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How to Grow Angelface Blue Angelonia

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Angelface Blue Angelonia

Angelonia angustifolia 'Angelface Blue'

flower

Angelface Blue Angelonia is a compact, heat-loving annual flower prized for its vibrant blue-purple spikes of delicate blooms that attract pollinators. The plant grows in a tidy mound and produces continuous flowers from spring through fall, making it ideal for borders, containers, and mass plantings. Its drought tolerance and low maintenance requirements make it a favorite for hot climate gardens.

Looking for a specific variety?

Angelface Blue Angelface White Angelface Pink Angelface Purple Angelface Dark Purple Angelface Wedgewood Blue

When should you plant Angelface Blue Angelonia in your zone?

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Example Angelface Blue Angelonia timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Angelface Blue Angelonia

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Angelface Blue Angelonia blooms

    Around Jun 1

    ≈ 45 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Angelface Blue Angelonia dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily
💧
Water: Water regularly when soil is dry to touch; drought tolerant once established. Reduce watering in fall. Avoid overwatering which causes root rot.
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Spacing: 12 inches
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Days to maturity: 45-60 days to first flowers
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Planting depth: Surface sow or press seeds lightly into soil; do not cover completely as seeds need light to germinate

Soil

Type: Well-draining loamy to sandy soil
pH: 6.0-7.0
Amendments:
Compost Peat moss or coconut coir Perlite for drainage Aged manure

Growing Zones

Find your zone →

Thrives in zones 5-11; grown as an annual in cooler zones

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b

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Growth Stages

1

Seedling

2-3 weeks

Tiny seedlings emerge with 2-4 true leaves, requiring gentle handling and consistent moisture without waterlogging.

Keep soil moist but not soggy; provide bright indirect light; maintain 70-75°F temperature; avoid fungal issues with good air circulation.

2

Vegetative Growth

3-4 weeks

Young plants develop bushy foliage with narrow, lance-shaped leaves; stems remain compact and full without flowering yet.

Pinch back growing tips at 3-4 inches tall to encourage branching; fertilize with balanced fertilizer every 2 weeks; ensure consistent watering; transplant to larger containers if needed.

3

Flowering

8-12 weeks or until frost

Dense spikes of small blue-purple tubular flowers emerge from the leaf axils and terminal ends, creating a striking columnar display.

Deadhead spent flower spikes regularly to encourage more blooms; switch to low-nitrogen fertilizer to promote flowering over vegetative growth; water consistently; mulch to retain moisture and regulate soil temperature.

4

Peak Blooming

6-10 weeks

Plant reaches full height (12-18 inches) and produces abundant overlapping flower spikes creating dense color coverage.

Continue deadheading; monitor for spider mites and whiteflies in hot weather; reduce nitrogen fertilizer; water deeply during heat waves; provide afternoon shade in extremely hot zones.

5

Senescence

Until frost

As temperatures cool in fall or if plants become stressed, flowering gradually diminishes and foliage may thin.

Reduce watering; stop fertilizing; plant will be killed by frost; collect seeds from mature flower spikes if desired; pull plants and compost before first freeze in cooler zones.

Companion Planting

Plan your garden →

Plant with:

Lantana Salvia Verbena Gaura Esperanza Zinnias Marigolds Sweet potato vine Dusty Miller Ornamental grasses

Avoid planting near:

Plants requiring constant moisture and cool roots Mint (aggressive spreader) Tall shade-casting perennials that block sunlight

Common Pests

  • Increase humidity by misting; spray with water to dislodge; use neem oil or insecticidal soap; ensure adequate air circulation

  • Use yellow sticky traps; spray with neem oil or insecticidal soap; remove heavily infested leaves; maintain good air flow

  • Spray with strong water stream; use insecticidal soap; apply neem oil; introduce beneficial insects like ladybugs

  • Improve air circulation; avoid overhead watering; spray with sulfur or fungicide if severe; remove affected foliage

Uses

🍳

Ornamental only

Culinary

Angelonia is purely ornamental and not consumed. However, its nectar attracts hummingbirds and butterflies, making it valuable for pollinator gardens and supporting wildlife food sources. [source]

🏠

Cut flowers and arrangements

Household

Angelonia makes excellent fresh-cut flowers lasting over a week in a vase, and can be used in floral arrangements, bouquets, and mixed displays for home decoration. [source]

🎨

Dried flowers

Craft

Flower spikes can be dried for dried arrangements and crafts by hanging upside down in a dry location for 2-3 weeks; they retain color well and add texture to potpourri and dried displays. [source]

🦋

Pollinator support

Wildlife

Angelonia is highly attractive to hummingbirds, butterflies, and bees, making it an excellent nectar source for pollinators throughout the growing season. [source]

🏠

Garden design and landscaping

Household

Its compact mounding habit and continuous blooms make Angelonia ideal for filling containers, creating color-coordinated borders, mass plantings, and color-themed gardens with minimal maintenance. [source]

Harvest Tips

Angelonia is grown for continuous seasonal blooms rather than a single harvest. Deadhead faded flower spikes regularly by pinching or cutting just below the spent flowers to encourage new bloom production. Cut flowers last 7-10 days in a vase if desired. Collect seed pods in late summer/early fall if you want to save seeds for next year—allow flower spikes to dry on the plant, then collect brown papery seed capsules.

Fun Facts

  • 🌱 Angelonia flowers resemble tiny snapdragons, which is why they're sometimes called 'Summer Snapdragons,' though they're unrelated botanically.
  • 🌱 The Angelface series was specifically bred for its compact, bushy habit and improved heat and drought tolerance compared to older Angelonia varieties, making modern cultivars much more gardener-friendly.
  • 🌱 Despite being an annual in most zones, Angelonia can overwinter and regrow in zones 10-11, sometimes returning year after year as a tender perennial.

Gardening Terms

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

Annual Compost Deadhead Full Sun Mulch Pinch Back Transplant True Leaves
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