How to Grow Browallia Purple Bells
Browallia Purple Bells
Browallia speciosa
flowerBrowallia Purple Bells is an elegant ornamental flowering plant featuring deep purple-blue blooms with distinctive white or pale centers. This tender perennial is typically grown as an annual and produces abundant, delicate flowers throughout the growing season. It's prized as a container plant, bedding plant, and for hanging baskets due to its graceful, mounding habit.
Growing Conditions
Soil
Growing Zones
Find your zone →Zones 10-11; grown as an annual in cooler climates or indoors year-round
Sign up to see your zone highlighted.
Growth Stages
Seed/Germination
10-15 daysTiny seeds are sown on soil surface. Seedlings emerge within 10-15 days with paired cotyledons.
Keep soil consistently moist. Provide warmth (70-75°F ideal) and bright light. Do not bury seeds. Bottom heat accelerates germination.
Seedling & Early Growth
3-4 weeksFirst true leaves appear; seedlings develop 2-4 sets of leaves. Plants remain small and delicate.
Thin seedlings to prevent crowding. Provide bright indirect light. Begin dilute fertilization every 2 weeks. Keep soil moist but ensure good air circulation.
Vegetative Growth
3-4 weeksPlant develops branching structure and multiple stems. Foliage becomes bushier and fuller. No flowers yet.
Pinch growing tips when plants are 4-6 inches tall to encourage bushiness. Continue regular feeding. Maintain consistent moisture and humidity. Transplant to larger containers if needed.
Flowering
6-12 weeks or moreAbundant deep purple-blue flowers with white centers appear throughout stems. Blooms are delicate and numerous.
Deadhead spent flowers to encourage continuous blooming. Maintain consistent moisture; drought stresses plants and reduces flowering. Feed every 2 weeks with balanced or slightly higher phosphorus fertilizer. Ensure good air circulation to prevent fungal issues.
Decline/End of Season
Variable; marks end of outdoor growing seasonAs temperatures drop (below 50°F) or day length decreases, flowering slows. Plant becomes less vigorous.
In cooler climates, treat as annual and remove. In zones 10-11, cut back by one-third and reduce watering for winter rest, or bring indoors. Can be overwintered indoors in bright indirect light with minimal watering.
Common Pests
-
Spray with insecticidal soap or neem oil. Increase air circulation. Use yellow sticky traps to monitor. Isolate affected plants.
-
Mist foliage regularly to increase humidity (mites prefer dry air). Spray with neem oil or miticide. Improve air circulation.
-
Remove with cotton swab dipped in rubbing alcohol. Spray with insecticidal soap. Isolate infested plants.
-
Improve air circulation. Reduce overhead watering. Apply sulfur dust or fungicide if severe. Remove affected foliage.
-
Improve drainage and air circulation. Remove infected plant material promptly. Reduce humidity. Avoid overhead watering in evening.
Uses
Ornamental garnish
CulinaryThe delicate purple-blue flowers are edible and can be used as decorative garnishes for desserts, salads, and cocktails. They add visual appeal and a subtle, mild flavor to culinary presentations. [source]
Interior decoration
HouseholdBrowallia Purple Bells thrives as a houseplant in bright indirect light and adds elegant color to indoor spaces. It's particularly suited to hanging baskets, shelves, and shaded windowsills where other flowering plants struggle. [source]
Cut flowers and floral arrangements
CraftThe delicate stems and abundant blooms make Browallia excellent for fresh flower arrangements and garden bouquets. Use in mixed arrangements for texture and color contrast. [source]
Pollinator attraction
WildlifeThe flowers attract bees, hoverflies, and other pollinators, making it valuable in gardens designed to support beneficial insects and biodiversity. [source]
Container and basket gardening
HouseholdThe mounding, cascading habit makes Browallia ideal for hanging baskets, window boxes, and decorative containers on patios and porches. [source]
Harvest Tips
Browallia Purple Bells is grown for ornamental flowers rather than harvest. Deadhead spent blooms regularly by pinching or cutting just below the flower stem. This encourages more flower production. Cut stems for fresh indoor arrangements; flowers will last 5-7 days in water.
Fun Facts
- 🌱 Browallia Purple Bells is native to Colombia and other parts of South America, where it grows in tropical cloud forests with filtered sunlight, explaining its preference for partial shade.
- 🌱 Unlike most ornamental flowers, Browallia actually prefers and thrives in shade or partial shade, making it one of the best choices for gardeners with limited sunny space.
- 🌱 The plant's name honors John Browall, an 18th-century Swedish bishop and botanist who was a friend of Carl Linnaeus.
Want personalized planting timelines?
Sign up to get frost dates, task lists, and more for your zone.
Get started free