How to Grow Pollinator Flower Mix (Calendula, Phacelia, Borage)

Pollinator Flower Mix (Calendula, Phacelia, Borage)

Calendula officinalis, Phacelia tanacetifolia, Borago officinalis

flower

A dynamic trio of annual flowers specifically selected to attract and support pollinators including bees, butterflies, and beneficial insects. These plants bloom prolifically with nectar and pollen-rich flowers, creating a vibrant garden ecosystem while providing excellent habitat for beneficial insects that support crop production and natural pest control.

When should you plant Pollinator Flower Mix (Calendula, Phacelia, Borage) 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 Pollinator Flower Mix (Calendula, Phacelia, Borage) timeline →

Example Pollinator Flower Mix (Calendula, Phacelia, Borage) timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Pollinator Flower Mix (Calendula, Phacelia, Borage)

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Pollinator Flower Mix (Calendula, Phacelia, Borage) blooms

    Around May 17

    ≈ 30 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Pollinator Flower Mix (Calendula, Phacelia, Borage) dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily minimum; 8+ hours ideal for maximum bloom and pollinator activity
💧
Water: Moderate; water deeply 1-2 times weekly during establishment. Once established, all three are drought-tolerant. Keep soil consistently moist but not waterlogged. Reduce watering in cooler months.
📏
Spacing: 8-12 inches between plants; Calendula 12 inches, Phacelia 8-10 inches, Borage 12-18 inches (grows larger) inches
📅
Days to maturity: 30-60 days to first bloom (Calendula and Phacelia faster); 50-70 days for Borage
🌱
Planting depth: Seeds surface-sown to 0.25 inches deep; press gently into soil. Direct sow or transplant seedlings after last frost.

Soil

Type: Well-draining loamy to sandy soil; calendula and phacelia are adaptable
pH: 6.0-7.0
Amendments:
Compost (2-3 inches) Aged manure Perlite or sand for drainage

Growing Zones

Find your zone →

Zones 3-10; all three thrive across most of North America. Calendula and Phacelia prefer cooler spring/fall seasons; Borage tolerates heat better.

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

Sign up free to see if Pollinator Flower Mix (Calendula, Phacelia, Borage) grows in your zone — and get a personalized planting timeline.

Get my Pollinator Flower Mix (Calendula, Phacelia, Borage) timeline →

Growth Stages

1

Germination & Seedling

2-3 weeks

Seeds sprout in 7-14 days. Seedlings develop first true leaves; plants are small and tender.

Keep soil moist but not waterlogged. Provide bright light (indoors or sheltered outdoors). Thin seedlings to proper spacing when 2-3 inches tall to prevent crowding.

2

Vegetative Growth

2-4 weeks

Plants develop bushy foliage and establish root systems. Phacelia and Borage grow rapidly; Calendula develops sturdy stems.

Water regularly as soil dries. Pinch back Borage if leggy to encourage bushiness. No fertilizer needed if soil is amended; excess nitrogen reduces flowering.

3

Budding & Early Flowering

1-2 weeks

Flower buds form visibly. Calendula shows gold/orange buds; Phacelia shows delicate purple-blue buds; Borage shows star-shaped blue buds.

Maintain consistent moisture. Begin deadheading spent flowers on Calendula to encourage continuous blooming. Pollinators start visiting.

4

Peak Flowering & Pollination

4-8 weeks (continuous if deadheaded)

Plants are covered in open flowers. Calendula displays orange daisy-like flowers; Phacelia shows spiky blue-purple flower clusters; Borage displays five-pointed blue stars.

Deadhead regularly to extend bloom (essential for Calendula). DO NOT spray pesticides—allow pollinators unrestricted access. Water during dry spells. All three attract diverse pollinator species.

5

Seed Production & Senescence

3-4 weeks to seed maturity

If allowed to mature, plants set seed. Flowers fade; seed heads develop. Phacelia and Borage self-seed readily.

