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Blanket flower

Gaillardia x grandiflora · Asteraceae

Blanket flower (Gaillardia x grandiflora) in flower
Photo: Captain-tucker, via Wikimedia Commons (CC BY-SA 3.0)

Daisies banded in red and yellow, like a woven blanket, from early summer to frost. It flowers hardest in poor, dry soil and is short-lived in rich or wet ground.

Size
20 in tall, 20 in wide
Zones
3 to 9
Light
Full sun
Flowers
Mid June to mid September
Pets
No toxicity recorded
Job in a bed
Drift

A bed built around blanket flower

The planner designed this bed around blanket flower when this page was made: a 12 × 6 ft (3.7 × 1.8 m) English border in zone 6, full sun. It chose the other plants from the 715 that suit those conditions and its dry soil, and says below why blanket flower stands where it does.

A 12 × 6 ft (3.7 × 1.8 m) bed at eye level in early August: Blanket flower, Winter heath, Sea thrift, Stiff goldenrod, Little bluestem 'Standing Ovation', Silver sage, Ornamental onion 'Purple Sensation', Spring starflower.
A 12 × 6 ft (3.7 × 1.8 m) English border in zone 6, full sun, seen from the path in early August.
4. Stiff goldenrod44. Stiff goldenrod44. Stiff goldenrod44. Stiff goldenrod44. Stiff goldenrod45. Little bluestem 'Standing Ovation'55. Little bluestem 'Standing Ovation'55. Little bluestem 'Standing Ovation'56. Silver sage62. Winter heath22. Winter heath22. Winter heath23. Sea thrift33. Sea thrift33. Sea thrift33. Sea thrift33. Sea thrift32. Winter heath21. Blanket flower11. Blanket flower11. Blanket flower17. Ornamental onion 'Purple Sensation'77. Ornamental onion 'Purple Sensation'72. Winter heath22. Winter heath22. Winter heath22. Winter heath22. Winter heath27. Ornamental onion 'Purple Sensation'77. Ornamental onion 'Purple Sensation'78. Spring starflower8. Spring starflower8. Spring starflower8. Spring starflower8. Spring starflower8. Spring starflower8. Spring starflower8. Spring starflower8. Spring starflower8. Spring starflower8. Spring starflower8. Spring starflower
From above, to scale. Each circle is one plant, as wide as the room it needs.

The plants

  1. 2 Winter heath × 9, pink
  2. 3 Sea thrift × 5, white
  3. 4 Stiff goldenrod × 5, yellow
  4. 5 Little bluestem 'Standing Ovation' × 3, tan
  5. 6 Silver sage × 1, silver leaves
  6. 7 Ornamental onion 'Purple Sensation' × 4, purple
  7. 8 Spring starflower × 12, blue

Why this plant

  • The only daisies. The others are bells, globes, flat plates and others. Shape reads at a distance, where colours blur.
  • The only red.
  • The only medium leaves here. The rest are fine and bold. A change of leaf keeps plants distinct when nothing is in flower.

Why here

  • At the back. At 20 in it is seen over winter heath (10 in) in front of it, and has nothing behind it to hide.
  • A step in the back row. Next to stiff goldenrod (4 ft) and ornamental onion 'Purple Sensation' (2½ ft): no two neighbours there are the same height, so the back steps up and down like a skyline.
  • 3 plants in one group. Massed, one kind reads as a single shape. Scattered, it would look spotty.

Why now

  • In flower for 15 weeks. From mid June to mid September.
  • Fills a gap. For 7 of those weeks nothing else on the plan is in flower.

Planned as an English border: 5 of the 5 groups (100%) are drifts, longer along the bed than they are deep. Stiff goldenrod and little bluestem 'Standing Ovation' anchor the back corners of the bed: the tallest plants on the plan stand there. The longest in flower is blanket flower: 15 weeks, from mid June to mid September.

The planner's own design check: 12 Excellent, 4 Good, 1 Satisfactory. It flags one thing to watch: Nothing on this plan is highly poisonous or an aggressive spreader.

Open this bed in the planner Change its size, the sun or the style, move plants about, or swap one for another.

Where blanket flower goes in a border

At 20 in it belongs in the middle of a bed. In the planner's ten height classes it is medium short (18 to 24 in).

Its job: drift. Planted in a small group of three or five, and repeated further along in the other number.

The hottest-coloured daisy, and the longest in flower. Keep it with other hot colours and grasses, or cool it with blue catmint. It lives two or three years; lean soil and sharp drainage make it last.

