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 Botanic Garden >> Gardening >  >> Question and Answer >> Plant Species >> Annuals

Petunia Growth Timeline: Seed to Bloom and Flower Opening Duration

University student needs petunia growth timing for advertising assignment: sprout time, unopened blossom appearance, and blossom opening duration.

Data (C.L.)

  • Seed to first bloom: 12-13 weeks.
  • Formed flower to open: 6-9 days.
  • "Unopened blossom" stage too subjective to time accurately.
Annuals
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Identifying and Managing Lichens on Outdoor Wood Structures
Petunia and Geranium Problems: Worms, Fertilizer Burn, and Root Girdling
Petunias Dying in One Bed: Phytophthora Root Rot — Soilborne and Host-Specific
Petunias Dying Suddenly? Crown Rot from Sprinkler Overwatering
Rescuing Waterlogged Container Petunias: Drainage, Root Aeration, and Recovery
Petunias vs. Surfinias: Trailing vs. Upright Types
Black Dots on High-Rise Petunias: Caterpillars or Flea Beetles?
Window Box Petunias Dying Suddenly? Check for Virus or Overwatering
Why Petunias Feel Sticky: Nature's Insect Defense
Garden Articles

Reviving Rain-Damaged Trailing Petunias in Hanging Baskets

The "Less is More" Petunia Philosophy: Pinching, Watering, and Fertilizer Truths

Petunia Yellow Leaves: Four Causes and Targeted Fixes

Starting Petunias from Seed in Denver: Timing and Techniques

Revitalizing Leggy Petunias: When and How to Cut Back for More Blooms

Troubleshooting Dying Petunias: Water, Pot Size, and Drainage Solutions

Growing Vibrant Petunias: Soil, Fertilizer, and Care Secrets

Plants

Caterpillars and Aphids on Petunias: Hand-Picking and Spinosad

Reviving a Dormant Dendrobium with Crusty Canes

Can Drosera spatulata Seeds Germinate in Water? Short-Term Only

Post-Bloom Kalanchoe Care: Trimming and Reblooming Requirements

Troubleshooting Wilting Petunias: Beetles, Rot, and Verticillium Wilt

Maximizing Arborvitae Growth for Privacy Screening

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