Leave some flowers to mature if you want natural reseeding next season. Allow spent plants to dry for several weeks before removing. Seeds provide food for birds.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Fennel (allelopathic; inhibits most plants) Heavy pesticide-dependent crops (reduces pollinator safety) Dense shade-casting structures

Common Pests

  • Spray insecticidal soap on undersides of leaves; strong water spray; encourage natural predators (ladybugs, parasitic wasps). Borage attracts beneficial parasitoid wasps.

  • Strong water spray; encourage ladybugs and parasitic wasps; neem oil spray if severe. All three flowers attract natural aphid predators.

  • Increase humidity with regular misting; insecticidal soap; strong water spray; encourage predatory mites and phytoseiid mites.

  • Row covers on young Phacelia; neem oil; diatomaceous earth; reflective mulches.

  • Ensure good air circulation; reduce overhead watering; sulfur dust; baking soda spray (1 tbsp per gallon water). Less common in sunny locations.

Uses

🦋

Pollinator Habitat & Ecosystem Support

Wildlife

Calendula, Phacelia, and Borage are among the most effective insectary plants for attracting and sustaining diverse pollinators including honeybees, native bees, butterflies, moths, and beneficial insects. Phacelia is especially prized for attracting parasitoid wasps that control crop pests; Borage attracts beneficial flies and wasps; Calendula provides extended nectar availability. [source]

🍳

Edible Flowers & Herbal Teas

Culinary

Calendula petals flavor and color soups, salads, and rice dishes with a mild, slightly bitter taste. Borage flowers and leaves are edible with a cucumber-like flavor, popular in salads, drinks, and as garnishes. Phacelia is not commonly eaten but has mild nectar. [source]

💊

Traditional & Herbal Medicine

Medicinal

Calendula has been used for centuries in herbal medicine for skin healing, anti-inflammatory, and antimicrobial properties; often made into infusions, salves, and tinctures. Borage seed oil is rich in gamma-linolenic acid (GLA) and is used for joint health and hormonal balance. Phacelia has minimal medicinal use but leaves contain compounds of interest. [source]

🏠

Skin Care & Natural Dyes

Household

Calendula infusions and extracts are primary ingredients in natural skin salves, creams, and oils for wound healing and soothing irritated skin. Calendula petals produce yellow to orange natural dyes for fabrics and paper. [source]

🎨

Ornamental Garden Design & Cut Flowers

Craft

All three flowers provide vibrant, continuous color for cutting gardens and pollinator-focused landscape design. Calendula blooms continuously; Phacelia's spiky blue-purple flowers add texture; Borage's blue stars provide contrast. Excellent for cottage gardens, meadow plantings, and regenerative agriculture. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

{"borage"=>"Harvest individual flowers for culinary use once open; they're edible and beautiful in drinks. For pollinator support, leave flowers on plant. Leaves are also edible when young and tender (harvest before flowering for best texture).", "phacelia"=>"Cut flower spikes when 50% open. Each plant produces multiple spikes over 3-4 weeks. Leave some flowers for seed production if desired; Phacelia self-seeds readily.", "calendula"=>"Pinch or cut flowers just after they open, in morning when pollen is highest. Remove petals when fully mature (bright orange). Deadhead spent blooms continuously for 4-8 weeks of production. Calendula is more about continuous flowering than one-time harvest."}

Fun Facts

  • 🌱 Phacelia tanacetifolia is so effective at attracting pollinators that beekeepers plant it specifically to improve honey production; it produces copious nectar even in poor soil and drought conditions.
  • 🌱 Borage flowers are used in Pimm's Cup cocktails and float as beautiful edible decorations in drinks; bees are so attracted to Borage that a single plant can sustain a small colony during slow nectar flow periods.
  • 🌱 Calendula has been called 'Marigold of the poor' historically because it was used medicinally by peasants and herbalists for centuries before modern pharmaceuticals; it's still one of the most widely used herbal remedies for skin care worldwide.

Gardening Terms

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

Join 30,000 gardeners planning their gardens with LizPlants.

Get your personalized Pollinator Flower Mix (Calendula, Phacelia, Borage) planting timeline

Tell us your zip code and we'll calculate exactly when to start Pollinator Flower Mix (Calendula, Phacelia, Borage) 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 Pollinator Flower Mix (Calendula, Phacelia, Borage) timeline →