Gaillardia

Family: Asteraceae

Genus: Gaillardia

Species: pulchella

History

Gaillardia, or blanket flower, brings fiery colour and a wildflower look to the garden. Native to North America, it was named after an 18th-century French magistrate and patron of botany. In Australia, it's appreciated for thriving in heat and drought, blooming cheerfully for months on end.

Sowing Calendar

Best Months to Plant – Gaillardia
Climate ZoneJanFebMarAprMayJunJulAugSepOctNovDec
Cool/Mountain✓✓✓✓
Temperate✓✓✓✓✓✓✓
Arid✓✓✓✓
Subtropical✓✓✓✓✓✓✓
Tropical✓✓✓✓✓✓✓✓
Cool/Mountain – Gaillardia
MethodJanFebMarAprMayJunJulAugSepOctNovDec
Start in trays✓✓✓✓
Plant out transplants✓✓✓✓
Direct sow✓✓✓✓
Temperate – Gaillardia
MethodJanFebMarAprMayJunJulAugSepOctNovDec
Start in trays✓✓✓✓✓✓✓
Plant out transplants✓✓✓✓✓✓✓
Direct sow✓✓✓✓✓✓✓
Arid – Gaillardia
MethodJanFebMarAprMayJunJulAugSepOctNovDec
Start in trays✓✓✓✓
Plant out transplants✓✓✓✓
Direct sow✓✓✓✓
Subtropical – Gaillardia
MethodJanFebMarAprMayJunJulAugSepOctNovDec
Start in trays✓✓✓✓✓✓✓
Plant out transplants✓✓✓✓✓✓✓
Direct sow✓✓✓✓✓✓✓
Tropical – Gaillardia
MethodJanFebMarAprMayJunJulAugSepOctNovDec
Start in trays✓✓✓✓✓✓✓✓
Plant out transplants✓✓✓✓✓✓✓✓
Direct sow✓✓✓✓✓✓✓✓

Where to Plant

Edges

Edges
• Narrow growing spaces along borders, fences, or pathways
• Perfect for low-growing or decorative plants like alyssum or herbs
• Helps soften garden boundaries and attract beneficial insects
• Makes efficient use of underutilised garden space

Borders & Companion Rows

Borders & Companion Rows
• Found along the edges of garden beds, paths, or between main crops
• Ideal for herbs, flowers, or pest-repelling plants that support the main crop
• Helps attract pollinators and beneficial insects
• Makes good use of smaller spaces and improves overall garden health

Vertical Supports & Trellises

Vertical Supports & Trellises
• Structures used to support climbing or vining plants such as beans or cucumbers
• Maximise vertical space and improve air circulation
• Useful in small gardens to increase planting density
• Can also provide shade or act as garden partitions

Pre-treatment

None Identified

There are no pre treatments required for germination.

Sowing Method

Start in Trays

• Fill seed trays or punnets with quality seed-raising mix
• Sow seeds at the correct depth—refer to seed packet for guidance
• Place trays in a warm, sheltered location with good light
• Mist or bottom-water to avoid disturbing small seeds
• Transplant seedlings once they develop 2–4 true leaves

Direct Sow

• Sow seeds directly into prepared garden soil or outdoor containers
• Best for plants that dislike transplanting, such as root vegetables and beans
• Loosen soil and remove weeds before sowing
• Sow at the recommended depth and spacing, then water gently
• Keep the area moist until germination and thin seedlings if needed

Watering

High

• Requires consistently moist soil, particularly during warm or dry periods
• Best suited to shallow-rooted or leafy plants such as lettuces, leafy greens, and tropical herbs
• May need daily watering in hot, exposed locations or sandy soils
• Avoid letting soil dry out—wilting may occur quickly if moisture is lost
• Use mulch and drip irrigation to maintain even moisture levels

Fertilisation

Frost

Frost Tolerant

These plants can tolerate light to moderate frosts and may survive through cooler seasons.

Maintenance and Harvesting

Gaillardia, or Blanket Flower, should be deadheaded regularly to encourage more blooms. In cooler climates, cut back the whole plant after flowering to promote longevity. It's drought-tolerant, so avoid overwatering. Every couple of years, divide mature clumps in autumn or spring to keep the plant vigorous.

Pests and Diseases

Aphids

Aphids are tiny, soft-bodied insects that cluster on new growth and the undersides of leaves. They suck sap from plants, causing leaves to curl, yellow or become distorted. As they feed, they excrete sticky honeydew that encourages sooty mould, and colonies can build quickly in warm weather.

Start with organic controls: blast colonies off with a firm jet of water, encourage beneficial insects like ladybirds and lacewings, and spray neem oil or insecticidal soap to disrupt feeding. Keep plants well watered and avoid excess nitrogen that promotes soft growth. If pressure remains high, selective chemical sprays can be used sparingly, taking care to protect pollinators and beneficials.

Leaf spot

Leaf spot describes several fungal or bacterial diseases that create dark, often round lesions on foliage—sometimes with yellow halos. Severe infections cause premature leaf drop and reduced vigour, especially during warm, wet spells or when leaves stay damp.

Reduce spread by removing infected leaves, watering at the base, and spacing plants for airflow. Mulch to limit soil splash and rotate crops. Organic preventatives include copper and sulfur sprays applied early. If disease escalates, registered fungicides offer a chemical backup.

Crown / root rot (Wet)

Crown and root rots are caused by water‑loving fungi that attack stems at the soil line and roots below. Plants yellow, wilt, and eventually collapse because their roots can no longer supply water and nutrients—most common in heavy, waterlogged soils.

Prevention is key: improve drainage, raise beds, and water deeply but less often. Avoid injuring stems at the soil line and rotate away from affected beds. Solarising soil in summer can knock back pathogens. Chemical drenches have limited benefit in home gardens and are best used preventatively rather than curatively.

Powdery mildew

Powdery mildew appears as a white, talc‑like coating on leaves and stems. It thrives in warm days, cool nights, and still air, and can weaken plants by reducing photosynthesis, leading to yellowing and early leaf drop.

Prune for airflow, avoid overhead watering, and remove badly affected foliage. Organic sprays such as milk solution, potassium bicarbonate, sulfur, or neem help suppress outbreaks. Chemical fungicides are effective when started early, but use sparingly to preserve beneficial organisms.

Two-spotted spider mites

Two‑spotted spider mites are tiny sap‑suckers that stipple leaves, causing a speckled, yellow look and fine webbing—worst in hot, dry conditions. Unchecked, plants can defoliate.

Increase humidity around plants, hose undersides of leaves, and release or encourage predatory mites. Neem and horticultural oils suppress populations organically. Miticides exist for heavy outbreaks; rotate actives to reduce resistance.

Aster yellows

Aster yellows can affect plant health and yields in home gardens. Typical symptoms include slowed growth, discolouration, and reduced productivity, often triggered by weather, nutrition, or cultural conditions.

Start with cultural fixes: rotate crops, improve soil with compost, water consistently, and choose resistant varieties. Organic sprays or amendments can reduce severity; chemical options are a last resort and should be used carefully and in accordance with labels.

Growing Tips

• Gaillardia short-lived in wet soils; ensure sharp drainage.
• Gaillardia flowers less in shade; position in full sun.
• Gaillardia becomes floppy in rich soil; avoid excessive feeding.