← Plant Guides

How to Grow Gilia Achilleifolia

Wikimedia Commons

Gilia Achilleifolia

Gilia achilleifolia

flower

Gilia achilleifolia, commonly called Achillea-leaved gilia or finely dissected gilia, is a delicate annual wildflower native to California with feathery, finely divided foliage and clusters of small blue or purple flowers. The plant attracts pollinators and creates an airy, cottage-garden aesthetic. It thrives in dry conditions and requires minimal maintenance once established.

When should you plant Gilia Achilleifolia in your zone?

Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.

Get my Gilia Achilleifolia timeline →

Example Gilia Achilleifolia timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Gilia Achilleifolia

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Gilia Achilleifolia blooms

    Around Jun 16

    ≈ 60 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Gilia Achilleifolia dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily; tolerates partial shade in hot climates
💧
Water: Low water needs once established; water moderately during germination and seedling stage, then reduce. Allow soil to dry between waterings. Drought-tolerant mature plant.
📏
Spacing: 6 inches
📅
Days to maturity: 60-90 days
🌱
Planting depth: Surface sow or barely cover seeds; needs light to germinate

Soil

Type: Well-draining sandy or gravelly soil; tolerates poor soil
pH: 6.0-7.5
Amendments:
Perlite or coarse sand for drainage Avoid heavy compost or mulch

Growing Zones

Find your zone →

Thrives in USDA zones 9-10; also grows as a winter annual in zones 8-9

9a 9b 10a 10b

Sign up free to see if Gilia Achilleifolia grows in your zone — and get a personalized planting timeline.

Get my Gilia Achilleifolia timeline →

Growth Stages

1

Germination

1-2 weeks

Tiny seedlings emerge with cotyledons and first true leaves appearing.

Keep soil consistently moist but not waterlogged. Provide bright light. Germination occurs in 7-14 days at 60-70°F.

2

Vegetative Growth

3-4 weeks

Plant develops feathery, finely dissected foliage forming a delicate mound. Stems elongate and branch.

Thin seedlings to proper spacing. Reduce watering gradually. Do not fertilize; plant prefers lean soil. Light pinching back encourages branching.

3

Budding

2-3 weeks

Terminal flower buds form at branch tips; plant reaches near-mature height.

Maintain minimal watering. Ensure full sun exposure. Staking may be necessary in areas with wind or if grown in partial shade.

4

Flowering

4-8 weeks

Delicate blue, purple, or occasionally pink flowers bloom in small clusters. Flowers attract bees and butterflies.

Continue minimal watering. Deadhead spent flowers to encourage prolonged blooming. Monitor for pests attracted to flowers.

5

Seed Production

Ongoing

Flowers fade and small seed capsules develop. Plant naturally resows if seeds are allowed to mature.

Allow some flowers to remain for seed collection or natural reseeding. Stop deadheading if you want seeds. Plant typically declines as temperatures rise or water stress increases.

Companion Planting

Plan your garden →

Plant with:

California poppy Lupine Echinacea Salvia Desert marigold Penstemon Baby's breath

Avoid planting near:

Heavy feeders requiring frequent watering Aggressive spreaders that compete for water Plants requiring high humidity

Common Pests

  • Spray with water or insecticidal soap; introduce ladybugs; avoid over-fertilizing

  • Increase humidity slightly during hottest periods; spray with neem oil if severe

  • Yellow sticky traps; spray with insecticidal soap

Uses

🍳

Edible Flowers

Culinary

Gilia flowers are edible with a delicate, slightly sweet flavor. They make attractive garnishes for salads and desserts. [source]

🦋

Pollinator Support

Wildlife

The flowers attract bees, butterflies, and hummingbirds, making it an excellent choice for pollinator gardens and native habitat restoration. [source]

🏠

Cut Flowers

Household

Delicate branching stems with clustered flowers create airy, cottage-garden arrangements. Stems last 7-10 days in water. [source]

🎨

Dried Flower Arrangements

Craft

Stems dry well and retain color, making them suitable for pressed flower crafts and dried arrangements. [source]

Harvest Tips

Cut flowers in early morning when blooms are freshly open for best vase life. Collect seed pods after flowers fade but before they fully dry; store seeds in cool, dry location. Allow some plants to self-sow naturally for next season.

Fun Facts

  • 🌱 Gilia achilleifolia is native to the California chaparral and coastal sage scrub ecosystems, where it thrives in naturally dry conditions with minimal water after establishment.
  • 🌱 The plant's finely dissected leaves resemble Achillea (yarrow) foliage, which is why it earned the species name 'achilleifolia.' However, the two plants are unrelated.
  • 🌱 In California wildflower gardens, Gilia achilleifolia naturally reseeds year after year, providing reliable blooms with virtually no maintenance once established.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Annual Deadhead Full Sun Germination Partial Shade True Leaves
Shop Gilia Achilleifolia plants and related plants at Plant Addicts →

Join 30,000 gardeners planning their gardens with LizPlants.

Get your personalized Gilia Achilleifolia planting timeline

Tell us your zip code and we'll calculate exactly when to start Gilia Achilleifolia seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.

Get my Gilia Achilleifolia timeline →