely, and the soft petals make a treat many keepers offer. Keep portions sensible, as with any fresh green, to keep their digestion steady.
Livestock Safe
Cattle, goats, and sheep face no risk from pansies in a pasture or planting. The whole plant, leaf, stem, and flower alike, is free of harmful compounds.
Birds Safe
Pansies are safe around birds, and backyard hens will peck the bright petals to shreds without any harm. Nothing in the plant will hurt them.
People Safe
The velvety flowers are genuinely edible, scattered fresh over salads or candied into a glassy shell on cakes. Wash them first, or grow your own without pesticides, since garden-center plants can carry spray residue on the petals.
No special handling needed; flowers are edible, though garden plants may carry pesticide residue and should be washed or grown pesticide-free before eating.
Varieties
Pansies come in dozens of named series, but a few keep turning up at the garden center. These are the ones worth knowing by name.
Majestic Giants
This series carries the largest flowers, broad faces around 3 to 4 inches across stamped with bold dark blotches, and they hold up through both cold and heat.
Matrix
Matrix plants stay compact and even, their flowers held upward on short stems and opening early rather than stretching.
Delta
Delta is a vigorous, early-blooming series whose faces come either clear or marked with a central blotch, and it tolerates both cold and heat.
Cool Wave
Cool Wave is the trailing type, its stems spilling and cascading over an edge, which suits it to hanging baskets or use as a groundcover.
How to propagate
Pansies are nearly always raised from seed, and the fine seed asks for some patience and steady warmth before it stirs.
SeedModerate
Sow indoors in mid to late summer for fall planting, or in late winter for early spring planting
Pansies grow from small seed or arrive as leafy transplants rather than from cuttings. Seed sown indoors in mid to late summer suits fall planting, and seed sown in late winter sets plants out in early spring. That fine seed takes a steady hand to germinate, so many people leave the stage to a grower and pick up flats of already-leafed plants.
Myths
Pansies and violas are the same plant.
They are close cousins, not the same plant. Pansies carry larger but fewer flowers, while violas and Johnny-jump-ups scatter smaller blooms in greater numbers across the plant. The violas also take heat a little better.
Pansy petals, for all their color, are strictly for looking at and risky to eat.
The soft, velvety flowers are genuinely edible. They go fresh into a salad or set under a candied shell on cakes, provided they are grown without pesticides before they reach the plate.
Pansies unfurl their best color under hot summer sun.
The reverse is true. Pansies are cool-season plants that bloom fullest in fall, winter, and spring, then the stems stretch thin and the flowers fade once summer heat arrives.