  • Hot colour for dry, sunny sites
  • Seaside and sandy gardens
  • Cut flowers

What to plant with blanket flower

Plants recorded as good partners for it, and what each pairing does:

  • Little bluestem: its blue-green leaves are a setting for the flowers, before and after; tall enough (3 ft) to stand behind it; happy in the same dry soil.
  • Catmint 'Walker's Low': in flower together for 14 weeks, from mid June; spires rising out of its mound; happy in the same dry soil.
  • Yarrow 'Moonshine': in flower together for nine weeks, from mid June; happy in the same dry soil.

Questions about blanket flower

Does blanket flower need sun or shade?

Blanket flower grows in full sun (6 or more hours of direct sun a day).

It wants dry, sharply drained soil, on the lean side, with no feeding, and little watering once settled.

What zones does blanket flower grow in?

USDA zones 3 to 9. It is hardy to zone 3, which means it survives winter nights down to about −30 °F (−34 °C).

Gardening in Canada? Use the USDA zone for your town: Canada's own zone map uses different numbers.

When does blanket flower flower in my zone?

In zone 5 it flowers mid June to mid September. As a summer flower it moves about half a week for every zone: earlier where it is warmer.

Roughly when blanket flower is in flower
Zone 3Late June to mid September
Zone 4Late June to mid September
Zone 5Mid June to mid September
Zone 6Mid June to mid September
Zone 7Early June to mid September
Zone 8Early June to mid September
Zone 9Late May to mid September

Worked out from Hopkins' bioclimatic law: spring arrives about four days later for each degree of latitude north, and one zone is roughly two degrees. A warm spring or a cold one moves any garden two weeks either way.

How far apart should blanket flower be planted?

16 in (40 cm) apart, from the middle of one plant to the middle of the next. That is a little closer than its full width of 20 in (50 cm), so a group knits into one patch.

It grows 20 in (50 cm) tall. Give it the full distance from anything taller, or it will lean out towards the light.

How many blanket flower plants do I need?

At 16 in apart, set out in staggered rows:

  • 7 to fill 10 square feet (about 1 m²)
  • 8 for a single row 10 ft (3 m) long
  • 21 to fill a 4 × 8 ft bed on its own

In a mixed border, plant it as a group of three or five, with a second group further along in the other number.

In the bed above, the planner used three in one group.

Is blanket flower poisonous to dogs and cats?

No toxicity is recorded for dogs, cats, horses or people, according to NC State Extension.

"Not toxic" is not "edible": a pet that eats a lot of any plant can be sick.

Is there a native plant like blanket flower?

Blanket flower is not native to North America. These North American natives come closest to doing its job:

Matched the way the planner's Swap button matches plants: the same job in a bed, then size, then flowering time.

What flowers after blanket flower?

Blanket flower is over by mid September. These start as it finishes and carry the same spot on, so it never goes flat:

  • Garden chrysanthemum: from mid September to late October, 24 in tall.
  • October daphne: from mid September to late October, 8 in tall, to stand in front of it and cover its fading stems.
  • Meadow saffron: from mid September to mid October, 6 in tall, to stand in front of it and cover its fading stems.

What does blanket flower look like in winter?

Blanket flower dies down to the ground and there is nothing to see until spring. The old stems can be cut in autumn, or left until spring as shelter for overwintering insects.

More Gaillardia

In these guides

Zone guides: Zone 3 · Zone 4 · Zone 5 · Zone 6 · Zone 7 · Zone 8 · Zone 9

In flower in: June · July · August · September

Every fact on record

Type
Perennial
Size
20 in (50 cm) tall, 20 in (50 cm) wide
Plant
16 in (40 cm) apart
Height class
Medium short (18 to 24 in)
Place in the bed
Middle
Flowers
Mid June to mid September; daisies; red, yellow
Leaves
Medium texture, herbaceous; grey-green
Shape
Mounding, clumping
Hardy in
USDA zones 3 to 9
Light
Full sun
Soil
Lean, dry and sharply drained
Water
Low
Feeding
None needed
Family
Asteraceae

Checked against NC State Extension. Flowering times are for zone 5: later in colder zones, earlier in warmer ones. Toxicity and spread information is a general gardening guide, not veterinary or medical advice, and invasive status varies by region. If a person or pet eats a plant, contact poison control or a vet. Check your local invasive species list before planting anything with a spread warning.