How to Grow Ice Wings

Ice Wings

Diascia 'Ice Wings'

flower

Ice Wings is a compact, mounding diascia cultivar prized for its delicate white and pale blue flowers that bloom prolifically throughout the growing season. This tender perennial is typically grown as an annual in most climates and produces attractive small, snapdragon-like flowers on low, spreading stems. It's an excellent choice for containers, hanging baskets, and garden edging.

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Example Ice Wings timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Ice Wings

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Ice Wings blooms

    Around May 17

    ≈ 30 days after planting

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

Growing Conditions

☀️
Sun: Full sun to partial shade; 6-8 hours of sunlight daily for best blooming
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Water: Keep soil consistently moist but not waterlogged. Water regularly, especially during hot weather and when grown in containers. Reduce watering in winter dormancy.
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Spacing: 6-8 inches
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Days to maturity: 30-45 days to first flowers
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Planting depth: Surface sow or plant transplants at soil level; seeds need light to germinate

Soil

Type: Well-draining loamy soil with moderate organic content
pH: 6.0-7.0
Amendments:
Compost or peat moss for moisture retention Perlite or coarse sand for drainage Balanced slow-release fertilizer

Growing Zones

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Thrives in zones 9-11; grown as an annual in cooler climates

9a 9b 10a 10b 11a 11b

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Growth Stages

1

Seedling

2-3 weeks

Tiny seedlings with small linear cotyledons and first true leaves appearing

Keep soil moist, provide bright indirect light, maintain 65-70°F. Do not cover seeds; they need light to germinate.

2

Vegetative

3-4 weeks

Young plants develop branching stems and small lance-shaped foliage, creating a low mounding habit

Pinch growing tips to encourage bushier growth. Gradually increase light exposure. Water regularly but allow soil surface to dry slightly between waterings.

3

Budding

2-3 weeks

Flowering stems elongate and flower buds form at branch tips, plant becomes increasingly compact and dense

Begin light fertilization every 2 weeks with balanced or slightly higher phosphorus fertilizer. Maintain consistent moisture and full sun exposure.

4

Flowering

8-12 weeks and beyond

Abundant delicate white flowers with pale blue or violet throats cover the mounding plant in continuous blooms

Deadhead spent flowers to encourage continuous blooming. Water consistently but avoid wetting foliage. Continue biweekly fertilization. Reduce heat stress with afternoon shade in hot climates.

5

Decline/Dormancy

Variable depending on climate

In cool climates or as seasons change, flowering slows and plant may decline; in zones 9-11, may persist through winter

In frost-prone areas, treat as annual and remove spent plants. In mild zones, reduce watering and fertilizer. Prune back damaged or overgrown stems.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Heavy clay soil plants Water-demanding bog plants Very tall plants that shade considerably

Common Pests

  • Increase humidity, spray with water, use insecticidal soap or neem oil if severe

  • Yellow sticky traps, insecticidal soap, neem oil, or horticultural oil spray

  • Spray with water, use insecticidal soap, or apply neem oil

  • Improve air circulation, reduce humidity, use sulfur dust or fungicidal spray if needed

Uses

🎨

Container and hanging basket gardening

Craft

Ice Wings is an excellent trailing and mounding plant perfect for hanging baskets, window boxes, and container gardens. Its cascading habit and prolific blooms make it ideal for vertical gardening displays. [source]

🏠

Garden edging and border planting

Household

Use Ice Wings to edge pathways, flower beds, and garden borders where its compact mounding form and delicate white-blue flowers create attractive definition and visual interest. [source]

🦋

Pollinator attraction

Wildlife

The small snapdragon-like flowers of Ice Wings attract bees, butterflies, and other beneficial pollinators throughout the blooming season, supporting garden biodiversity. [source]

🎨

Floral arrangements and cutting

Craft

The delicate flowering stems can be cut for fresh or dried floral arrangements, though Ice Wings is more commonly enjoyed as a living ornamental display plant. [source]

Harvest Tips

Ice Wings is an ornamental flower, not harvested for food. Deadhead spent flowers regularly (at least twice weekly) to promote continuous blooming throughout the season. Pinch back stems occasionally to maintain compact, bushy form.

Fun Facts

  • 🌱 Diascia flowers have a unique 'window' on the lower petals that reflects ultraviolet light, visible to insects but not to human eyes, creating a hidden guide for pollinators.
  • 🌱 Ice Wings is native to South Africa, where diascias are found in mountainous regions and adapted to cool nights and bright sunny days.
  • 🌱 The name 'diascia' comes from the Greek word 'dis' (twice) and 'askos' (sac or pouch), referring to the two sacs at the base of the upper petals.

Gardening Terms

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

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