How to Grow Burrowing Bee Plant
iNaturalist
Burrowing Bee Plant
Collomia grandiflora
flowerBurrowing Bee Plant is a charming wildflower native to western North America, featuring clusters of pale pink to white fragrant flowers that attract native bees and pollinators. This low-growing annual or short-lived perennial blooms prolifically from late spring through summer, creating a delicate display in meadows and garden beds. The flowers emit a subtle, sweet fragrance that intensifies in warm weather.
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Example Burrowing Bee Plant timeline · Pittsburgh, PA (Zone 6b)
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Plant Burrowing Bee Plant
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Burrowing Bee Plant blooms
Around Jun 1≈ 45 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Burrowing Bee Plant dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-8, with best performance in cooler to moderate climates
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Germination & Seedling
2-3 weeksTiny seedlings emerge within 7-14 days with fine cotyledons and minimal foliage. Plants are delicate and vulnerable.
Keep soil consistently moist but not waterlogged. Provide bright light immediately. Thin seedlings to proper spacing once they develop true leaves. Avoid disturbing delicate roots.
Vegetative Growth
3-4 weeksPlants develop multiple stems and narrow, lance-like leaves forming a low, bushy mound. Foliage remains sparse and delicate.
Reduce watering frequency; allow soil to dry between waterings. Apply light mulch to conserve moisture without smothering stems. Avoid overfeeding with nitrogen, which promotes foliage over flowers.
Budding & Flowering
4-8 weeksDistinctive flower buds form at stem tips; delicate clusters of pale pink, white, or lavender tubular flowers open in succession over weeks.
Maintain consistent but light watering. Deadhead spent flowers to encourage continuous blooming. Support tall stems with gentle staking if needed. Plants are attractive to native bees and butterflies.
Seed Development & Maturation
2-3 weeksFlowers transition to small, round seed capsules containing numerous tiny seeds. Plants may begin to yellow or decline in hot weather.
Allow some flowers to remain undeadheaded for seed production and self-seeding. Reduce watering as plants naturally dry down. Seeds mature and dry in capsules.
Seed Harvest & Senescence
Variable; seeds disperse naturallyMature seed pods dry completely; plants may yellow or die back, especially in warm climates or after flowering peak.
Collect seed pods before they shatter naturally if you want to harvest seeds. Allow self-seeding by leaving some mature pods on the plant. Remove spent plants after seeds disperse or in fall cleanup.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with strong water stream; use insecticidal soap or neem oil if infestations persist. Encourage native ladybugs and parasitic wasps.
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Increase humidity by misting; spray with neem oil or sulfur dust. Most problematic in hot, dry conditions.
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Ensure good air circulation; avoid overhead watering. Apply sulfur dust or potassium bicarbonate fungicide if severe.
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and
(Gastropoda)
Remove by hand, especially at night. Create barriers with crushed eggshells or diatomaceous earth. Remove shelter and excess moisture.
Uses
Native Pollinator Support
WildlifeBurrowing Bee Plant is highly attractive to native bees, including sweat bees, mining bees, and other native pollinators seeking early-season nectar. The abundant flowers provide essential food sources during the crucial spring and early summer pollination season. [source]
Wildflower Seed Harvesting & Meadow Creation
CraftThe prolific self-seeding habit makes this plant ideal for naturalizing in meadows, xeriscape gardens, and pollinator meadows. Gardeners can easily collect seeds for propagation or allow plants to self-sow for years of blooms. [source]
Edible Flowers
CulinaryThe delicate, fragrant flowers are technically edible and can garnish salads or be used as culinary decoration, offering a subtle floral flavor and visual appeal. [source]
Fragrant Fresh Arrangements
HouseholdThe sweetly-scented flowers are excellent for small fresh bouquets and arrangements, bringing delicate beauty and subtle fragrance indoors during the blooming season. [source]
Traditional Ethnobotany
MedicinalHistorically, some Native American tribes used Collomia species for minor medicinal applications, though modern herbal use is limited and evidence is anecdotal. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest seed pods when they turn brown and dry, typically 6-8 weeks after flowering. Collect pods in a paper bag and allow them to dry completely indoors before extracting seeds. Seeds are tiny and abundant—one mature plant can produce hundreds of seeds for next season's planting or sharing.
Fun Facts
- 🌱 The common name 'Burrowing Bee Plant' refers to the plant's association with native mining bees and sweat bees that burrow in nearby soil to create their nests, attracted by the abundant nectar source.
- 🌱 When wet, the seeds develop a sticky, mucilaginous coating that may have aided in animal dispersal historically, and this property is sometimes exploited by native peoples for other purposes.
- 🌱 This plant is extremely drought-tolerant once established and thrives in poor, sandy soils where many ornamental plants struggle, making it perfect for water-wise and xeriscaped gardens.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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